Related Clues:
- Type of aircraft engine
- Kind of engine for an airplane
- Aircraft where work routine switched and translated
- Aircraft driven by exhaust gases
- Kind of aircraft engine
- Work routine going up, strange being in plane
- Type of missile engine
- Supersonic propulsion source
- Plane power plant
- Black stuff for starter engine
- Aero-engine type
- Black sheep's first one making thrust
- Aeroplane powered by type of internal-combustion engine
- Simple form of aero engine
- Aeroplane powered by an internal-combustion engine