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FMRN Supercarrier

(previous post continued, due to character cap.)

Your launchers use heavy water as coolant, which can be replaced with sodium for increased launch speed or hydrogen for reduced mass.

Your 300 MW lasers efficiency can be improved by 1% using SIlver Gallium Selenide for both doublers and by increasing the semi-minor axis of the cavity. Additionally, hydrogen is the best cavity coolant due to its low mass and 100% transparency.

Your RTGs use Promethium-147 which is inferior to Polonium-210. The reduced cost of the fuel overcomes the increased radiator mass.

Your missile has a flat nose, which significantly reduces its durability. Additionally, one of its flak bombs uses octogen, which provides no benifit over nitrocellulose in flak bombs.

The NTRs on both the drone and missile are un-gimballed, which will result in large ammounts of fuel being wasted while manuvering.


You seem relativly new here, so I hope this helps.

This ship has two major issues.

First, it has a poor internal layout. Thinner modules should always go before wider ones. In the current build of the ship, a significant ammount of space is wasted near the 45 man crew modules.

Second, it has far too much fuel. You can remove 20 thousand tons of fuel while only losing 1.6 km/s of Delta-V.


I can also suggest some improvemnts to your modules

The railguns are highly inefficient. By switching to hafina capacitors you can improve it by ~20%.

The methane NTRs can have their exhaust velocity increased by 330 m/s by switching the control rods to Hafinum Carbide. Additionally, you can make slight mass savings by switching its reaction wheel to using magnesium.

Your chemical guns use VCS, which is can be replaced with diamond for less mass and cost.

Nice idea for the armour. I hadn't really thought of putting laser armour over the whipple shield. I'd personally make the stuffing much thicker and replace the tin bumpers after the whipple with spider silk or boron filament. Having 1+ meters of stuffing does wonders for survivability, and after the outer bumper you need a material that can stop or slow down fragments before they tear through more of your precious aerogel. If you don't care about costs (and you shouldn't at that size, mass is really the limiting factor for most designs) you can replace the second bumper with aramid fiber. The heat-resistance helps stop the plasma which can burn through stuff like spider silk. You can also add a few meters of empty spacing after the whipple to allow the plasma to disperse without paying a fortune in aerogel.

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