Post your designs here!

Drop tanks are known to cause severe lag and drop tank collisions may cause crashes.

Have you considered replacing the nitrile rubber with spider silk? And that delta-v is looking pretty low. How much interreflection are your radiators suffering from and what are the stats of those railguns?

Been tinkering with multibarreled coilguns. Here's a 50MW model that throws a 25g slug at a decent muzzle velocity at a somewhat rapid rate of fire. Overall, I find that a multibarrel approach coupled with boron nitride as barrel armor is a bit more mass-efficient than a thick outer jacket of boron nitride at dissipating heat

After some dabbing in capital ship building, I decided to reattempt subcapital drone design that actually looks decent instead of... what I previously had.








It has two railguns for long range attack, four conventional cannons for devastating close range attack, blast launchers packed with small class attack missiles, medium class cluster munition missiles, and micro class anti missile missiles.

Works pretty well, if a bit expensive at its 2 millions credit price for a 100 tons drone...

I have decided to upload my heavy railgun I determined to be in holiday spirit.

It's X-masy because it shoots lumps of coal 1kg amorphous carbon slugs at over 20km/s each 894ms at anyone I deem naughty, gifting them 200MJ of kinetic energy (almost 50 Ricks of blam) each - I thus named it "Santa".

It is a bit on the large-ish and expensive side, but not heavier nor bigger than stock 13MW 1mm Turreted Capacitor Coilgun (which I recently ended up bolting onto my stock "Garuda" Dreadnought as it is actually less disappointing than 34mm heavy coilgun, and which I therefore consider borderline practical) and not that much more expensive, and it can actually track fast enough to keep the editor happy and warnings free.
Keeping the rails from flopping about has proven somewhat challenging (I tried osmium as it is both strong, stiff and has low thermal expansion, but being so stiff it actually tends to explode from thermal expansion anyway, despite its strength - it is damn heavy too) so it isn't very accurate weapon (comparable with most stock EM guns, actually).

Link:
steamcommunity.com/sharedfiles/filedetails/?id=1607067371

I've been tinkering around with Rocket Witch's proposal for a Combustion Light Gas Gun (IE, a conventional cannon that leverages the higher specific impulse of liquid/gaseous bipropellants to achieve higher muzzle velocities. The current result is a 120mm cannon that utilizes liquid hydrogen and fluorine as propellants, in an ideal application the fuel charge would be transferred from separate fuel and oxidizer tanks into a pair of accumulators where it would then be injected into the chamber where it would combust.

Pros:

• Similar performance to low-powered coilguns with greatly reduced energy costs.
• Avoids thermal expansion stress issues of EM guns and thus can use a much lighter barrel.
• Can be used to fire heavy projectiles at higher speeds than a conventional gun.

ChemicalReactions.txt
ChemicalReaction Fluorine Hydrogen Liquid Mix
Reactants Fluorine Hydrogen Liquid Mix
ReactantCounts 1
Products Hydrogen Fluoride
ProductCounts 2
ActivationEnergy_kJ__mol 82.8
AutoignitionTemperature_K 773

Combustibles.txt
Material Fluorine Hydrogen Liquid Mix
Elements F H
ElementCount 2 2
Density_kg__m3 1581.1
EnthalpyOfFormation_kJ__mol -273.3
SpecificHeat_J__kg_K 7970.86
MeltingPoint_K 14.01
BoilingPoint_K 20.28
ThermalConductivity_W__m_K .067205
RefractiveIndex Hydrogen
RoughnessCoefficient .9

Still working with Combustion Light Gas Gun (CLGG) tech.