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Showing results for tags 'propulsion tech'.
The propellants in KSP: Liquid Fuel, Oxidizer. (Sorry Monopropellant, you are for another discussion). The classics, designed to be unambiguous. However, the KSP community has always tried to put a definition on them. Liquid Fuel was easy - liquid hydrogen. It can run as a high efficiency vacuum engine, or as a jet engine along sea level. As a first stage or in a NERVA. Liquid Hydrogen checked all boxes. Oxidizer, on the other hand, has stayed in debate if not given up on. Liquid Oxygen feels like a good candidate, but fails in one area: hypergolic-ness (Okay, that’s the dumbest way