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Post by dragonkid11 on Mar 16, 2017 0:03:20 GMT
How in the world did I not notice this challenge this thread?
Okay, gonna see if I can tackle this challenge later as soon as I figure out how to make good RTG.
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Post by Dhan on Mar 17, 2017 21:32:21 GMT
Just beat the difficulty level two with this guy. Didn't really push the mass or credit budget but still managed to get something usable. I had rely on some manual piloting and merciful AI behavior (not lasing away all of my guns) to beat it, but it was a victory nonetheless. The drop tanks jettison to obtain 1.06 km/s DV with 400 mg acceleration. RailgunModule 200 kW 4mm Turreted Capacitor Railgun UsesCustomName false PowerConsumption_W 2e+005 Capacitor Count 1 DielectricComposition Hafnia Dimensions_m 0.092 0.3 Separation_m 1.4e-007 Rails Composition Zirconium Copper Thickness_m 0.11 Length_m 1.5 BarrelArmorThickness_m 0.317 Armature Composition Vanadium Chromium Steel BoreRadius_m 0.0024 Mass_kg 0.001 Tracer Sodium Chloride Payload null Loader PowerConsumption_W 5000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.15 MomentumWheels Composition Iron RotationalSpeed_RPM 44 TargetsShips true TargetsShots true
RadioisotopeThermoelectricGeneratorModule 50.4 kW Radioisotope Thermoelectric Generator UsesCustomName false FuelPellet Fuel Promethium-147 Mass_kg 100 Height_m 0.075 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.032 ExitTemperature_K 560 Coolant Ethane Turbopump Composition Potassium PumpRadius_m 0.01 RotationalSpeed_RPM 1
RailgunModule 200 kW 4mm Turreted Capacitor Railgun UsesCustomName false PowerConsumption_W 2e+005 Capacitor Count 1 DielectricComposition Hafnia Dimensions_m 0.092 0.3 Separation_m 1.4e-007 Rails Composition Zirconium Copper Thickness_m 0.11 Length_m 1.5 BarrelArmorThickness_m 0.317 Armature Composition Vanadium Chromium Steel BoreRadius_m 0.0024 Mass_kg 0.001 Tracer Sodium Chloride Payload null Loader PowerConsumption_W 5000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.15 MomentumWheels Composition Iron RotationalSpeed_RPM 44 TargetsShips true TargetsShots true
CombustionRocketModule 4.00 km/s LOX LH2 Gimballed Combustion Rocket UsesCustomName false Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition UHMWPE ThroatRadius_m 0.2 ChamberWallThickness_m 0.00023 ChamberContractionRatio 23 NozzleExpansionRatio 58 NozzleExpansionAngle_degrees 18 RegenerativeCooling_Percent 1 Injector Composition Lithium PumpRadius_m 0.45 RotationalSpeed_RPM 8.7 Gimbal InnerRadius_m 0.75 ArmorComposition Graphite Aerogel ArmorThickness_m 0.0001 MomentumWheels Composition Lithium RotationalSpeed_RPM 820 GimbalAngle_degrees 7
PropellantTankModule 79.4 t Oxygen Tank UsesCustomName false Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 79400 HeightToRadiusRatio 1 AdditionalArmorThickness_m 0
PropellantTankModule 10.0 t Hydrogen Tank UsesCustomName false Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 10000 HeightToRadiusRatio 1 AdditionalArmorThickness_m 0
RadioisotopeThermoelectricGeneratorModule 50.4 kW Radioisotope Thermoelectric Generator UsesCustomName false FuelPellet Fuel Promethium-147 Mass_kg 100 Height_m 0.075 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.032 ExitTemperature_K 560 Coolant Ethane Turbopump Composition Potassium PumpRadius_m 0.01 RotationalSpeed_RPM 1
CrewModule 56 Crew Module UsesCustomName false CrewCapacity 56 Decks 10 StructureMaterial Titanium ShellThickness_m 0.01
RadiatorModule RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 2 Height_m 6 Thickness_m 0.001 ArmorThickness_m 0.001 Panels 1 FrontTaper_radians 0.777 BackTaper_radians 0.777 SurfaceFinish Titanium Nitride
RadiatorModule RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 2 Height_m 6 Thickness_m 0.001 ArmorThickness_m 0.001 Panels 1 FrontTaper_radians 0.777 BackTaper_radians 0.777 SurfaceFinish Titanium Nitride
RadiatorModule Crew Radiator UsesCustomName true Composition Lithium PanelWidth_m 1.7 Height_m 6.2 Thickness_m 0.001 ArmorThickness_m 0.001 Panels 1 FrontTaper_radians 0.777 BackTaper_radians 0.777 SurfaceFinish Titanium Nitride
PropellantTankModule 18.0 t Hydrogen Drop Tank UsesCustomName false Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 18000 HeightToRadiusRatio 13 AdditionalArmorThickness_m 0 External ExplosiveBoltMass_kg 0.001 ExplosiveBoltComposition Nitrocellulose
PropellantTankModule 143 t Oxygen Drop Tank UsesCustomName false Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 1.43e+005 HeightToRadiusRatio 5.5 AdditionalArmorThickness_m 0 External ExplosiveBoltMass_kg 0.001 ExplosiveBoltComposition Nitrocellulose
RadioisotopeThermoelectricGeneratorModule 50.4 kW Radioisotope Thermoelectric Generator UsesCustomName false FuelPellet Fuel Promethium-147 Mass_kg 100 Height_m 0.075 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.032 ExitTemperature_K 560 Coolant Ethane Turbopump Composition Potassium PumpRadius_m 0.01 RotationalSpeed_RPM 1
RadiationShieldModule 8.40 m Diameter 50.0 cm Radiation Shield UsesCustomName false Composition Silica Aerogel Dimensions_m 4.2 0.5
AmmoModule 10000x 4mm Railgun Round UsesCustomName false SuppliedModule 200 kW 4mm Turreted Capacitor Railgun AmmoBay Capacity 10000 Stacks 10 ArmorComposition Aluminum ArmorThickness_m 0.005
CraftBlueprint Liberty Assault Cutter Modules 50.4 kW Radioisotope Thermoelectric Generator 4 25.338 null 0 200 kW 4mm Turreted Capacitor Railgun 2 55.122 null 0 10000x 4mm Railgun Round 1 25.463 null 0 4.00 km/s LOX LH2 Gimballed Combustion Rocket 5 0 null 0 79.4 t Oxygen Tank 1 18.627 null 0 10.0 t Hydrogen Tank 1 0 null 0 50.4 kW Radioisotope Thermoelectric Generator 1 25.401 null 0 56 Crew Module 1 25.213 null 0 RTG Radiator 4 5.3709 50.4 kW Radioisotope Thermoelectric Generator 0 RTG Radiator 2 15.312 50.4 kW Radioisotope Thermoelectric Generator 1.57 Crew Radiator 2 15.532 56 Crew Module 0 18.0 t Hydrogen Drop Tank 4 26.885 null 0.78 143 t Oxygen Drop Tank 4 7.0594 null 0.78 1.50 m x 0 m Spacer 1 26.713 null 0 50.4 kW Radioisotope Thermoelectric Generator 4 25.588 null 0 8.40 m Diameter 50.0 cm Radiation Shield 1 26.151 null 0 Armor ArmorLayers Graphite Aerogel 0.0005 0 0 0.42 1 Maraging Steel 0.005 0 0.42 1 1 Graphite Aerogel 1 0.01 0.41 1 1 Vanadium Chromium Steel 0.0027 0.01 0.42 1 1 Silica Aerogel 0.1 0.03 0.42 1 1
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Post by dwwolf on Mar 18, 2017 16:43:00 GMT
Presenting... the Long Assault Cutter. Steel tanks; 610kW power; 60x 250t nukes that go totally unfired because the intercept wasn't lined up perfectly. 6 points for level 1. I'll need to modify the nuke gun with a turret for level 2. I could probably improve the railguns a lot too; I made inextensive modificiations to the stock 200kW. Modules (warning over 9000 images): Naughty naughty material violation.....
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Post by Rocket Witch on Mar 18, 2017 20:08:04 GMT
Naughty naughty material violation..... Would be better to say what's wrong. You had me confused for a while ("boron carbide counts as boron?") but I see, diamond engine. New engine (the ineffectual cooling is just for looks): Incidentally, am I the only person using methalox instead of hydrolox? Other improvements: Blueprint: NuclearPayloadModule LAC 250t Pu-239 PFN UsesCustomName true CoreComposition Pu-239 ReflectorComposition Lithium SlowExplosive CombustionReaction Silicon Thermite DelayComposition Lithium DelayCompositionMassFraction 0 FastExplosive Nitrocellulose CoreMass_kg 0.0258 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0503 InnerExplosiveWidth_m 0.001 FusionBoost null FusionFuelDensity_kg__m3 0 Detonator HardRange_km 0 ActivationRange_km 1 MinimumRange_km 0.25 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
SpacerModule 10.0 cm x 0 m Spacer UsesCustomName false Dimensions_m 0 0.1
SpacerModule 5.00 cm x 0 m Spacer UsesCustomName false Dimensions_m 0 0.05
CombustionRocketModule LAC 2.5MN Methalox Engine UsesCustomName true Reaction LOX Methane StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Amorphous Carbon ThroatRadius_m 0.025 ChamberWallThickness_m 0.0865 ChamberContractionRatio 5.7 NozzleExpansionRatio 250 NozzleExpansionAngle_degrees 10 RegenerativeCooling_Percent 0.25 Injector Composition UHMWPE PumpRadius_m 0.25 RotationalSpeed_RPM 511 Gimbal InnerRadius_m 0.366 ArmorComposition UHMWPE ArmorThickness_m 0.001 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 82100 GimbalAngle_degrees 9.99
PropellantTankModule LAC 100t Methane Tank UsesCustomName true Propellant Methane StructureComposition Vanadium Chromium Steel ReactionMass_kg 1e+005 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
PropellantTankModule LAC 400t Oxygen Tank UsesCustomName true Propellant Oxygen StructureComposition Vanadium Chromium Steel ReactionMass_kg 4e+005 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
RadioisotopeThermoelectricGeneratorModule LAC 305kW RTG UsesCustomName true FuelPellet Fuel Promethium-147 Mass_kg 600 Height_m 1 Thermocouple PTypeComposition Nickel Chromium Iron NTypeComposition Pyrolytic Carbon Length_m 0.155 ExitTemperature_K 570 Coolant Alumina Nanofluid Turbopump Composition Polyethylene PumpRadius_m 0.01 RotationalSpeed_RPM 30000
RadiatorModule LAC RTG Radiator UsesCustomName true Composition Silicon PanelWidth_m 1 Height_m 30 Thickness_m 0.02 ArmorThickness_m 0.02 Panels 2 FrontTaper_radians 0 BackTaper_radians 0.52 SurfaceFinish Gold
RadiatorModule LAC Crew Radiator UsesCustomName true Composition Silicon PanelWidth_m 1 Height_m 20 Thickness_m 0.02 ArmorThickness_m 0.02 Panels 1 FrontTaper_radians 0.528 BackTaper_radians 0.528 SurfaceFinish Gold
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 34 Decks 12 StructureMaterial Alpha-2 Titanium Aluminide ShellThickness_m 0.05
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 34 Decks 12 StructureMaterial Alpha-2 Titanium Aluminide ShellThickness_m 0.05
ConventionalGunModule LAC 31.6mm Turreted Cannon UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 1 Thickness_m 0.0027 Propellant Composition TNT Mass_kg 0.011 GrainRadius_m 0.0013 Projectile Composition Tungsten BoreRadius_m 0.0158 Mass_kg 0.001 Tracer Copper(I) Chloride Payload null Loader PowerConsumption_W 288 Turret InnerRadius_m 0.14 Extruded true ArmorComposition Alpha-2 Titanium Aluminide ArmorThickness_m 0.015 MomentumWheels Composition Polyethylene RotationalSpeed_RPM 12000 AttachedAmmoBay Capacity 5000 Stacks 25 TargetsShips true TargetsShots true
