How much fuel does a jet engine consume?

Jet engines generally consume significant amounts of fuel during operation. The fuel quantity a jet engine consumes varies depending on factors such as engine size, thrust setting, aircraft efficiency, and flight conditions.

As a general guideline, here are some estimates for fuel consumption rates of typical jet engines:

- Small turbojet or turbofan engines for light aircraft, commuter jets, or business jets: ~700-1200 gallons per hour (GPH).

- Medium turbofan engines for narrow-body commercial aircraft: ~3,000-4,500 GPH.

- Large turbofan engines for wide-body commercial aircraft: ~7,000-11,000 GPH.

- Military jet engines (afterburner lit): Over 20,000 GPH.

Note that these are approximate figures and actual fuel consumption can vary. Additionally, newer jet engines are continuously being developed to improve fuel efficiency and performance.