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Post by someusername6 on Mar 4, 2017 7:00:23 GMT
That's a lot of power, but the big question is what's the price and mass of that railgun. Mass is 688 t, cost is 32.5 Mc. |
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Post by dragonkid11 on Mar 4, 2017 7:17:52 GMT
That's a lot of power, but the big question is what's the price and mass of that railgun. Mass is 688 t, cost is 32.5 Mc. Okay that's erm... big. |
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Post by someusername6 on Mar 4, 2017 7:20:36 GMT
Mass is 688 t, cost is 32.5 Mc. Okay that's erm... big. Yes; over half of the cost and the mass are in hafnia. Trying to bring up that efficiency but materials are not agreeing with me. |
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Post by lawson on Mar 4, 2017 7:33:40 GMT
Probably needs to be polished more, but: turns out you can still use railguns to impart lots of delta v to small missiles. If you are willing to spend the relevant power. Here's a hafnia capacitor that stores 1.55 GJ, and, incidentally, a gun that launches nuclear micromissiles (3.6 kg) at almost 8 km/s:  RemoteControlModule Default Remote Control Tall
UsesCustomName true
AspectRatio 8
HomingBehavior
PropellantForBoostPhase_Percent 0.65
BoostPhase
GuidanceLaw Augmented Proportional Navigation
Accelerate true
DampingEngineMultiplier 0.5
MidcoursePhase
GuidanceLaw Augmented Proportional Navigation
Accelerate false
DampingEngineMultiplier 0.25
TerminalPhase
GuidanceLaw Augmented Proportional Navigation
Accelerate true
DampingEngineMultiplier 1
CombustionRocketModule Micro HF
UsesCustomName true
Reaction Fluorine Hydrogen
StoichiometricMixtureRatio 1
ThermalRocket
ChamberComposition Boron
ThroatRadius_m 0.001
ChamberWallThickness_m 0.0002
ChamberContractionRatio 100
NozzleExpansionRatio 85
NozzleExpansionAngle_degrees 12
RegenerativeCooling_Percent 1
Injector
Composition Lithium
PumpRadius_m 0.027
RotationalSpeed_RPM 31
Gimbal
InnerRadius_m 0.04
ArmorComposition Graphite Aerogel
ArmorThickness_m 0.0001
MomentumWheels
Composition Lithium
RotationalSpeed_RPM 13000
GimbalAngle_degrees 3
PropellantTankModule 100 g Hydrogen Tank Tall
UsesCustomName true
Propellant Hydrogen
StructureComposition Boron
ReactionMass_kg 0.1
HeightToRadiusRatio 20
AdditionalArmorThickness_m 0
PropellantTankModule 1.90 kg Fluorine Tank Tall
UsesCustomName true
Propellant Fluorine
StructureComposition Boron
ReactionMass_kg 1.9
HeightToRadiusRatio 20
AdditionalArmorThickness_m 0
NuclearPayloadModule Soda Can Nuke 95t Small
UsesCustomName true
CoreComposition U-233
ReflectorComposition Vanadium Chromium Steel
SlowExplosive
CombustionReaction Silicon Thermite
DelayComposition Boron
DelayCompositionMassFraction 0.219
FastExplosive Nitrocellulose
CoreMass_kg 0.01
Enrichment_Percent 0.97
HollowCoreRadius_m 0.02
InnerExplosiveWidth_m 0.0093
FusionBoost Deuterium Tritium
FusionFuelDensity_kg__m3 120
Detonator
HardRange_km 0.01
ActivationRange_km 0.05
MinimumRange_km 0
OverrideTimer_s 0
DelayedTrigger false
TargetsShips true
TargetsShots true
SpacerModule 10.0 cm x 0 m Spacer
UsesCustomName false
Dimensions_m 0 0.1
CraftBlueprint Micro Nuclear Missile
Modules
Default Remote Control Tall 1 0.33418 null 0
Micro HF 1 0 null 0
100 g Hydrogen Tank Tall 1 0 null 0
1.90 kg Fluorine Tank Tall 1 0.056119 null 0
Soda Can Nuke 95t Small 1 0.47321 null 0
10.0 cm x 0 m Spacer 1 1.4892 null 0
Armor
ArmorLayers
Silica Aerogel 0.00065 0 0 1 1
RailgunModule 1.000 GW Micro Nuclear Missile Turreted Capacitor Railgun
UsesCustomName false
PowerConsumption_W 1e+009
Capacitor
Count 1
DielectricComposition Hafnia
Dimensions_m 1.4 7.1
Separation_m 6.9e-005
Rails
Composition Aluminum Copper Lithium
Thickness_m 1.2
Length_m 8.4
BarrelArmorThickness_m 0.107
Armature
Composition Vanadium Chromium Steel
BoreRadius_m 0.067
Mass_kg 0.043
Tracer null
Payload Micro Nuclear Missile