ConventionalGunModule LAC 31.6mm Turreted Cannon UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 1 Thickness_m 0.0027 Propellant Composition TNT Mass_kg 0.011 GrainRadius_m 0.0013 Projectile Composition Tungsten BoreRadius_m 0.0158 Mass_kg 0.001 Tracer Copper(I) Chloride Payload null Loader PowerConsumption_W 288 Turret InnerRadius_m 0.14 Extruded true ArmorComposition Alpha-2 Titanium Aluminide ArmorThickness_m 0.015 MomentumWheels Composition Polyethylene RotationalSpeed_RPM 12000 AttachedAmmoBay Capacity 5000 Stacks 25 TargetsShips true TargetsShots true
RailgunModule LAC 100kW 4mm T-C-Railgun UsesCustomName true PowerConsumption_W 1e+005 Capacitor Count 1 DielectricComposition Water Dimensions_m 0.6 0.2 Separation_m 1.5e-006 Rails Composition Aluminum Zinc Magnesium Thickness_m 0.081 Length_m 0.76 BarrelArmorThickness_m 0.133 Armature Composition Vanadium Chromium Steel BoreRadius_m 0.00209 Mass_kg 0.001 Tracer Tungsten Payload null Loader PowerConsumption_W 1e+005 Turret InnerRadius_m 0.58 Extruded true ArmorComposition Alpha-2 Titanium Aluminide ArmorThickness_m 0.015 MomentumWheels Composition Polyethylene RotationalSpeed_RPM 292 AttachedAmmoBay Capacity 40000 Stacks 1 TargetsShips true TargetsShots true
RadiationShieldModule LAC Bulkhead UsesCustomName true Composition Vanadium Chromium Steel Dimensions_m 2.2 0.01
CraftBlueprint LAC 2.5-250 PFN Modules LAC 250t Pu-239 PFN 1 0 null 0 Default Remote Control 1 -0.5 null 0 10.0 cm x 0 m Spacer 1 1 null 0 5.00 cm x 0 m Spacer 1 2 null 0 Armor ArmorLayers Alpha-2 Titanium Aluminide 0.001 0 0 1 1
ConventionalGunModule LAC Nuke Cannon UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 6 Thickness_m 0.0098 Propellant Composition TNT Mass_kg 10 GrainRadius_m 0.0037 Projectile Composition Magnesium BoreRadius_m 0.34 Mass_kg 0.001 Tracer null Payload LAC 2.5-250 PFN Loader PowerConsumption_W 3e+005 AttachedAmmoBay Capacity 60 Stacks 30 TargetsShips true TargetsShots false
CraftBlueprint LAC Modules LAC 2.5MN Methalox Engine 4 0 null 0 LAC 100t Methane Tank 4 3.2617 null 0 LAC 400t Oxygen Tank 4 0.5 null 0 LAC 305kW RTG 2 -0.71875 null 0 LAC RTG Radiator 4 15.353 LAC 305kW RTG 0 LAC Crew Radiator 4 42.091 LAC Crew Module 0 LAC Crew Module 1 0.03125 null 0 LAC Crew Module 1 3.7617 null 0 LAC Nuke Cannon 1 143.03 null 0 LAC 31.6mm Turreted Cannon 2 101.86 null 0 LAC 31.6mm Turreted Cannon 4 85.854 null 0.7854 LAC 100kW 4mm T-C-Railgun 4 69.948 null 0 LAC Bulkhead 1 149.42 null 0 Armor ArmorLayers Vanadium Chromium Steel 0.005 0 0.9 1 1 Spider Silk 0.01 0.05 0 1 1 Amorphous Carbon 0.005 0 0 1 1 Nickel Phosphorus Microlattice 0.05 0.35 0.7 1 1 Gamma Titanium Aluminide 0.0025 0.35 0 1 1
~35% less reaction mass. Seems it was well over its practical maximum delta-v. The less comical length should aid main gun aiming. Said main gun's barrel was shortened, still not turreted since if it is the ship turns broadside which it isn't meant to do. Turrets rearmoured: 1cm B4C → 1.5cm A2TA. Tail gun (yes there really was one) moved to a dual battery nearer the front, extra turret takes up the single spare crew member. Armour scheme has steel nose until reaching the front of the fore crew compartment, which is protected from the hole presented by the gun with a 1cm steel radshield. The astonishing 5cm of moneylattice also only covers the frontal slope, though it stretches further than the steel, all the way to the first turrets. I just used it to fill up more of the money allowance without adding mass/removing delta-v. Flotillas won't consistently beat Vesta, really depends if the nukes get fired before the Cutter eats the guns.
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Post by theholyinquisition on Mar 19, 2017 3:35:17 GMT
Naughty naughty material violation..... Incidentally, am I the only person using methalox instead of hydrolox? Well, we can make tanks big enough for hydrogen and hydrogen deut to be viable. Density isn't as much of an issue.
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Post by vegemeister on Mar 22, 2017 1:10:27 GMT
The comrades from the People's Shipyard at Deimos present the LAC of Blessed Acceleration: PowerThe LAC is supplied with 744 kW of electrical power, from a trio of 1 tonne strontium-90 RTGs, which operate at 56.1% efficiency and reject heat at 370 K. It was determined in initial design meetings that the most severe constraint for this ship would be the power budget, due to the unavailability of atomic fission reactors. Therefore, as with all ship systems, where it was possible to spend mass or less-than-ridiculous amounts of money to gain efficiency, this was done. Heat is rejected through slightly-armored calcium radiators. Unarmored lithium radiators were specified initially, but these were found to be too easily shot off or boiled away by high yield atomic bombs, such as are carried by the Devastator missile. Also calcium looks cooler (even though the realism of that color is questionable). Like all radiators on the ship, they are quadruple redundant. The design team considered using a water ice or ammonia heatsink to allow the radiators to be battened down during combat. This would allow a substantial reduction in radiator mass and considerably improve survivability (even with the armor and 4-redudance, the radiators are the weakest link on the ship). However, no ships have been built with this feature before, and it was thought imprudent to start experimenting with core ship systems during wartime. Propulsion
Seven 4.5 km/s hydrolox engines accelerate the ship at slightly over 1 g. Hydrolox was chosen because it offers the best exhaust velocity of the non-fluorine fuel chemistries, and propellant density is better than methalox (according to the chart in the standards thread). Due to the embargo on boron imports and the recent sabotage of our bulk diamond manufacturing station, the engine thrust chambers are made of amorphous carbon. Armor
The original armor plan called for 4 m of graphite aerogel, with an amorphous carbon backstop and spider silk spall liner. However, simulator testing revealed that, if a gun turret were destroyed, the resulting hole in the armor could permit bullets to enter the hull at highly oblique angles, and make their way through the backstop (which, honestly, can barely stop a stray fart), and into the crew compartment. Therefore, the graphogel armor was split into two layers of 2 m, each topped with 1 cm of lithium. With this design change, if a turret is destroyed, bullets that don't come in nearly perpendicular to the hull will strike the second graphogel layer. And the only thing directly under the gun turrets is the nose hydrogen tank, which is much less mission-critical than the crew compartment. Fortuitously, the double-stuffed whipple structure also proved somewhat more effective at stopping projectiles than the graphogel alone. A 500 micron lithium layer was placed behind the armor, in order to detect penetrations with the armor status overlay (anything that damaged 500 um of lithium almost certainly went through it). Gun turrets are armored with 10 cm of amorphous carbon. This is reduced to 7 cm of amorphous carbon on the counterlaser turrets, for faster traverse. Main laser turrets have a perfunctory 200 microns of nitrile rubber. Due to their large size, heavier armor would balloon cost, mass, and most importantly, traverse power requirement. To deal with the hole left in the armor when the main lasers are inevitably shot off, they are placed around a spacer at the rear of the fuselage, just ahead of the engines, which are sparsely placed and multiply redundant. Armament
The primary weapon system is a ring of 10 medium velocity machine guns, firing a 42 g projectile at 2.4 km/s. This weight is a homage to a widely renowned caliber from Earth's history, the ".50 BMG", and has proven very effective against common USTA armor schemes in testing. Our ship's guns, freed from the constraint of operation within an atmosphere, use a considerably larger diameter barrel and fire their projectiles at considerably greater velocity than the original. The rate of fire of each gun is 1800 rounds per minute. In order to strike fear into the hearts of the enemy and sow chaos in battle, the primary weapon system is supplemented by a pair of large-bore cannons, which fire a shell containing a 1 kt plutonium bomb augmented with a 1 kg osmium plate. The plate is intended to penetrate the heaviest of armor when propelled by the nuclear blast, although this effect has not been tested. RFP Intelligence has informed us that the radar signal from the proximity fuze will cause the USTA's point-defense software to treat the shell as a very high priority target. This information has proven accurate in a few engagements with USTA vessels, where the atomic cannons were used to great effect. For defense against drone attacks, the LAC of Blessed Acceleration also mounts four high efficiency (6.14%) 150 kW lasers, feeding four 2 1/3 meter radius turreted mirror. These lasers can bring 10.1 MW/m to bear at 100 km. In case the enemy fields lasers of their own, the LAC has a 100 kW counterlaser, feeding ten 5 cm radius mirrors mounted in fast-traverse turrets. Laser generators are mounted separately from the turrets, which allows them to be placed in otherwise unused space in the nose of the vessel. Unfortunately, mere days before the LAC was scheduled to go into volume production, an internal audit revealed that the chief laser engineer had foisted the task of designing the lasers off onto her apprentice, who had specified diamond arc lamp envelopes. The chief engineer subsequently discovered a number of poorly encrypted emails in the apprentice's inbox, which proved he had been in the pay of the USTA for months. If this vile sabotage had not been discovered, hundreds of tonnes of precious diamond would have been diverted from front-line vessels. The lasers were quickly redesigned to use fused quartz arc lamps, which reduced their efficiency. That is, if we are to believe the saboteur's claim of 8.44% with the diamond envelopes. The war department will be pleased to know that the traitorous apprentice has been transported to the Phobos penal colony. Special FacilitiesFor defense against missiles which are too heavily armored or too numerous to be shot down with the main lasers, the LAC carries a number of 60-second flares. The otherwise very constraining RTG power budget was actually quite beneficial here, because it allowed the use of very small 10 MW flares. In the unfortunate eventuality that that the enemy manages to kill or incapacitate the ship's human crew, the LAC of Blessed Acceleration is equipped with a small AI combat unit which will allow the vessel to avenge it's own crew, autonomously or under the direction of other ships in the same fleet. This capability was found useful in simulation with early design iterations of the ship, but has not been necessary in the field. And of course, as specified, the LAC of Blessed Acceleration has spare bunks for a complement of 30 marines. DoctrineProspective captains of this vessel class are advised as follows: 1. Always orient the nose of the ship toward the enemy, or even better, toward the direction of incoming fire. Never order your helmsman to orient the ship "broadside". Unfortunately, training at the academy has been rather lax during the war, and he will likely not understand which side of the ship that is on a vessel of this configuration. He will deprive you of the use of half your weapons, and he may expose the flat sides of your radiators, or allow enemy fire to strike the armor normal to its surface. In that case, the effectiveness of the armor is not guaranteed. He may also use up your propellant very quickly, by continuously trying to keep the side of your ship pointed at the enemy, while at the same time accelerating perpendicular to the sight line to the enemy. 