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Langy · 10-25-2009, 04:45 PM

Your mixing up fuel and reaction mass, Rev. Fuel's the stuff that provides power - antimatter in an AM engine, fissionables in a fission engine, and whatever it is your actually fusing in a fusion engine. Reaction mass is the stuff that you expel out of the back of the ship. Air-ram mode replaces the normal reaction mass with air, but it doesn't effect the fuel at all.

The normal fuel is still used to heat the air - it's just heating air instead of hydrogen, water, or whatever.

10-25-2009, 04:45 PM	#4
Langy Join Date: May 2008 Location: CA	Re: [Spaceships] Fuel versus reaction mass Your mixing up fuel and reaction mass, Rev. Fuel's the stuff that provides power - antimatter in an AM engine, fissionables in a fission engine, and whatever it is your actually fusing in a fusion engine. Reaction mass is the stuff that you expel out of the back of the ship. Air-ram mode replaces the normal reaction mass with air, but it doesn't effect the fuel at all. The normal fuel is still used to heat the air - it's just heating air instead of hydrogen, water, or whatever.