Loader
PowerConsumption_W 1e+008
Turret
InnerRadius_m 2
Extruded true
ArmorComposition Diamond
ArmorThickness_m 0.05
MomentumWheels
Composition Osmium
RotationalSpeed_RPM 630
TargetsShips true
TargetsShots false
Range is also reasonable, but the idea is that this is a missile that can adjust the trajectory some, and so should be fired at much longer ranges. I have so far tested in place of / paired up large laser ships. It's very satisfying to see a nuclear missile accelerating towards the enemy at those speeds. Have you tried a more conductive armature? |
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Post by someusername6 on Mar 4, 2017 7:37:26 GMT
Probably needs to be polished more, but: turns out you can still use railguns to impart lots of delta v to small missiles. If you are willing to spend the relevant power. Here's a hafnia capacitor that stores 1.55 GJ, and, incidentally, a gun that launches nuclear micromissiles (3.6 kg) at almost 8 km/s: RemoteControlModule Default Remote Control Tall
UsesCustomName true
AspectRatio 8
HomingBehavior
PropellantForBoostPhase_Percent 0.65
BoostPhase
GuidanceLaw Augmented Proportional Navigation
Accelerate true
DampingEngineMultiplier 0.5
MidcoursePhase
GuidanceLaw Augmented Proportional Navigation
Accelerate false
DampingEngineMultiplier 0.25
TerminalPhase
GuidanceLaw Augmented Proportional Navigation
Accelerate true
DampingEngineMultiplier 1
CombustionRocketModule Micro HF
UsesCustomName true
Reaction Fluorine Hydrogen
StoichiometricMixtureRatio 1
ThermalRocket
ChamberComposition Boron
ThroatRadius_m 0.001
ChamberWallThickness_m 0.0002
ChamberContractionRatio 100
NozzleExpansionRatio 85
NozzleExpansionAngle_degrees 12
RegenerativeCooling_Percent 1
Injector
Composition Lithium
PumpRadius_m 0.027
RotationalSpeed_RPM 31
Gimbal
InnerRadius_m 0.04
ArmorComposition Graphite Aerogel
ArmorThickness_m 0.0001
MomentumWheels
Composition Lithium
RotationalSpeed_RPM 13000
GimbalAngle_degrees 3
PropellantTankModule 100 g Hydrogen Tank Tall
UsesCustomName true
Propellant Hydrogen
StructureComposition Boron
ReactionMass_kg 0.1
HeightToRadiusRatio 20
AdditionalArmorThickness_m 0
PropellantTankModule 1.90 kg Fluorine Tank Tall
UsesCustomName true
Propellant Fluorine
StructureComposition Boron
ReactionMass_kg 1.9
HeightToRadiusRatio 20
AdditionalArmorThickness_m 0
NuclearPayloadModule Soda Can Nuke 95t Small
UsesCustomName true
CoreComposition U-233
ReflectorComposition Vanadium Chromium Steel
SlowExplosive
CombustionReaction Silicon Thermite
DelayComposition Boron
DelayCompositionMassFraction 0.219
FastExplosive Nitrocellulose
CoreMass_kg 0.01
Enrichment_Percent 0.97
HollowCoreRadius_m 0.02
InnerExplosiveWidth_m 0.0093
FusionBoost Deuterium Tritium
FusionFuelDensity_kg__m3 120
Detonator
HardRange_km 0.01
ActivationRange_km 0.05
MinimumRange_km 0
OverrideTimer_s 0
DelayedTrigger false
TargetsShips true
TargetsShots true
SpacerModule 10.0 cm x 0 m Spacer
UsesCustomName false
Dimensions_m 0 0.1
CraftBlueprint Micro Nuclear Missile
Modules
Default Remote Control Tall 1 0.33418 null 0
Micro HF 1 0 null 0
100 g Hydrogen Tank Tall 1 0 null 0
1.90 kg Fluorine Tank Tall 1 0.056119 null 0
Soda Can Nuke 95t Small 1 0.47321 null 0
10.0 cm x 0 m Spacer 1 1.4892 null 0
Armor
ArmorLayers
Silica Aerogel 0.00065 0 0 1 1
RailgunModule 1.000 GW Micro Nuclear Missile Turreted Capacitor Railgun
UsesCustomName false
PowerConsumption_W 1e+009
Capacitor
Count 1
DielectricComposition Hafnia
Dimensions_m 1.4 7.1
Separation_m 6.9e-005
Rails
Composition Aluminum Copper Lithium
Thickness_m 1.2
Length_m 8.4
BarrelArmorThickness_m 0.107
Armature
Composition Vanadium Chromium Steel
BoreRadius_m 0.067
Mass_kg 0.043
Tracer null
Payload Micro Nuclear Missile
Loader
PowerConsumption_W 1e+008
Turret
InnerRadius_m 2
Extruded true
ArmorComposition Diamond
ArmorThickness_m 0.05
MomentumWheels
Composition Osmium
RotationalSpeed_RPM 630