2. Because of the small electrical power budget afforded your ship, your weapons are mostly chemical, and their muzzle velocities are quite low. They are, however, exceedingly accurate. It will probably be necessary to override the targeting computer, both to open fire earlier and, in engagements with multiple enemy ships, to cycle the computer between targets. Unless your ship is closing with the enemy very quickly, you can probably dispense enough bullets to shred his hull before the first ones arrive. 3. If an enemy vessel is equipped with lasers, it is best to leave the lens caps on your main lasers until the counterlaser turrets have achieved laser superiority. The enemy's fire control software is, unfortunately, somewhat more sophisticated than ours, and will focus fire on vulnerable lasers automatically. Yours, however, will not, so you should order your gunners to do so manually. 4. If the enemy launches missiles against you, it is suggested that you attempt to destroy them with the main lasers. If the missiles come within 60 seconds of intercept, it is imperative that you launch a flare immediately. Flares are much cheaper than lives, and your ship carries plenty of flares for any engagement. If you suspect that the missiles may be carrying high-yield warheads, you should keep attempting to lase them until about 10 s prior to intercept, then retract the radiators and hope for the best. Your ship is armored against nuke flash, but the radiators are comparatively delicate. Don't worry too much about overheating the RTGs. They are designed to operate significantly below the melting point of the fuel pellet, so you have about a minute and a half to get the radiators back out. 5. Drones can be easily dispatched by targeting their weapons with your main lasers, but after doing so you should order your helmsman to thrust a little, in order to get out of the way of any bullets they may have fired before their demise. 6. Do try to dodge incoming fire. You've got lots of acceleration. 7. If you find yourself heavily outgunned, it may be useful to open up with the atomic cannons at extreme range. The enemy may become preoccupied with the incoming shells, and a lucky hit can take out their more dangerous weapons before they start shooting. 8. If, on the other hand, you find yourself facing a less threatening opponent, the main lasers work quite well for disabling a vessels engines, rendering it unable to evade bullets from the machine guns. Or if you wish to capture the enemy vessel mostly intact, you can use the threat of the machine guns to order the crew to stand down while you disable the rest of their weapons and board them. We envision that, when the war is over these LACs can be re-purposed for anti-smuggling and other police operations. ScoringThis ship, with proper piloting, is capable of completing all three difficulty levels on its own. Since it only requires one ship, instead of three, I count the extras as undamaged. Level 1: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 2: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 3: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Additional friendly ships (-2): 8 =P Total: 18 Grand Total: 38 The crew of the RSF Plasma Wake observe the icy remains of Admiral Voitenko's 1/2 Gc fleet: Code:
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
FlareModule 10.0 MW Nitrocellulose Flare, 60 s UsesCustomName true ArmorComposition Lithium ArmorThickness_m 0.001 Cylinder_m 0.1307 2.02 Pyrotechnic CombustionReaction Nitrocellulose DelayComposition Lithium DelayCompositionMassFraction 0.213
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
CombustionRocketModule LAC Engine, Hydrolox UsesCustomName true Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Amorphous Carbon ThroatRadius_m 0.035 ChamberWallThickness_m 0.061 ChamberContractionRatio 4.9 NozzleExpansionRatio 680 NozzleExpansionAngle_degrees 15 RegenerativeCooling_Percent 0 Injector Composition Polyethylene PumpRadius_m 0.35 RotationalSpeed_RPM 261 Gimbal InnerRadius_m 0.56 ArmorComposition Amorphous Carbon ArmorThickness_m 0.015 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 58000 GimbalAngle_degrees 22.5
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 81 Decks 9 StructureMaterial Calcium ShellThickness_m 0.01
RadioisotopeThermoelectricGeneratorModule 248 kW LAC RTG UsesCustomName true FuelPellet Fuel Strontium-90 Mass_kg 1000 Height_m 0.01 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.015 ExitTemperature_K 370 Coolant Ethane Turbopump Composition Lithium PumpRadius_m 0.01 RotationalSpeed_RPM 280
PropellantTankModule Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 12000 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
PropellantTankModule Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 95280 HeightToRadiusRatio 9.9 AdditionalArmorThickness_m 0
RadiatorModule LAC RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 23.5 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0 BackTaper_radians 0.117 SurfaceFinish null
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
SpacerModule LAC Bow Spacer UsesCustomName true Dimensions_m 0 18.5
RadiatorModule LAC Environmental Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 0.1 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0.117 BackTaper_radians 0 SurfaceFinish null
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
RadiatorModule 1100 K Launcher Radiator, LAC UsesCustomName true Composition Calcium PanelWidth_m 0.25 Height_m 0.2 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 2 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
PropellantTankModule LAC Nose Hydrogen Tank UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 35000 HeightToRadiusRatio 1.2 AdditionalArmorThickness_m 0
PropellantTankModule LAC Nose Oxygen Tank UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 2.779e+005 HeightToRadiusRatio 2.9 AdditionalArmorThickness_m 0
SpacerModule LAC Tail Spacer UsesCustomName true Dimensions_m 0 10
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
SpacerModule LAC Tail Diameter Spacer UsesCustomName true Dimensions_m 6.75 0
CraftBlueprint Flare, 10 MW, 60 s Modules 10.0 MW Nitrocellulose Flare, 60 s 1 0 null 0 Armor
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
StandaloneLaserMountModule 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km Turret InnerRadius_m 4.945 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.0002 MomentumWheels Composition Cobalt RotationalSpeed_RPM 4.5 TargetsShips true TargetsShots true
StandaloneLaserMountModule 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC Turret InnerRadius_m 0.153 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.07 MomentumWheels Composition Iridium RotationalSpeed_RPM 740 TargetsShips true TargetsShots true
AmmoModule 20000x 38mm Cannon Round UsesCustomName false SuppliedModule LAC Turreted Autocannon, .50 BMG, MV AmmoBay Capacity 20000 Stacks 20 ArmorComposition Spider Silk ArmorThickness_m 0.05
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
CarrierModule 300 kW Flare, 10 MW, 60 s Launcher UsesCustomName false Payload Flare, 10 MW, 60 s Launcher Stator Aluminum Nickel Cobalt TrackLength_m 0.95 StatorDepth_m 0.51 Forcer Calcium ForcerRadius_m 0.084 Coolant Ethane PowerConsumption_W 3e+005 CoolantTurbopump Composition Calcium PumpRadius_m 0.02 RotationalSpeed_RPM 17 CoolantInletTemperature_K 1100 ArmorMaterial Lithium ArmorThickness_m 0.001 AttachedAmmoBay Capacity 20 Stacks 1 EngagementRange_km 0 TargetsShips false TargetsShots false
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
AmmoModule 200x Dumb NEFP Shell UsesCustomName false SuppliedModule Dumb NEFP Shell Turreted Cannon, LAC AmmoBay Capacity 200 Stacks 4 ArmorComposition Spider Silk ArmorThickness_m 0.005
CraftBlueprint LAC of Blessed Acceleration Modules LAC Engine, Hydrolox 7 0 null 0 LAC Crew Module 1 52.967 null 0 248 kW LAC RTG 3 37.561 null 0 Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox 19 50.082 null 0 Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox 19 50.723 null 0 LAC RTG Radiator 4 19.874 248 kW LAC RTG 0 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 4 70.602 null 0 LAC Bow Spacer 1 85.992 null 0 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 4 9.4472 null 0.7854 300 kW Flare, 10 MW, 60 s Launcher 1 10.513 null 1.43 LAC Environmental Radiator 4 34.967 LAC Crew Module 0 LAC Laser Radiator 4 38.551 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 0 1100 K Launcher Radiator, LAC 4 40.973 300 kW Flare, 10 MW, 60 s Launcher 0 LAC Turreted Autocannon, .50 BMG, MV 10 88.273 null 0.314 LAC Nose Hydrogen Tank 1 55.212 null 0 LAC Nose Oxygen Tank 1 65.472 null 0 Default Remote Control 1 75.732 null 0 Dumb NEFP Shell Turreted Cannon, LAC 2 94.088 null 0 LAC Tail Spacer 1 25.041 null 0 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 1 80.862 null 0 LAC Laser Radiator 4 43.439 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 0 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 10 96.927 null 0.314 20000x 38mm Cannon Round 1 83.427 null 0 LAC Tail Diameter Spacer 1 12.02 null 0 200x Dumb NEFP Shell 1 78.297 null 0 Armor ArmorLayers Lithium 0.0005 0 0 1 1 Spider Silk 0.008 0.01 0 1 1 Amorphous Carbon 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Gold 0.0005 0.01 0.518 0.542 1
deltav This is what I was doing with detached laser turrets. The counterlaser system adds nine people to the crew manifest.
