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Post by cipherpunks on Jan 22, 2019 15:58:58 GMT
Still working with Combustion Light Gas Gun (CLGG) tech. Decided to add Your mixes/reactions to my 'bundle' of Compendium et al. Please let me know if relevant data needs to change. |
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Post by doctorsquared on Jan 22, 2019 18:22:47 GMT
Still working with Combustion Light Gas Gun (CLGG) tech. Decided to add Your mixes/reactions to my 'bundle' of Compendium et al. Please let me know if relevant data needs to change. It has the same detonation velocity and reaction characteristics as the standard LOX/LF2 and LH2 reactions but just assumes the fuel and oxidizer mix while liquid to accommodate for conventional gun mechanics. |
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Post by dragonkid11 on Jan 28, 2019 14:08:07 GMT
 Made a new drone because I want to go for a spaceplane look. Astrofighter, short range missile fighter. 6 tons. It is equipped with 2 long range railgun and 4 high velocity conventional cannons, covering top and bottom sides of the craft. For its payload, it has 32 light antiship missiles and 80 anti-missile missiles for missile defence on-route to the target. All in all, it was an experiment for me to see how I could fit everything without compromising its size. Oh, and it has canards. |
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Post by airc777 on Feb 3, 2019 22:17:12 GMT
Toying around with larger scale reactors and engines to reduce the part count on limits edited large craft. This is my first draft of a 100gw reactor. I feel like this should mass like ~900 tons and not 2.25kt. Went with denser, stronger turbo pump materials, could be partly to blame. Also I have about ~100gw more waste heat then I was expecting so there's that. How correctly the sliders to shave grams?
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Post by dragon on Feb 4, 2019 0:01:32 GMT
If you're editing limits, then lowering thermocouple length and compensating with larger dimensions seem to have a positive effect.
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Post by cipherpunks on Feb 4, 2019 5:57:03 GMT
See, You said that. 1.38 kt now: 101 GW_E 40x57 m 2500 K 694 GW_T Na Na.txt (910 B) ThermoelectricFissionReactorModule 101 GW_E 40x57 m 2500 K 694 GW_T Na/Na
UsesCustomName true
ReactorCoreDimensions_m 0.634 1.317
NuclearReactor
Coolant Sodium
Moderator Pyrolytic Carbon
ModeratorMass_kg 1071
Fuel U-233 Dioxide
FuelMass_kg 924
FuelEnrichment_Percent 0.97
ControlRodComposition Hafnium Carbide
ControlRodMass_kg 14000
NeutronReflector Diamond
ReflectorThickness_m 0
AverageNeutronFlux__m2_s 2.2938e+20
InnerTurbopump
Composition Amorphous Carbon
PumpRadius_m 5.3
RotationalSpeed_RPM 189.6
ThermocoupleInnerDimensions_m 20 39.7
Thermocouple
PTypeComposition Osmium
NTypeComposition Tungsten
Length_m 0.0001
ThermocoupleExitTemperature_K 2500
OuterCoolant Sodium
OuterTurbopump
Composition Reinforced Carbon-Carbon
PumpRadius_m 4.8
RotationalSpeed_RPM 220
Next step will be to install EVERYTHING material-wise. Attachments:
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Post by cipherpunks on Feb 4, 2019 7:32:23 GMT
...then it can either be made somewhat smaller, hotter, and either 600 t & 'moar powah'... 143 GW_E 26x49 m 2650 K 670 GW_T Na Na_mod.txt (964 B) ThermoelectricFissionReactorModule 143 GW_E 26x49 m 2650 K 670 GW_T Na/Na_mod
UsesCustomName true
ReactorCoreDimensions_m 0.8644 1.4
NuclearReactor
Coolant Sodium
Moderator Graphene_mod
ModeratorMass_kg 690
Fuel Graphene U-233 Cermet_mod
FuelMass_kg 907.3
FuelEnrichment_Percent 0.97
ControlRodComposition HfC-encapsulated Boron Carbide_mod
ControlRodMass_kg 3342
NeutronReflector Graphene_mod
ReflectorThickness_m 0
AverageNeutronFlux__m2_s 1.9892e+20
InnerTurbopump
Composition 3D-Graphene_mod
PumpRadius_m 4
RotationalSpeed_RPM 199.27
ThermocoupleInnerDimensions_m 13 35
Thermocouple
PTypeComposition 3D Graphene Material_mod
NTypeComposition Tungsten, no expansion
Length_m 0.0001
ThermocoupleExitTemperature_K 2650
OuterCoolant Sodium
OuterTurbopump
Composition 3D-Graphene_mod
PumpRadius_m 3.6
RotationalSpeed_RPM 220
 ...or - alternatively - 1 kt and slimmer: 101 GW_E 15x57 m 2687 K 493 GW_T Li Li_mod.txt (992 B) ThermoelectricFissionReactorModule 101 GW_E 15x57 m 2687 K 493 GW_T Li/Li_mod
UsesCustomName true
ReactorCoreDimensions_m 0.8759 1.4
NuclearReactor
Coolant Liquid Lithium_mod
Moderator Graphene_mod
ModeratorMass_kg 1137.7
Fuel Graphene U-233 Cermet_mod
FuelMass_kg 1080
FuelEnrichment_Percent 0.97
ControlRodComposition HfC-encapsulated Boron Carbide_mod
