turbofan
tur boh fan
- n an airplane propelled by a fanjet engine
- n a jet engine in which a fan driven by a turbine provides extra air to the burner and gives extra thrust
- As soon as it was airborne, the giant and graceful Boeing 707-120Bthe latest in jetliners and the pride of American Airlinesrose dramatically, boosted by its new turbofan .
- There are 190 C17As in service; the aircraft is propelled by four turbofan engines (of the same type used on the twin-engine Boeing 757) and can drop 102 paratroopers at once.
- Infrared detection is difficult because the turbofan engine emits little heat.