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Post by Dhan on Mar 22, 2017 6:13:54 GMT
The comrades from the People's Shipyard at Deimos present the LAC of Blessed Acceleration: PowerThe LAC is supplied with 744 kW of electrical power, from a trio of 1 tonne strontium-90 RTGs, which operate at 56.1% efficiency and reject heat at 370 K. It was determined in initial design meetings that the most severe constraint for this ship would be the power budget, due to the unavailability of atomic fission reactors. Therefore, as with all ship systems, where it was possible to spend mass or less-than-ridiculous amounts of money to gain efficiency, this was done. Heat is rejected through slightly-armored calcium radiators. Unarmored lithium radiators were specified initially, but these were found to be too easily shot off or boiled away by high yield atomic bombs, such as are carried by the Devastator missile. Also calcium looks cooler (even though the realism of that color is questionable). Like all radiators on the ship, they are quadruple redundant. The design team considered using a water ice or ammonia heatsink to allow the radiators to be battened down during combat. This would allow a substantial reduction in radiator mass and considerably improve survivability (even with the armor and 4-redudance, the radiators are the weakest link on the ship). However, no ships have been built with this feature before, and it was thought imprudent to start experimenting with core ship systems during wartime. Propulsion
Seven 4.5 km/s hydrolox engines accelerate the ship at slightly over 1 g. Hydrolox was chosen because it offers the best exhaust velocity of the non-fluorine fuel chemistries, and propellant density is better than methalox (according to the chart in the standards thread). Due to the embargo on boron imports and the recent sabotage of our bulk diamond manufacturing station, the engine thrust chambers are made of amorphous carbon. Armor
The original armor plan called for 4 m of graphite aerogel, with an amorphous carbon backstop and spider silk spall liner. However, simulator testing revealed that, if a gun turret were destroyed, the resulting hole in the armor could permit bullets to enter the hull at highly oblique angles, and make their way through the backstop (which, honestly, can barely stop a stray fart), and into the crew compartment. Therefore, the graphogel armor was split into two layers of 2 m, each topped with 1 cm of lithium. With this design change, if a turret is destroyed, bullets that don't come in nearly perpendicular to the hull will strike the second graphogel layer. And the only thing directly under the gun turrets is the nose hydrogen tank, which is much less mission-critical than the crew compartment. Fortuitously, the double-stuffed whipple structure also proved somewhat more effective at stopping projectiles than the graphogel alone. A 500 micron lithium layer was placed behind the armor, in order to detect penetrations with the armor status overlay (anything that damaged 500 um of lithium almost certainly went through it). Gun turrets are armored with 10 cm of amorphous carbon. This is reduced to 7 cm of amorphous carbon on the counterlaser turrets, for faster traverse. Main laser turrets have a perfunctory 200 microns of nitrile rubber. Due to their large size, heavier armor would balloon cost, mass, and most importantly, traverse power requirement. To deal with the hole left in the armor when the main lasers are inevitably shot off, they are placed around a spacer at the rear of the fuselage, just ahead of the engines, which are sparsely placed and multiply redundant. Armament
The primary weapon system is a ring of 10 medium velocity machine guns, firing a 42 g projectile at 2.4 km/s. This weight is a homage to a widely renowned caliber from Earth's history, the ".50 BMG", and has proven very effective against common USTA armor schemes in testing. Our ship's guns, freed from the constraint of operation within an atmosphere, use a considerably larger diameter barrel and fire their projectiles at considerably greater velocity than the original. The rate of fire of each gun is 1800 rounds per minute. In order to strike fear into the hearts of the enemy and sow chaos in battle, the primary weapon system is supplemented by a pair of large-bore cannons, which fire a shell containing a 1 kt plutonium bomb augmented with a 1 kg osmium plate. The plate is intended to penetrate the heaviest of armor when propelled by the nuclear blast, although this effect has not been tested. RFP Intelligence has informed us that the radar signal from the proximity fuze will cause the USTA's point-defense software to treat the shell as a very high priority target. This information has proven accurate in a few engagements with USTA vessels, where the atomic cannons were used to great effect. For defense against drone attacks, the LAC of Blessed Acceleration also mounts four high efficiency (6.14%) 150 kW lasers, feeding four 2 1/3 meter radius turreted mirror. These lasers can bring 10.1 MW/m to bear at 100 km. In case the enemy fields lasers of their own, the LAC has a 100 kW counterlaser, feeding ten 5 cm radius mirrors mounted in fast-traverse turrets. Laser generators are mounted separately from the turrets, which allows them to be placed in otherwise unused space in the nose of the vessel. Unfortunately, mere days before the LAC was scheduled to go into volume production, an internal audit revealed that the chief laser engineer had foisted the task of designing the lasers off onto her apprentice, who had specified diamond arc lamp envelopes. The chief engineer subsequently discovered a number of poorly encrypted emails in the apprentice's inbox, which proved he had been in the pay of the USTA for months. If this vile sabotage had not been discovered, hundreds of tonnes of precious diamond would have been diverted from front-line vessels. The lasers were quickly redesigned to use fused quartz arc lamps, which reduced their efficiency. That is, if we are to believe the saboteur's claim of 8.44% with the diamond envelopes. The war department will be pleased to know that the traitorous apprentice has been transported to the Phobos penal colony. Special FacilitiesFor defense against missiles which are too heavily armored or too numerous to be shot down with the main lasers, the LAC carries a number of 60-second flares. The otherwise very constraining RTG power budget was actually quite beneficial here, because it allowed the use of very small 10 MW flares. In the unfortunate eventuality that that the enemy manages to kill or incapacitate the ship's human crew, the LAC of Blessed Acceleration is equipped with a small AI combat unit which will allow the vessel to avenge it's own crew, autonomously or under the direction of other ships in the same fleet. This capability was found useful in simulation with early design iterations of the ship, but has not been necessary in the field. And of course, as specified, the LAC of Blessed Acceleration has spare bunks for a complement of 30 marines. DoctrineProspective captains of this vessel class are advised as follows: 1. Always orient the nose of the ship toward the enemy, or even better, toward the direction of incoming fire. Never order your helmsman to orient the ship "broadside". Unfortunately, training at the academy has been rather lax during the war, and he will likely not understand which side of the ship that is on a vessel of this configuration. He will deprive you of the use of half your weapons, and he may expose the flat sides of your radiators, or allow enemy fire to strike the armor normal to its surface. In that case, the effectiveness of the armor is not guaranteed. He may also use up your propellant very quickly, by continuously trying to keep the side of your ship pointed at the enemy, while at the same time accelerating perpendicular to the sight line to the enemy. 2. Because of the small electrical power budget afforded your ship, your weapons are mostly chemical, and their muzzle velocities are quite low. They are, however, exceedingly accurate. It will probably be necessary to override the targeting computer, both to open fire earlier and, in engagements with multiple enemy ships, to cycle the computer between targets. Unless your ship is closing with the enemy very quickly, you can probably dispense enough bullets to shred his hull before the first ones arrive. 3. If an enemy vessel is equipped with lasers, it is best to leave the lens caps on your main lasers until the counterlaser turrets have achieved laser superiority. The enemy's fire control software is, unfortunately, somewhat more sophisticated than ours, and will focus fire on vulnerable lasers automatically. Yours, however, will not, so you should order your gunners to do so manually. 4. If the enemy launches missiles against you, it is suggested that you attempt to destroy them with the main lasers. If the missiles come within 60 seconds of intercept, it is imperative that you launch a flare immediately. Flares are much cheaper than lives, and your ship carries plenty of flares for any engagement. If you suspect that the missiles may be carrying high-yield warheads, you should keep attempting to lase them until about 10 s prior to intercept, then retract the radiators and hope for the best. Your ship is armored against nuke flash, but the radiators are comparatively delicate. Don't worry too much about overheating the RTGs. They are designed to operate significantly below the melting point of the fuel pellet, so you have about a minute and a half to get the radiators back out. 5. Drones can be easily dispatched by targeting their weapons with your main lasers, but after doing so you should order your helmsman to thrust a little, in order to get out of the way of any bullets they may have fired before their demise. 6. Do try to dodge incoming fire. You've got lots of acceleration. 7. If you find yourself heavily outgunned, it may be useful to open up with the atomic cannons at extreme range. The enemy may become preoccupied with the incoming shells, and a lucky hit can take out their more dangerous weapons before they start shooting. 8. If, on the other hand, you find yourself facing a less threatening opponent, the main lasers work quite well for disabling a vessels engines, rendering it unable to evade bullets from the machine guns. Or if you wish to capture the enemy vessel mostly intact, you can use the threat of the machine guns to order the crew to stand down while you disable the rest of their weapons and board them. We envision that, when the war is over these LACs can be re-purposed for anti-smuggling and other police operations. ScoringThis ship, with proper piloting, is capable of completing all three difficulty levels on its own. Since it only requires one ship, instead of three, I count the extras as undamaged. Level 1: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 2: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 3: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Additional friendly ships (-2): 8 =P Total: 18 Grand Total: 38 The crew of the RSF Plasma Wake observe the icy remains of Admiral Voitenko's 1/2 Gc fleet: Code:
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
FlareModule 10.0 MW Nitrocellulose Flare, 60 s UsesCustomName true ArmorComposition Lithium ArmorThickness_m 0.001 Cylinder_m 0.1307 2.02 Pyrotechnic CombustionReaction Nitrocellulose DelayComposition Lithium DelayCompositionMassFraction 0.213
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
CombustionRocketModule LAC Engine, Hydrolox UsesCustomName true Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Amorphous Carbon ThroatRadius_m 0.035 ChamberWallThickness_m 0.061 ChamberContractionRatio 4.9 NozzleExpansionRatio 680 NozzleExpansionAngle_degrees 15 RegenerativeCooling_Percent 0 Injector Composition Polyethylene PumpRadius_m 0.35 RotationalSpeed_RPM 261 Gimbal InnerRadius_m 0.56 ArmorComposition Amorphous Carbon ArmorThickness_m 0.015 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 58000 GimbalAngle_degrees 22.5
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 81 Decks 9 StructureMaterial Calcium ShellThickness_m 0.01
RadioisotopeThermoelectricGeneratorModule 248 kW LAC RTG UsesCustomName true FuelPellet Fuel Strontium-90 Mass_kg 1000 Height_m 0.01 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.015 ExitTemperature_K 370 Coolant Ethane Turbopump Composition Lithium PumpRadius_m 0.01 RotationalSpeed_RPM 280
PropellantTankModule Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 12000 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
PropellantTankModule Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 95280 HeightToRadiusRatio 9.9 AdditionalArmorThickness_m 0
RadiatorModule LAC RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 23.5 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0 BackTaper_radians 0.117 SurfaceFinish null
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
SpacerModule LAC Bow Spacer UsesCustomName true Dimensions_m 0 18.5
RadiatorModule LAC Environmental Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 0.1 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0.117 BackTaper_radians 0 SurfaceFinish null
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
RadiatorModule 1100 K Launcher Radiator, LAC UsesCustomName true Composition Calcium PanelWidth_m 0.25 Height_m 0.2 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 2 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
PropellantTankModule LAC Nose Hydrogen Tank UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 35000 HeightToRadiusRatio 1.2 AdditionalArmorThickness_m 0
PropellantTankModule LAC Nose Oxygen Tank UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 2.779e+005 HeightToRadiusRatio 2.9 AdditionalArmorThickness_m 0
SpacerModule LAC Tail Spacer UsesCustomName true Dimensions_m 0 10
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
SpacerModule LAC Tail Diameter Spacer UsesCustomName true Dimensions_m 6.75 0
CraftBlueprint Flare, 10 MW, 60 s Modules 10.0 MW Nitrocellulose Flare, 60 s 1 0 null 0 Armor
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
StandaloneLaserMountModule 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km Turret InnerRadius_m 4.945 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.0002 MomentumWheels Composition Cobalt RotationalSpeed_RPM 4.5 TargetsShips true TargetsShots true
StandaloneLaserMountModule 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC Turret InnerRadius_m 0.153 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.07 MomentumWheels Composition Iridium RotationalSpeed_RPM 740 TargetsShips true TargetsShots true
AmmoModule 20000x 38mm Cannon Round UsesCustomName false SuppliedModule LAC Turreted Autocannon, .50 BMG, MV AmmoBay Capacity 20000 Stacks 20 ArmorComposition Spider Silk ArmorThickness_m 0.05
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
CarrierModule 300 kW Flare, 10 MW, 60 s Launcher UsesCustomName false Payload Flare, 10 MW, 60 s Launcher Stator Aluminum Nickel Cobalt TrackLength_m 0.95 StatorDepth_m 0.51 Forcer Calcium ForcerRadius_m 0.084 Coolant Ethane PowerConsumption_W 3e+005 CoolantTurbopump Composition Calcium PumpRadius_m 0.02 RotationalSpeed_RPM 17 CoolantInletTemperature_K 1100 ArmorMaterial Lithium ArmorThickness_m 0.001 AttachedAmmoBay Capacity 20 Stacks 1 EngagementRange_km 0 TargetsShips false TargetsShots false
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
AmmoModule 200x Dumb NEFP Shell UsesCustomName false SuppliedModule Dumb NEFP Shell Turreted Cannon, LAC AmmoBay Capacity 200 Stacks 4 ArmorComposition Spider Silk ArmorThickness_m 0.005
CraftBlueprint LAC of Blessed Acceleration Modules LAC Engine, Hydrolox 7 0 null 0 LAC Crew Module 1 52.967 null 0 248 kW LAC RTG 3 37.561 null 0 Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox 19 50.082 null 0 Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox 19 50.723 null 0 LAC RTG Radiator 4 19.874 248 kW LAC RTG 0 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 4 70.602 null 0 LAC Bow Spacer 1 85.992 null 0 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 4 9.4472 null 0.7854 300 kW Flare, 10 MW, 60 s Launcher 1 10.513 null 1.43 LAC Environmental Radiator 4 34.967 LAC Crew Module 0 LAC Laser Radiator 4 38.551 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 0 1100 K Launcher Radiator, LAC 4 40.973 300 kW Flare, 10 MW, 60 s Launcher 0 LAC Turreted Autocannon, .50 BMG, MV 10 88.273 null 0.314 LAC Nose Hydrogen Tank 1 55.212 null 0 LAC Nose Oxygen Tank 1 65.472 null 0 Default Remote Control 1 75.732 null 0 Dumb NEFP Shell Turreted Cannon, LAC 2 94.088 null 0 LAC Tail Spacer 1 25.041 null 0 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 1 80.862 null 0 LAC Laser Radiator 4 43.439 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 0 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 10 96.927 null 0.314 20000x 38mm Cannon Round 1 83.427 null 0 LAC Tail Diameter Spacer 1 12.02 null 0 200x Dumb NEFP Shell 1 78.297 null 0 Armor ArmorLayers Lithium 0.0005 0 0 1 1 Spider Silk 0.008 0.01 0 1 1 Amorphous Carbon 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Gold 0.0005 0.01 0.518 0.542 1
deltav This is what I was doing with detached laser turrets. The counterlaser system adds nine people to the crew manifest. But comrade, why do we need a decorative layer on the inside?
