Is it stored as as chemical or molten metal (molten metals are liquid just really hot).
Getting to orbit: Arioch said orbital construction is how Loroi fleets are built.
Now I spend plenty of time on KSP website and I have learned this fron members.
1. Chemical thrust is limited, so if you wanted to launch up something as heavy as a WWII battleship into orbit it is always more efficient to send up with multiple launches piece by piece and then assembe them together in orbit.
Otherwise you would have the odd scenario of reusable boosters exhausting most of their propellant and landing a mere few feet from the ground as rest of the staging and the superheavy spacecraft slowly climbed upward.
2. Trying to launch heavy with super fuels IRL runs into the problem of either blowing up your reaction chamber and ship with too much energy (reason why project orion is external rather than internal propulsion) or it forces you to launch really big (bigger reaction chamber that won't overheat) which at some point will negate the thrust advantage from weight alone.
Conclusion: IRL the fastest to way to launch a space fleet is to launch all the pieces separately in one go via multiple launches occurring simultaneously, with orbital rendezvous and assembly of spacecraft parts to form entire spaceships occuring in orbit.
I presume that is the basis for Loroi and umiak space fleets? Complemented by supplies being shipped in orbitally from nearby moon basesand other spaceships etc?
3. The sad thing about SSTO's IRL is they really cannot get very heavy or big without being nearly all fuel tank. It's not like Star Wars at all.
In fact the easiest way to use less fuel is to make use of the atmosphere via air breathing rocketry and ram/scram jet your way into space with a few rocket insertion burns.
Thus puts tremendous heat on the hull as you must reach near orbital speeds in the upper atmosphere for it to work.
