A jet engine is any engine that can propel an aircraft of some kind via rearward expulsion of a jet of fluid, typically a hot exhaust gas that the engine generates by drawing in fuel from the ...

Ramjet engines make it possible to reach very high flight speeds of more than five times the speed of sound, known as hypersonic. These engines not only offer great potential for future aviation and ...

This technique allows projectiles or future aircraft ... turbojet and a ramjet. GE Aerospace seems to have overcome these limitations with their tested DMRJ (Dual-Mode Ramjet) engine.