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Post by vegemeister on Mar 22, 2017 6:50:36 GMT
The comrades from the People's Shipyard at Deimos present the LAC of Blessed Acceleration: PowerThe LAC is supplied with 744 kW of electrical power, from a trio of 1 tonne strontium-90 RTGs, which operate at 56.1% efficiency and reject heat at 370 K. It was determined in initial design meetings that the most severe constraint for this ship would be the power budget, due to the unavailability of atomic fission reactors. Therefore, as with all ship systems, where it was possible to spend mass or less-than-ridiculous amounts of money to gain efficiency, this was done. Heat is rejected through slightly-armored calcium radiators. Unarmored lithium radiators were specified initially, but these were found to be too easily shot off or boiled away by high yield atomic bombs, such as are carried by the Devastator missile. Also calcium looks cooler (even though the realism of that color is questionable). Like all radiators on the ship, they are quadruple redundant. The design team considered using a water ice or ammonia heatsink to allow the radiators to be battened down during combat. This would allow a substantial reduction in radiator mass and considerably improve survivability (even with the armor and 4-redudance, the radiators are the weakest link on the ship). However, no ships have been built with this feature before, and it was thought imprudent to start experimenting with core ship systems during wartime. Propulsion
Seven 4.5 km/s hydrolox engines accelerate the ship at slightly over 1 g. Hydrolox was chosen because it offers the best exhaust velocity of the non-fluorine fuel chemistries, and propellant density is better than methalox (according to the chart in the standards thread). Due to the embargo on boron imports and the recent sabotage of our bulk diamond manufacturing station, the engine thrust chambers are made of amorphous carbon. Armor
The original armor plan called for 4 m of graphite aerogel, with an amorphous carbon backstop and spider silk spall liner. However, simulator testing revealed that, if a gun turret were destroyed, the resulting hole in the armor could permit bullets to enter the hull at highly oblique angles, and make their way through the backstop (which, honestly, can barely stop a stray fart), and into the crew compartment. Therefore, the graphogel armor was split into two layers of 2 m, each topped with 1 cm of lithium. With this design change, if a turret is destroyed, bullets that don't come in nearly perpendicular to the hull will strike the second graphogel layer. And the only thing directly under the gun turrets is the nose hydrogen tank, which is much less mission-critical than the crew compartment. Fortuitously, the double-stuffed whipple structure also proved somewhat more effective at stopping projectiles than the graphogel alone. A 500 micron lithium layer was placed behind the armor, in order to detect penetrations with the armor status overlay (anything that damaged 500 um of lithium almost certainly went through it). Gun turrets are armored with 10 cm of amorphous carbon. This is reduced to 7 cm of amorphous carbon on the counterlaser turrets, for faster traverse. Main laser turrets have a perfunctory 200 microns of nitrile rubber. Due to their large size, heavier armor would balloon cost, mass, and most importantly, traverse power requirement. To deal with the hole left in the armor when the main lasers are inevitably shot off, they are placed around a spacer at the rear of the fuselage, just ahead of the engines, which are sparsely placed and multiply redundant. Armament
The primary weapon system is a ring of 10 medium velocity machine guns, firing a 42 g projectile at 2.4 km/s. This weight is a homage to a widely renowned caliber from Earth's history, the ".50 BMG", and has proven very effective against common USTA armor schemes in testing. Our ship's guns, freed from the constraint of operation within an atmosphere, use a considerably larger diameter barrel and fire their projectiles at considerably greater velocity than the original. The rate of fire of each gun is 1800 rounds per minute. In order to strike fear into the hearts of the enemy and sow chaos in battle, the primary weapon system is supplemented by a pair of large-bore cannons, which fire a shell containing a 1 kt plutonium bomb augmented with a 1 kg osmium plate. The plate is intended to penetrate the heaviest of armor when propelled by the nuclear blast, although this effect has not been tested. RFP Intelligence has informed us that the radar signal from the proximity fuze will cause the USTA's point-defense software to treat the shell as a very high priority target. This information has proven accurate in a few engagements with USTA vessels, where the atomic cannons were used to great effect. For defense against drone attacks, the LAC of Blessed Acceleration also mounts four high efficiency (6.14%) 150 kW lasers, feeding four 2 1/3 meter radius turreted mirror. These lasers can bring 10.1 MW/m to bear at 100 km. In case the enemy fields lasers of their own, the LAC has a 100 kW counterlaser, feeding ten 5 cm radius mirrors mounted in fast-traverse turrets. Laser generators are mounted separately from the turrets, which allows them to be placed in otherwise unused space in the nose of the vessel. Unfortunately, mere days before the LAC was scheduled to go into volume production, an internal audit revealed that the chief laser engineer had foisted the task of designing the lasers off onto her apprentice, who had specified diamond arc lamp envelopes. The chief engineer subsequently discovered a number of poorly encrypted emails in the apprentice's inbox, which proved he had been in the pay of the USTA for months. If this vile sabotage had not been discovered, hundreds of tonnes of precious diamond would have been diverted from front-line vessels. The lasers were quickly redesigned to use fused quartz arc lamps, which reduced their efficiency. That is, if we are to believe the saboteur's claim of 8.44% with the diamond envelopes. The war department will be pleased to know that the traitorous apprentice has been transported to the Phobos penal colony. Special FacilitiesFor defense against missiles which are too heavily armored or too numerous to be shot down with the main lasers, the LAC carries a number of 60-second flares. The otherwise very constraining RTG power budget was actually quite beneficial here, because it allowed the use of very small 10 MW flares. In the unfortunate eventuality that that the enemy manages to kill or incapacitate the ship's human crew, the LAC of Blessed Acceleration is equipped with a small AI combat unit which will allow the vessel to avenge it's own crew, autonomously or under the direction of other ships in the same fleet. This capability was found useful in simulation with early design iterations of the ship, but has not been necessary in the field. And of course, as specified, the LAC of Blessed Acceleration has spare bunks for a complement of 30 marines. DoctrineProspective captains of this vessel class are advised as follows: 1. Always orient the nose of the ship toward the enemy, or even better, toward the direction of incoming fire. Never order your helmsman to orient the ship "broadside". Unfortunately, training at the academy has been rather lax during the war, and he will likely not understand which side of the ship that is on a vessel of this configuration. He will deprive you of the use of half your weapons, and he may expose the flat sides of your radiators, or allow enemy fire to strike the armor normal to its surface. In that case, the effectiveness of the armor is not guaranteed. He may also use up your propellant very quickly, by continuously trying to keep the side of your ship pointed at the enemy, while at the same time accelerating perpendicular to the sight line to the enemy. 2. Because of the small electrical power budget afforded your ship, your weapons are mostly chemical, and their muzzle velocities are quite low. They are, however, exceedingly accurate. It will probably be necessary to override the targeting computer, both to open fire earlier and, in engagements with multiple enemy ships, to cycle the computer between targets. Unless your ship is closing with the enemy very quickly, you can probably dispense enough bullets to shred his hull before the first ones arrive. 3. If an enemy vessel is equipped with lasers, it is best to leave the lens caps on your main lasers until the counterlaser turrets have achieved laser superiority. The enemy's fire control software is, unfortunately, somewhat more sophisticated than ours, and will focus fire on vulnerable lasers automatically. Yours, however, will not, so you should order your gunners to do so manually. 4. If the enemy launches missiles against you, it is suggested that you attempt to destroy them with the main lasers. If the missiles come within 60 seconds of intercept, it is imperative that you launch a flare immediately. Flares are much cheaper than lives, and your ship carries plenty of flares for any engagement. If you suspect that the missiles may be carrying high-yield warheads, you should keep attempting to lase them until about 10 s prior to intercept, then retract the radiators and hope for the best. Your ship is armored against nuke flash, but the radiators are comparatively delicate. Don't worry too much about overheating the RTGs. They are designed to operate significantly below the melting point of the fuel pellet, so you have about a minute and a half to get the radiators back out. 5. Drones can be easily dispatched by targeting their weapons with your main lasers, but after doing so you should order your helmsman to thrust a little, in order to get out of the way of any bullets they may have fired before their demise. 6. Do try to dodge incoming fire. You've got lots of acceleration. 7. If you find yourself heavily outgunned, it may be useful to open up with the atomic cannons at extreme range. The enemy may become preoccupied with the incoming shells, and a lucky hit can take out their more dangerous weapons before they start shooting. 8. If, on the other hand, you find yourself facing a less threatening opponent, the main lasers work quite well for disabling a vessels engines, rendering it unable to evade bullets from the machine guns. Or if you wish to capture the enemy vessel mostly intact, you can use the threat of the machine guns to order the crew to stand down while you disable the rest of their weapons and board them. We envision that, when the war is over these LACs can be re-purposed for anti-smuggling and other police operations. ScoringThis ship, with proper piloting, is capable of completing all three difficulty levels on its own. Since it only requires one ship, instead of three, I count the extras as undamaged. Level 1: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 2: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 3: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Additional friendly ships (-2): 8 =P Total: 18 Grand Total: 38 The crew of the RSF Plasma Wake observe the icy remains of Admiral Voitenko's 1/2 Gc fleet: Code:
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
FlareModule 10.0 MW Nitrocellulose Flare, 60 s UsesCustomName true ArmorComposition Lithium ArmorThickness_m 0.001 Cylinder_m 0.1307 2.02 Pyrotechnic CombustionReaction Nitrocellulose DelayComposition Lithium DelayCompositionMassFraction 0.213
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