TargetsShips true
TargetsShots false
Range is also reasonable, but the idea is that this is a missile that can adjust the trajectory some, and so should be fired at much longer ranges. I have so far tested in place of / paired up large laser ships. It's very satisfying to see a nuclear missile accelerating towards the enemy at those speeds. Have you tried a more conductive armature? Near these solutions / designs, they tend to not have enough tensile strength. But I will keep looking. Edit: and of course I find an improvement right after I post. Thanks, I will report once it stops improving. |
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Post by dragonkid11 on Mar 4, 2017 8:24:04 GMT
I FINALLY MADE A FUNCTIONING COILGUN FROM SCRATCH!!!  It's erm, kinda looks like the sniper coilgun except well, you know, WAY smaller. Also green, don't forget the green.  But it still bring the issue of 'I cannot make good coilgun with more than one stage.' And well, iron is now just, useless. Attempt to make coilgun with iron armature that fire faster than 2 kmps has failed. |
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Post by thinespree on Mar 4, 2017 9:35:18 GMT
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Post by dragonkid11 on Mar 4, 2017 13:40:18 GMT
So, I think I finally figured how to make the new coilgun. And while iron is barely usable as cheap coilgun ammunition, nickel iron molybdenum is good for the job even if it's annoyingly expensive to a ridiculous level. But anyway, here's my prove my coilgun can still be simple to make and extremely light weight and competitive just like before.  A incredibly light weight 1 gram coilgun with insane accuracy.  Here's the schematic if you want one. Key to making a good coilgun seems to be using high density and high melting point, such as tungsten rhenium and osmium. Still have no idea to actually control the efficiency of the capacitor. It was so accurate and hit so damn hard that it easily sniped off turrets from a capital ships like nothing. And of course, since it needs so little power to run...  Spamming them was easy. |
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Post by Rocket Witch on Mar 4, 2017 15:18:22 GMT
Key to making a good coilgun seems to be using high density and high melting point, such as tungsten rhenium and osmium. I take it you didn't notice my tantalum hafnium carbide coil earlier. That seems to have the absolute best heat dissipation for coilguns. Regular tungsten is better than the rhenium alloy too (in reality rhenium is added to tungsten to make it more malleable, not desirable for guns). |
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Post by David367th on Mar 4, 2017 15:35:19 GMT
Key to making a good coilgun seems to be using high density and high melting point, such as tungsten rhenium and osmium. I take it you didn't notice my tantalum hafnium carbide coil earlier. That seems to have the absolute best heat dissipation for coilguns. Regular tungsten is better than the rhenium alloy too (in reality rhenium is added to tungsten to make it more malleable, not desirable for guns). TaHfC seems to have really poor beam deflection resistance, or low yield strength I guess, so you need thicker barrels. Tungsten drops a couple meter/sec in velocity but you can have much smaller barrels. |
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Post by gedzilla on Mar 4, 2017 17:55:26 GMT
 I love 1.10  . Suddenly the game became much more interesting. Here is what I've been working on for the last two days. Andarta is the offensive/gunship equivalent, armed with: 48 counter laser turrets , driven by 10 lasers (fps reasons - could easily be much more). Single 400MW laser with six turrets. 1200 small, fast, 13km/s, dual warhead missiles with external tanks. 300 similar missiles without the external tanks - to avoid the lag if I have to launch under fire.
