a type of aircraft engine that uses the forward motion of an aircraft to compress air into the engine.
passenger jet uses turbojet engines, which mechanically drive the air into it. ramjet can obtain theoretically up to mach 5. however sr-71 blackbird, the fastest aircraft ever only achieve the max speed of mach 3.4 (4165km/2603M) this is due to environmental factor
Thursday, July 30, 2009
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