CombustionRocketModule LAC Engine, Hydrolox UsesCustomName true Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Amorphous Carbon ThroatRadius_m 0.035 ChamberWallThickness_m 0.061 ChamberContractionRatio 4.9 NozzleExpansionRatio 680 NozzleExpansionAngle_degrees 15 RegenerativeCooling_Percent 0 Injector Composition Polyethylene PumpRadius_m 0.35 RotationalSpeed_RPM 261 Gimbal InnerRadius_m 0.56 ArmorComposition Amorphous Carbon ArmorThickness_m 0.015 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 58000 GimbalAngle_degrees 22.5
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 81 Decks 9 StructureMaterial Calcium ShellThickness_m 0.01
RadioisotopeThermoelectricGeneratorModule 248 kW LAC RTG UsesCustomName true FuelPellet Fuel Strontium-90 Mass_kg 1000 Height_m 0.01 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.015 ExitTemperature_K 370 Coolant Ethane Turbopump Composition Lithium PumpRadius_m 0.01 RotationalSpeed_RPM 280
PropellantTankModule Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 12000 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
PropellantTankModule Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 95280 HeightToRadiusRatio 9.9 AdditionalArmorThickness_m 0
RadiatorModule LAC RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 23.5 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0 BackTaper_radians 0.117 SurfaceFinish null
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
SpacerModule LAC Bow Spacer UsesCustomName true Dimensions_m 0 18.5
RadiatorModule LAC Environmental Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 0.1 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0.117 BackTaper_radians 0 SurfaceFinish null
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
RadiatorModule 1100 K Launcher Radiator, LAC UsesCustomName true Composition Calcium PanelWidth_m 0.25 Height_m 0.2 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 2 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
PropellantTankModule LAC Nose Hydrogen Tank UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 35000 HeightToRadiusRatio 1.2 AdditionalArmorThickness_m 0
PropellantTankModule LAC Nose Oxygen Tank UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 2.779e+005 HeightToRadiusRatio 2.9 AdditionalArmorThickness_m 0
SpacerModule LAC Tail Spacer UsesCustomName true Dimensions_m 0 10
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
SpacerModule LAC Tail Diameter Spacer UsesCustomName true Dimensions_m 6.75 0
CraftBlueprint Flare, 10 MW, 60 s Modules 10.0 MW Nitrocellulose Flare, 60 s 1 0 null 0 Armor
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
StandaloneLaserMountModule 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km Turret InnerRadius_m 4.945 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.0002 MomentumWheels Composition Cobalt RotationalSpeed_RPM 4.5 TargetsShips true TargetsShots true
StandaloneLaserMountModule 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC Turret InnerRadius_m 0.153 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.07 MomentumWheels Composition Iridium RotationalSpeed_RPM 740 TargetsShips true TargetsShots true
AmmoModule 20000x 38mm Cannon Round UsesCustomName false SuppliedModule LAC Turreted Autocannon, .50 BMG, MV AmmoBay Capacity 20000 Stacks 20 ArmorComposition Spider Silk ArmorThickness_m 0.05
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
CarrierModule 300 kW Flare, 10 MW, 60 s Launcher UsesCustomName false Payload Flare, 10 MW, 60 s Launcher Stator Aluminum Nickel Cobalt TrackLength_m 0.95 StatorDepth_m 0.51 Forcer Calcium ForcerRadius_m 0.084 Coolant Ethane PowerConsumption_W 3e+005 CoolantTurbopump Composition Calcium PumpRadius_m 0.02 RotationalSpeed_RPM 17 CoolantInletTemperature_K 1100 ArmorMaterial Lithium ArmorThickness_m 0.001 AttachedAmmoBay Capacity 20 Stacks 1 EngagementRange_km 0 TargetsShips false TargetsShots false
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
AmmoModule 200x Dumb NEFP Shell UsesCustomName false SuppliedModule Dumb NEFP Shell Turreted Cannon, LAC AmmoBay Capacity 200 Stacks 4 ArmorComposition Spider Silk ArmorThickness_m 0.005
CraftBlueprint LAC of Blessed Acceleration Modules LAC Engine, Hydrolox 7 0 null 0 LAC Crew Module 1 52.967 null 0 248 kW LAC RTG 3 37.561 null 0 Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox 19 50.082 null 0 Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox 19 50.723 null 0 LAC RTG Radiator 4 19.874 248 kW LAC RTG 0 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 4 70.602 null 0 LAC Bow Spacer 1 85.992 null 0 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 4 9.4472 null 0.7854 300 kW Flare, 10 MW, 60 s Launcher 1 10.513 null 1.43 LAC Environmental Radiator 4 34.967 LAC Crew Module 0 LAC Laser Radiator 4 38.551 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 0 1100 K Launcher Radiator, LAC 4 40.973 300 kW Flare, 10 MW, 60 s Launcher 0 LAC Turreted Autocannon, .50 BMG, MV 10 88.273 null 0.314 LAC Nose Hydrogen Tank 1 55.212 null 0 LAC Nose Oxygen Tank 1 65.472 null 0 Default Remote Control 1 75.732 null 0 Dumb NEFP Shell Turreted Cannon, LAC 2 94.088 null 0 LAC Tail Spacer 1 25.041 null 0 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 1 80.862 null 0 LAC Laser Radiator 4 43.439 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 0 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 10 96.927 null 0.314 20000x 38mm Cannon Round 1 83.427 null 0 LAC Tail Diameter Spacer 1 12.02 null 0 200x Dumb NEFP Shell 1 78.297 null 0 Armor ArmorLayers Lithium 0.0005 0 0 1 1 Spider Silk 0.008 0.01 0 1 1 Amorphous Carbon 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Gold 0.0005 0.01 0.518 0.542 1
deltav This is what I was doing with detached laser turrets. The counterlaser system adds nine people to the crew manifest. But comrade, why do we need a decorative layer on the inside? Not decorative.
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Post by Dhan on Mar 22, 2017 6:57:18 GMT
Ah interesting. Just noticed all the text following the screenshots. Probably would have helped if I read that first
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ndeo
Junior Member
It's not a flashlight... It's a High-frequency relativistic boson cannon
Posts: 67
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Post by ndeo on Mar 22, 2017 7:47:51 GMT
One of my failed prototypes, a full broadside ship with 50 25ms conventional guns, that can destroy capital ships almost instantly with the opening salvo. Too much emphasis was placed on the "assault" part of the ship. With 1.32g of acceleration, it easily dodges projectiles fired from ships and drones. Levels 1 and 2 were effortlessly cleared with a full 10 rating, but with level 3 the ships ran out of Delta-V while in combat and several crew modules were destroyed. The ship should also probably be scaled down. Totally not because I got lazy and slapped on 50 guns or anything Most parts are stock, excluding the guns and thrusterLow is relative -- 1/4 my standard gun Firepower!Didn't even stand a chanceLevel 3 Modules: The only important part - the gun
ConventionalGunModule 26mm Cannon Low-ROF UsesCustomName true Barrel Composition Martensitic Stainless Steel Length_m 0.62 Thickness_m 0.0059 Propellant Composition Cyclonite Mass_kg 0.0076 GrainRadius_m 0.00038 Projectile Composition Osmium BoreRadius_m 0.013 Mass_kg 0.003 Tracer Iridium Payload null Loader PowerConsumption_W 4000 Turret InnerRadius_m 0.08 Extruded true ArmorComposition Aramid Fiber ArmorThickness_m 0.03 MomentumWheels Composition Osmium RotationalSpeed_RPM 2400 TargetsShips true TargetsShots true The ship that could probably be replaced with a much better one
CraftBlueprint Metalstorm LAC Modules 4.03 km/s LOX LH2 Gimballed Combustion Rocket 20 0 null 0 400 t Oxygen Tank 4 -0.625 null 0 35 Crew Module 1 29.541 null 0 26mm Cannon Low-ROF 1 26.681 null 0 26mm Cannon Low-ROF 1 27.681 null 0 26mm Cannon Low-ROF 1 28.681 null 0 26mm Cannon Low-ROF 1 29.681 null 0 26mm Cannon Low-ROF 1 30.681 null 0 26mm Cannon Low-ROF 1 31.681 null 0 26mm Cannon Low-ROF 1 32.681 null 0 26mm Cannon Low-ROF 1 33.681 null 0 26mm Cannon Low-ROF 1 34.681 null 0 26mm Cannon Low-ROF 1 35.681 null 0 26mm Cannon Low-ROF 1 36.681 null 0 26mm Cannon Low-ROF 1 37.681 null 0 26mm Cannon Low-ROF 1 38.681 null 0 26mm Cannon Low-ROF 1 39.681 null 0 26mm Cannon Low-ROF 1 40.681 null 0 26mm Cannon Low-ROF 1 41.681 null 0 26mm Cannon Low-ROF 1 42.681 null 0 26mm Cannon Low-ROF 1 43.681 null 0 26mm Cannon Low-ROF 1 44.681 null 0 26mm Cannon Low-ROF 1 45.681 null 0 26mm Cannon Low-ROF 1 46.681 null 0 26mm Cannon Low-ROF 1 47.681 null 0 26mm Cannon Low-ROF 1 48.681 null 0 26mm Cannon Low-ROF 1 49.681 null 0 26mm Cannon Low-ROF 1 50.681 null 0 26mm Cannon Low-ROF 1 51.681 null 0 26mm Cannon Low-ROF 1 52.681 null 0 26mm Cannon Low-ROF 1 53.681 null 0 26mm Cannon Low-ROF 1 54.681 null 0 26mm Cannon Low-ROF 1 55.681 null 0 26mm Cannon Low-ROF 1 56.681 null 0 26mm Cannon Low-ROF 1 57.681 null 0 26mm Cannon Low-ROF 1 58.681 null 0 26mm Cannon Low-ROF 1 59.681 null 0 26mm Cannon Low-ROF 1 60.681 null 0 26mm Cannon Low-ROF 1 61.681 null 0 26mm Cannon Low-ROF 1 62.681 null 0 26mm Cannon Low-ROF 1 63.681 null 0 26mm Cannon Low-ROF 1 64.681 null 0 26mm Cannon Low-ROF 1 65.681 null 0 26mm Cannon Low-ROF 1 66.681 null 0 26mm Cannon Low-ROF 1 67.681 null 0 26mm Cannon Low-ROF 1 68.681 null 0 26mm Cannon Low-ROF 1 69.681 null 0 26mm Cannon Low-ROF 1 70.681 null 0 26mm Cannon Low-ROF 1 71.681 null 0 26mm Cannon Low-ROF 1 72.681 null 0 26mm Cannon Low-ROF 1 73.681 null 0 26mm Cannon Low-ROF 1 74.681 null 0 26mm Cannon Low-ROF 1 75.681 null 0 101 kW Radioisotope Thermoelectric Generator 2 -0.25 null 0 6x2 Silicon Dioxide Radiator 3 6.7399 101 kW Radioisotope Thermoelectric Generator 0 30000x 26mm Cannon Round 2 20 75.681 null 0 2x1 Silicon Carbide Radiator 3 9.5665 101 kW Radioisotope Thermoelectric Generator 0 35 Crew Module 1 30.541 null 0 20 Crew Module 1 30.541 null 0 3x1 Silicon Dioxide Radiator 3 8.3448 20 Crew Module 0 6x3 Aluminum Radiator 3 4.45 35 Crew Module 0 100 t Hydrogen Tank 2 -0.8125 null 0 Armor ArmorLayers Nitrile Rubber 0.01 0 0 1 1 Graphite Aerogel 0.8 0 0 1 1 Titanium 0.01 0 0 1 1
Thruster
CombustionRocketModule 4.03 km/s LOX LH2 Gimballed Combustion Rocket UsesCustomName false Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Tungsten ThroatRadius_m 0.14 ChamberWallThickness_m 0.0032 ChamberContractionRatio 4.2 NozzleExpansionRatio 59 NozzleExpansionAngle_degrees 16 RegenerativeCooling_Percent 0.02 Injector Composition UHMWPE PumpRadius_m 0.32 RotationalSpeed_RPM 130 Gimbal InnerRadius_m 0.54 ArmorComposition Titanium ArmorThickness_m 0.001 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 64000 GimbalAngle_degrees 15
Ammo
AmmoModule 30000x 26mm Cannon Round 2 UsesCustomName false SuppliedModule 26mm Cannon Low-ROF AmmoBay Capacity 30000 Stacks 100 ArmorComposition Aluminum ArmorThickness_m 0.005
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Post by Durandal on Mar 22, 2017 13:05:09 GMT
