Engines which propel aircraft via "jet propulsion", i.e. by expelling high-velocity gasses (usually primarily air) through propelling nozzles.
Jet engines are engines which propel aircraft by jet propulsion, ejecting high-velocity exhaust gasses through propelling nozzles to generate thrust that moves the aircraft. In common use, the term refers specifically to airbreathing jet engines, which require a continuous supply of outside air in order to function. The most-commonly-used types of jet engine are the turbofan (including the geared-turbofan) and turbojet; the ramjet and scramjet are much less common, and seen almost exclusively on supersonic and/or hypersonic aircraft, while the motorjet is a very early type of jet engine which is mainly of historical interest.
Jet engines are commonly found on transport-category airliners, as well as many corporate aircraft.
More information on jet engines can be found on Wikipedia.
Related Aircraft Propulsion Tags
- piston-engine for reciprocating engines, usually gasoline powered. Mainly used on light aircraft.
- turboprop for turbine engines which drive a propeller to generate thrust rather than using jet propulsion.
- turboshaft for turbine engines which are used to provide electrical, hydraulic, and/or pneumatic power, rather than directly for propulsion.
- rocket for engines which carry an onboard supply of oxidizer in addition to fuel, and do not need to take in outside air.