Still working with Combustion Light Gas Gun (CLGG) tech.
Why LOX/LH2 and not LF2/LH2?
For practical reasons, if the gun actually had to feed from a pair of accumulator tanks it'd be easier and more inert to carry a tank of water with an electrolysis setup and producing propellant as needed rather than storing LF2 and LH2. Plus water is easier to come by than fluorine and the byproducts don't necessitate high-temperature corrosion resistant materials like nickel chromium cobalt (Inconel) or nickel chromium molybdenum (Hastelloy).
The not so practical reason is that the LOX/LH2 seems to give me a little bit better velocity at lower loadings of propellant than my LF2/LH2 designs. Partially because I have to play around with grain size due to the game not being able to simulate gas guns accurately.
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.
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.
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?
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?
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.
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.
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.