The comrades from the People's Shipyard at Deimos present the LAC of Blessed Acceleration: PowerThe LAC is supplied with 744 kW of electrical power, from a trio of 1 tonne strontium-90 RTGs, which operate at 56.1% efficiency and reject heat at 370 K. It was determined in initial design meetings that the most severe constraint for this ship would be the power budget, due to the unavailability of atomic fission reactors. Therefore, as with all ship systems, where it was possible to spend mass or less-than-ridiculous amounts of money to gain efficiency, this was done. Heat is rejected through slightly-armored calcium radiators. Unarmored lithium radiators were specified initially, but these were found to be too easily shot off or boiled away by high yield atomic bombs, such as are carried by the Devastator missile. Also calcium looks cooler (even though the realism of that color is questionable). Like all radiators on the ship, they are quadruple redundant. The design team considered using a water ice or ammonia heatsink to allow the radiators to be battened down during combat. This would allow a substantial reduction in radiator mass and considerably improve survivability (even with the armor and 4-redudance, the radiators are the weakest link on the ship). However, no ships have been built with this feature before, and it was thought imprudent to start experimenting with core ship systems during wartime. Propulsion
Seven 4.5 km/s hydrolox engines accelerate the ship at slightly over 1 g. Hydrolox was chosen because it offers the best exhaust velocity of the non-fluorine fuel chemistries, and propellant density is better than methalox (according to the chart in the standards thread). Due to the embargo on boron imports and the recent sabotage of our bulk diamond manufacturing station, the engine thrust chambers are made of amorphous carbon. Armor
The original armor plan called for 4 m of graphite aerogel, with an amorphous carbon backstop and spider silk spall liner. However, simulator testing revealed that, if a gun turret were destroyed, the resulting hole in the armor could permit bullets to enter the hull at highly oblique angles, and make their way through the backstop (which, honestly, can barely stop a stray fart), and into the crew compartment. Therefore, the graphogel armor was split into two layers of 2 m, each topped with 1 cm of lithium. With this design change, if a turret is destroyed, bullets that don't come in nearly perpendicular to the hull will strike the second graphogel layer. And the only thing directly under the gun turrets is the nose hydrogen tank, which is much less mission-critical than the crew compartment. Fortuitously, the double-stuffed whipple structure also proved somewhat more effective at stopping projectiles than the graphogel alone. A 500 micron lithium layer was placed behind the armor, in order to detect penetrations with the armor status overlay (anything that damaged 500 um of lithium almost certainly went through it). Gun turrets are armored with 10 cm of amorphous carbon. This is reduced to 7 cm of amorphous carbon on the counterlaser turrets, for faster traverse. Main laser turrets have a perfunctory 200 microns of nitrile rubber. Due to their large size, heavier armor would balloon cost, mass, and most importantly, traverse power requirement. To deal with the hole left in the armor when the main lasers are inevitably shot off, they are placed around a spacer at the rear of the fuselage, just ahead of the engines, which are sparsely placed and multiply redundant. Armament
The primary weapon system is a ring of 10 medium velocity machine guns, firing a 42 g projectile at 2.4 km/s. This weight is a homage to a widely renowned caliber from Earth's history, the ".50 BMG", and has proven very effective against common USTA armor schemes in testing. Our ship's guns, freed from the constraint of operation within an atmosphere, use a considerably larger diameter barrel and fire their projectiles at considerably greater velocity than the original. The rate of fire of each gun is 1800 rounds per minute. In order to strike fear into the hearts of the enemy and sow chaos in battle, the primary weapon system is supplemented by a pair of large-bore cannons, which fire a shell containing a 1 kt plutonium bomb augmented with a 1 kg osmium plate. The plate is intended to penetrate the heaviest of armor when propelled by the nuclear blast, although this effect has not been tested. RFP Intelligence has informed us that the radar signal from the proximity fuze will cause the USTA's point-defense software to treat the shell as a very high priority target. This information has proven accurate in a few engagements with USTA vessels, where the atomic cannons were used to great effect. For defense against drone attacks, the LAC of Blessed Acceleration also mounts four high efficiency (6.14%) 150 kW lasers, feeding four 2 1/3 meter radius turreted mirror. These lasers can bring 10.1 MW/m to bear at 100 km. In case the enemy fields lasers of their own, the LAC has a 100 kW counterlaser, feeding ten 5 cm radius mirrors mounted in fast-traverse turrets. Laser generators are mounted separately from the turrets, which allows them to be placed in otherwise unused space in the nose of the vessel. Unfortunately, mere days before the LAC was scheduled to go into volume production, an internal audit revealed that the chief laser engineer had foisted the task of designing the lasers off onto her apprentice, who had specified diamond arc lamp envelopes. The chief engineer subsequently discovered a number of poorly encrypted emails in the apprentice's inbox, which proved he had been in the pay of the USTA for months. If this vile sabotage had not been discovered, hundreds of tonnes of precious diamond would have been diverted from front-line vessels. The lasers were quickly redesigned to use fused quartz arc lamps, which reduced their efficiency. That is, if we are to believe the saboteur's claim of 8.44% with the diamond envelopes. The war department will be pleased to know that the traitorous apprentice has been transported to the Phobos penal colony. Special FacilitiesFor defense against missiles which are too heavily armored or too numerous to be shot down with the main lasers, the LAC carries a number of 60-second flares. The otherwise very constraining RTG power budget was actually quite beneficial here, because it allowed the use of very small 10 MW flares. In the unfortunate eventuality that that the enemy manages to kill or incapacitate the ship's human crew, the LAC of Blessed Acceleration is equipped with a small AI combat unit which will allow the vessel to avenge it's own crew, autonomously or under the direction of other ships in the same fleet. This capability was found useful in simulation with early design iterations of the ship, but has not been necessary in the field. And of course, as specified, the LAC of Blessed Acceleration has spare bunks for a complement of 30 marines. DoctrineProspective captains of this vessel class are advised as follows: 1. Always orient the nose of the ship toward the enemy, or even better, toward the direction of incoming fire. Never order your helmsman to orient the ship "broadside". Unfortunately, training at the academy has been rather lax during the war, and he will likely not understand which side of the ship that is on a vessel of this configuration. He will deprive you of the use of half your weapons, and he may expose the flat sides of your radiators, or allow enemy fire to strike the armor normal to its surface. In that case, the effectiveness of the armor is not guaranteed. He may also use up your propellant very quickly, by continuously trying to keep the side of your ship pointed at the enemy, while at the same time accelerating perpendicular to the sight line to the enemy. 2. Because of the small electrical power budget afforded your ship, your weapons are mostly chemical, and their muzzle velocities are quite low. They are, however, exceedingly accurate. It will probably be necessary to override the targeting computer, both to open fire earlier and, in engagements with multiple enemy ships, to cycle the computer between targets. Unless your ship is closing with the enemy very quickly, you can probably dispense enough bullets to shred his hull before the first ones arrive. 3. If an enemy vessel is equipped with lasers, it is best to leave the lens caps on your main lasers until the counterlaser turrets have achieved laser superiority. The enemy's fire control software is, unfortunately, somewhat more sophisticated than ours, and will focus fire on vulnerable lasers automatically. Yours, however, will not, so you should order your gunners to do so manually. 4. If the enemy launches missiles against you, it is suggested that you attempt to destroy them with the main lasers. If the missiles come within 60 seconds of intercept, it is imperative that you launch a flare immediately. Flares are much cheaper than lives, and your ship carries plenty of flares for any engagement. If you suspect that the missiles may be carrying high-yield warheads, you should keep attempting to lase them until about 10 s prior to intercept, then retract the radiators and hope for the best. Your ship is armored against nuke flash, but the radiators are comparatively delicate. Don't worry too much about overheating the RTGs. They are designed to operate significantly below the melting point of the fuel pellet, so you have about a minute and a half to get the radiators back out. 5. Drones can be easily dispatched by targeting their weapons with your main lasers, but after doing so you should order your helmsman to thrust a little, in order to get out of the way of any bullets they may have fired before their demise. 6. Do try to dodge incoming fire. You've got lots of acceleration. 7. If you find yourself heavily outgunned, it may be useful to open up with the atomic cannons at extreme range. The enemy may become preoccupied with the incoming shells, and a lucky hit can take out their more dangerous weapons before they start shooting. 8. If, on the other hand, you find yourself facing a less threatening opponent, the main lasers work quite well for disabling a vessels engines, rendering it unable to evade bullets from the machine guns. Or if you wish to capture the enemy vessel mostly intact, you can use the threat of the machine guns to order the crew to stand down while you disable the rest of their weapons and board them. We envision that, when the war is over these LACs can be re-purposed for anti-smuggling and other police operations. ScoringThis ship, with proper piloting, is capable of completing all three difficulty levels on its own. Since it only requires one ship, instead of three, I count the extras as undamaged. Level 1: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 2: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Total: 10 Level 3: Target destroyed: 1 All LACs survived with Δv: 3 All crew modules survived: 6 Additional friendly ships (-2): 8 =P Total: 18 Grand Total: 38 The crew of the RSF Plasma Wake observe the icy remains of Admiral Voitenko's 1/2 Gc fleet: Code:
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
FlareModule 10.0 MW Nitrocellulose Flare, 60 s UsesCustomName true ArmorComposition Lithium ArmorThickness_m 0.001 Cylinder_m 0.1307 2.02 Pyrotechnic CombustionReaction Nitrocellulose DelayComposition Lithium DelayCompositionMassFraction 0.213
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
NuclearPayloadModule 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP UsesCustomName true CoreComposition Pu-239 ReflectorComposition Vanadium Chromium Steel SlowExplosive CombustionReaction Nitroglycerin DelayComposition Calcium DelayCompositionMassFraction 0.902 FastExplosive Octogen CoreMass_kg 0.1 Enrichment_Percent 0.97 HollowCoreRadius_m 0.0294 InnerExplosiveWidth_m 0.025 FusionBoost Deuterium Tritium FusionFuelDensity_kg__m3 75 Detonator HardRange_km 0.05 ActivationRange_km 0.2 MinimumRange_km 1 OverrideTimer_s 0 DelayedTrigger false TargetsShips true TargetsShots true
RadiationShieldModule Dumb NEFP Shell Penetrator UsesCustomName true Composition Osmium Dimensions_m 0.059 0.0041