60 small defensive laser drones - could be easily much more but I want to avoid giving the AI rope to hang my PC. I usually send a single drone towards the missile swarm and shoot the engines of the missiles as I pass by.
3 multifunctional small 15MW needle guns with around 41/42km/s.
Single very accurate 100MW large needle gun with 100km/s at the bow. Certainly more speed and range is possible with a much larger gun and more power. This almost got under 300 tons and generally has a pretty descent turning speed for a large gun.
Minerva is the defensive/escort laser frigate equivalent. 40 meters and 20 million credits less than Andarta. Sacrifices almost all offensive punch, except the multifunctional needle guns to get there however.
Both ships have pretty decent acceleration of 0.6/0.7G that really helps with missle swarms, if the lasers and drones do not get them before that.
If anyone is interested in details about anything just ask.
how do you have so much Dv and acceleration ? A NTR, MPD combo ? |
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Post by David367th on Mar 4, 2017 17:59:54 GMT
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Post by concretedonkey on Mar 4, 2017 18:02:36 GMT
.... I love 1.10 . Suddenly the game became much more interesting. Here is what I've been working on for the last two days. Andarta is the offensive/gunship equivalent, armed with: 48 counter laser turrets , driven by 10 lasers (fps reasons - could easily be much more). Single 400MW laser with six turrets. 1200 small, fast, 13km/s, dual warhead missiles with external tanks. 300 similar missiles without the external tanks - to avoid the lag if I have to launch under fire.
60 small defensive laser drones - could be easily much more but I want to avoid giving the AI rope to hang my PC. I usually send a single drone towards the missile swarm and shoot the engines of the missiles as I pass by.
3 multifunctional small 15MW needle guns with around 41/42km/s.
Single very accurate 100MW large needle gun with 100km/s at the bow. Certainly more speed and range is possible with a much larger gun and more power. This almost got under 300 tons and generally has a pretty descent turning speed for a large gun.
Minerva is the defensive/escort laser frigate equivalent. 40 meters and 20 million credits less than Andarta. Sacrifices almost all offensive punch, except the multifunctional needle guns to get there however.
Both ships have pretty decent acceleration of 0.6/0.7G that really helps with missle swarms, if the lasers and drones do not get them before that.
If anyone is interested in details about anything just ask.
how do you have so much Dv and acceleration ? A NTR, MPD combo ? Yep, methane NTR/MPD. I may have to revisit the MPDs however , haven't given them much thought for quite a while now. Not sure if anything changed there since the last few patches. |
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Post by gedzilla on Mar 4, 2017 19:05:36 GMT
how do you have so much Dv and acceleration ? A NTR, MPD combo ? Yep, methane NTR/MPD. I may have to revisit the MPDs however , haven't given them much thought for quite a while now. Not sure if anything changed there since the last few patches. Wanna share the MPD ? i have very few and could always use one |
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Post by concretedonkey on Mar 4, 2017 19:22:06 GMT
Yep, methane NTR/MPD. I may have to revisit the MPDs however , haven't given them much thought for quite a while now. Not sure if anything changed there since the last few patches. Wanna share the MPD ? i have very few and could always use one Just keep in mind that its in no way optimized. MagnetoplasmadynamicThrusterModule 48.7 km/s 196 MW Methane Magnetoplasmadynamic Thruster
UsesCustomName false
CathodeRadius_m 0.001
ChamberThickness_m 0.59
AnodeThickness_m 0.001
ThrusterLength_m 0.01
CathodeComposition Osmium
AnodeComposition Beryllium Copper
InsulatorComposition Silicon
Propellant Methane
Current_A 1e+005
Injector
Composition Boron
PumpRadius_m 0.055
RotationalSpeed_RPM 25
GimbalAngle_degrees 0 |
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. Suddenly the game became much more interesting.