ControlRodMass_kg 2800
NeutronReflector Graphene_mod
ReflectorThickness_m 0
AverageNeutronFlux__m2_s 1.23e+20
InnerTurbopump
Composition 3D-Graphene_mod
PumpRadius_m 5
RotationalSpeed_RPM 218.7
ThermocoupleInnerDimensions_m 7.5 37.5
Thermocouple
PTypeComposition 3D Graphene Material_mod
NTypeComposition Tungsten, no expansion
Length_m 0.0001
ThermocoupleExitTemperature_K 2687
OuterCoolant Liquid Lithium_mod
OuterTurbopump
Composition 3D-Graphene_mod
PumpRadius_m 6.3
RotationalSpeed_RPM 143.9
 TBH I'm yet to decide on best coolant(s) for these sizes. |
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Post by airc777 on Feb 4, 2019 12:30:42 GMT
Why is mass efficiency so closely related to thermal couple length? What physical dimension is that even referring to? How closely the thermal couple is mounted to the hot core? Gauge of the internal heat transfer pipes? Thickness of the walls of the internal heat transfer pipes? I'm trying to get a grasp on how optimistic these designs actually are. What is likely to mechanically fail due to making a microns thin thermal couple?
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Post by airc777 on Feb 5, 2019 18:23:07 GMT
Made 101gw @ 15.9% and 2500k in under 650t with limits editing and stock materials. Still have no idea what thermal couple length actually does. Will be making large scale NTR's next.
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Post by airc777 on Feb 6, 2019 20:43:50 GMT
Beat final mission with a 6Mm ranged railgun ship. The only limits editing done was to increase the power draw on the gun so it could fire every half second. Ship has double the power it needs because on my first attempt the ship wouldn't charge the capacitor and aim the gun at the same time. No tankers were needed, ship was well under budget. Let the drones fling off into deep space and deactivate themselves.
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Post by Rocket Witch on Feb 8, 2019 23:14:03 GMT
I fixed the engines from yesterday, and used them for nuke missiles on this ship.  Any opinions on the spaced armor? Too thin. You need at least 3mm on the outer layer to break up a (probably only 1g) shot according to some ingame whipple shield tests. Perhaps then the inner layer could then be minimum thickness (.5mm) just to catch plasma/spall, but this is like "may as well not bother" levels of protection. IMO the most useful thing to do with <3mm armour is make it nuke flash cladding (zirconium carbide is apparently good for this) so you don't crisp up from some random explosion in the distance. |
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Post by airc777 on Feb 12, 2019 7:35:13 GMT
PRESENTING: Possibly the least cost effective weapon system.
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Post by airc777 on Feb 13, 2019 0:29:15 GMT
Trying to make missiles work again. This thing yields 100 Mt, has 10.2 Km/s of delta V @ 8G, and has an MPDT. So basically I've built an Inter Planetary Guided Missile.
8 of these cost the same as a stock corvette and will absolutely ruin it, but I'm having guidance problems trying to make them track down my laser stars. They don't seem to want to accelerate when beyond 1 Megameter, and it's getting them destroyed as they coast in at 5 meters per second.
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Post by airc777 on Feb 14, 2019 6:04:12 GMT
This missile makes 1.5g wet acceleration, has 12.8km/s delta V via thermal thruster, and 111km/s via mpdt, and it's topped with a 1.00Gt yield warhead. So assuming 9.5km/s from earth surface to low earth orbit using thermal this thing should, and then ballparking that it has at least 10km/s via mpdt after, this is an earth surface to anywhere in the solar system warhead delivery system. In case the space colonies throw the space tea into the space harbor and you need a do over. Also it's accidentally 6.66Kt exactly.
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Post by reuspppp on Feb 15, 2019 15:17:21 GMT
This missile makes 1.5g wet acceleration, has 12.8km/s delta V via thermal thruster, and 111km/s via mpdt, and it's topped with a 1.00Gt yield warhead. So assuming 9.5km/s from earth surface to low earth orbit using thermal this thing should, and then ballparking that it has at least 10km/s via mpdt after, this is an earth surface to anywhere in the solar system warhead delivery system. In case the space colonies throw the space tea into the space harbor and you need a do over. Also it's accidentally 6.66Kt exactly.
how did you even make a 1 Gt warhead !? (absolute noob here ^^') |
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