CombustionRocketModule LAC Engine, Hydrolox UsesCustomName true Reaction LOX LH2 StoichiometricMixtureRatio 1 ThermalRocket ChamberComposition Amorphous Carbon ThroatRadius_m 0.035 ChamberWallThickness_m 0.061 ChamberContractionRatio 4.9 NozzleExpansionRatio 680 NozzleExpansionAngle_degrees 15 RegenerativeCooling_Percent 0 Injector Composition Polyethylene PumpRadius_m 0.35 RotationalSpeed_RPM 261 Gimbal InnerRadius_m 0.56 ArmorComposition Amorphous Carbon ArmorThickness_m 0.015 MomentumWheels Composition UHMWPE RotationalSpeed_RPM 58000 GimbalAngle_degrees 22.5
CrewModule LAC Crew Module UsesCustomName true CrewCapacity 81 Decks 9 StructureMaterial Calcium ShellThickness_m 0.01
RadioisotopeThermoelectricGeneratorModule 248 kW LAC RTG UsesCustomName true FuelPellet Fuel Strontium-90 Mass_kg 1000 Height_m 0.01 Thermocouple PTypeComposition Osmium NTypeComposition Nickel Chromium Iron Length_m 0.015 ExitTemperature_K 370 Coolant Ethane Turbopump Composition Lithium PumpRadius_m 0.01 RotationalSpeed_RPM 280
PropellantTankModule Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 12000 HeightToRadiusRatio 20 AdditionalArmorThickness_m 0
PropellantTankModule Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 95280 HeightToRadiusRatio 9.9 AdditionalArmorThickness_m 0
RadiatorModule LAC RTG Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 23.5 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0 BackTaper_radians 0.117 SurfaceFinish null
LaserModule 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1.5e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 25 CoolantInletTemperature_K 51 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 2.33 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 100 TargetsShips true TargetsShots true
SpacerModule LAC Bow Spacer UsesCustomName true Dimensions_m 0 18.5
RadiatorModule LAC Environmental Radiator UsesCustomName true Composition Calcium PanelWidth_m 1.585 Height_m 0.1 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 16 FrontTaper_radians 0.117 BackTaper_radians 0 SurfaceFinish null
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
RadiatorModule 1100 K Launcher Radiator, LAC UsesCustomName true Composition Calcium PanelWidth_m 0.25 Height_m 0.2 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 2 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
ConventionalGunModule LAC Turreted Autocannon, .50 BMG, MV UsesCustomName true Barrel Composition Amorphous Carbon Length_m 2.7 Thickness_m 0.049 Propellant Composition Octogen Mass_kg 0.13 GrainRadius_m 0.0028 Projectile Composition Zirconium Copper BoreRadius_m 0.019 Mass_kg 0.042 Tracer Aluminum Payload null Loader PowerConsumption_W 50000 Turret InnerRadius_m 0.48 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 161 TargetsShips true TargetsShots true
PropellantTankModule LAC Nose Hydrogen Tank UsesCustomName true Propellant Hydrogen StructureComposition UHMWPE ReactionMass_kg 35000 HeightToRadiusRatio 1.2 AdditionalArmorThickness_m 0
PropellantTankModule LAC Nose Oxygen Tank UsesCustomName true Propellant Oxygen StructureComposition UHMWPE ReactionMass_kg 2.779e+005 HeightToRadiusRatio 2.9 AdditionalArmorThickness_m 0
SpacerModule LAC Tail Spacer UsesCustomName true Dimensions_m 0 10
LaserModule 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC UsesCustomName true ArcLamp GasComposition Xenon EnvelopeComposition Fused Quartz PowerSupplied_W 1e+005 Radius_m 0.041 CavityWallComposition Silver CavityCoolantComposition Hydrogen CavitySemimajorAxis_m 1.195 CavitySemiminorAxis_m 1.17 GainMedium Titanium:Sapphire OpticalNodes 14000000 LasingRodRadius_m 0.14 Mirror Composition Silver OutputCoupler Composition Fused Quartz CoolantTurbopump Composition Amorphous Carbon PumpRadius_m 0.04 RotationalSpeed_RPM 16 CoolantInletTemperature_K 50 FrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.018 OpticRadius_m 0.00054 SecondFrequencyDoubler NonlinearOptic Composition Silver Gallium Selenide OpticLength_m 0.0092 OpticRadius_m 0.00054 ApertureRadius_m 0.05 FocusingMirror Composition Aluminum Unmounted true EngagementRange_km 1 TargetsShips true TargetsShots true
RadiatorModule LAC Laser Radiator UsesCustomName true Composition Amorphous Carbon PanelWidth_m 0.3 Height_m 3.6 Thickness_m 0.001 ArmorThickness_m 0.005 Panels 1 FrontTaper_radians 0 BackTaper_radians 0 SurfaceFinish null
SpacerModule LAC Tail Diameter Spacer UsesCustomName true Dimensions_m 6.75 0
CraftBlueprint Flare, 10 MW, 60 s Modules 10.0 MW Nitrocellulose Flare, 60 s 1 0 null 0 Armor
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
CraftBlueprint Dumb NEFP Shell Modules 968 t Boosted Fission Nuke, Pu-239, 0.228 kt/kg, NEFP 1 0 null 0 Default Remote Control 1 -0.5 null 0 Dumb NEFP Shell Penetrator 1 0.2878 null 0 50.0 cm x 0 m Spacer 1 0.2929 null 0 Armor ArmorLayers Nitrile Rubber 0.00099 0 0 1 1
StandaloneLaserMountModule 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km Turret InnerRadius_m 4.945 Extruded true ArmorComposition Nitrile Rubber ArmorThickness_m 0.0002 MomentumWheels Composition Cobalt RotationalSpeed_RPM 4.5 TargetsShips true TargetsShots true
StandaloneLaserMountModule 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount UsesCustomName false LaserFeed 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC Turret InnerRadius_m 0.153 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.07 MomentumWheels Composition Iridium RotationalSpeed_RPM 740 TargetsShips true TargetsShots true
AmmoModule 20000x 38mm Cannon Round UsesCustomName false SuppliedModule LAC Turreted Autocannon, .50 BMG, MV AmmoBay Capacity 20000 Stacks 20 ArmorComposition Spider Silk ArmorThickness_m 0.05
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
CarrierModule 300 kW Flare, 10 MW, 60 s Launcher UsesCustomName false Payload Flare, 10 MW, 60 s Launcher Stator Aluminum Nickel Cobalt TrackLength_m 0.95 StatorDepth_m 0.51 Forcer Calcium ForcerRadius_m 0.084 Coolant Ethane PowerConsumption_W 3e+005 CoolantTurbopump Composition Calcium PumpRadius_m 0.02 RotationalSpeed_RPM 17 CoolantInletTemperature_K 1100 ArmorMaterial Lithium ArmorThickness_m 0.001 AttachedAmmoBay Capacity 20 Stacks 1 EngagementRange_km 0 TargetsShips false TargetsShots false
ConventionalGunModule Dumb NEFP Shell Turreted Cannon, LAC UsesCustomName true Barrel Composition Vanadium Chromium Steel Length_m 3.7 Thickness_m 0.0067 Propellant Composition Octogen Mass_kg 10 GrainRadius_m 0.0033 Projectile Composition Titanium BoreRadius_m 0.2 Mass_kg 0.001 Tracer null Payload Dumb NEFP Shell Loader PowerConsumption_W 80000 Turret InnerRadius_m 0.89 Extruded true ArmorComposition Amorphous Carbon ArmorThickness_m 0.1 MomentumWheels Composition Iridium RotationalSpeed_RPM 30.3 TargetsShips true TargetsShots true
AmmoModule 200x Dumb NEFP Shell UsesCustomName false SuppliedModule Dumb NEFP Shell Turreted Cannon, LAC AmmoBay Capacity 200 Stacks 4 ArmorComposition Spider Silk ArmorThickness_m 0.005
CraftBlueprint LAC of Blessed Acceleration Modules LAC Engine, Hydrolox 7 0 null 0 LAC Crew Module 1 52.967 null 0 248 kW LAC RTG 3 37.561 null 0 Cellular Hydrogen Tank, 19 in 13.5 m, Hydrolox 19 50.082 null 0 Cellular Oxygen Tank, 19 in 13.5 m, Hydrolox 19 50.723 null 0 LAC RTG Radiator 4 19.874 248 kW LAC RTG 0 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 4 70.602 null 0 LAC Bow Spacer 1 85.992 null 0 150 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 4 9.4472 null 0.7854 300 kW Flare, 10 MW, 60 s Launcher 1 10.513 null 1.43 LAC Environmental Radiator 4 34.967 LAC Crew Module 0 LAC Laser Radiator 4 38.551 150 kW Titanium:Sapphire Near Ultraviolet Laser, 100 km 0 1100 K Launcher Radiator, LAC 4 40.973 300 kW Flare, 10 MW, 60 s Launcher 0 LAC Turreted Autocannon, .50 BMG, MV 10 88.273 null 0.314 LAC Nose Hydrogen Tank 1 55.212 null 0 LAC Nose Oxygen Tank 1 65.472 null 0 Default Remote Control 1 75.732 null 0 Dumb NEFP Shell Turreted Cannon, LAC 2 94.088 null 0 LAC Tail Spacer 1 25.041 null 0 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 1 80.862 null 0 LAC Laser Radiator 4 43.439 100 kW Titanium:Sapphire Near Ultraviolet Counter-Laser, LAC 0 100 kW Titanium:Sapphire Near Ultraviolet Laser Turret Mount 10 96.927 null 0.314 20000x 38mm Cannon Round 1 83.427 null 0 LAC Tail Diameter Spacer 1 12.02 null 0 200x Dumb NEFP Shell 1 78.297 null 0 Armor ArmorLayers Lithium 0.0005 0 0 1 1 Spider Silk 0.008 0.01 0 1 1 Amorphous Carbon 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Graphite Aerogel 2 0 0 1 1 Lithium 0.01 0 0 1 1 Gold 0.0005 0.01 0.518 0.542 1
deltav This is what I was doing with detached laser turrets. The counterlaser system adds nine people to the crew manifest. Very nice ship! Haven't tested it, but what's this about having over a minute before the RTG overheats?
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Post by vegemeister on Mar 22, 2017 16:37:00 GMT
Very nice ship! Haven't tested it, but what's this about having over a minute before the RTG overheats? RTG overheating isn't modeled in-game. But I calculated the time it would take to heat the fuel pellet from it's operating temperature, 909 K, to it's melting point, 1050 K. It's just ΔT * fuel_mass * specific_heat / power. In dimensional analysis terms: K * kg * J/(kg*K) / (J/s) = seconds Plugging in the numbers, that gives 96 s, or about a minute and a half.
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Post by newageofpower on Mar 22, 2017 17:12:29 GMT
Interesting. Most of my lasers are ~4.4% efficient using Krypton + Nd:YAG assemblies.
EDIT: Ah. Pumping efficiency drops as gross power goes up.
;_;
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Post by vegemeister on Mar 22, 2017 17:43:24 GMT
Interesting. Most of my lasers are ~4.4% efficient using Krypton + Nd:YAG assemblies. EDIT: Ah. Pumping efficiency drops as gross power goes up. ;_; It seems like krypton requires either higher arc temperature or more gas in the tube than xenon. In either case, the result is that pumping efficiency increases less quickly as you decrease power density in the arc lamp. Also the envelope is thicker, which requires greater lamp/lasing medium separation and thus makes it more difficult to achieve high cavity shape efficiency. So I think for very low power levels, Ti:Sapphire actually can be made more efficient than Nd:YAG. There's also a bug that shows up with high-power lasers with small-radius arc lamps and weak lamp envelope materials. If the required envelope wall thickness is too large, the wall thickness becomes zero. You can even make the arc lamp out of opaque materials like aluminum. Because it's so strong, diamond isn't usually affected by this. I use it for all my lasers (outside of this challenge) to avoid cheesing the bug. It seems to reduce efficiency by a couple tenths of a percent compared to cheesed zero-thickness-arc-lamp lasers.
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Post by Durandal on Mar 22, 2017 18:35:25 GMT
Very nice ship! Haven't tested it, but what's this about having over a minute before the RTG overheats? RTG overheating isn't modeled in-game. But I calculated the time it would take to heat the fuel pellet from it's operating temperature, 909 K, to it's melting point, 1050 K. It's just ΔT * fuel_mass * specific_heat / power. In dimensional analysis terms: K * kg * J/(kg*K) / (J/s) = seconds Plugging in the numbers, that gives 96 s, or about a minute and a half. I'd never noticed that, haven't played with RTGs really because of their cost. Anybody have a high power RTG design? 1MW+?
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