Difference between flight hour and flight cycle?

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Answers:

Does anyone have a detailed list of American Airlines' fleet?

I am assuming, from your question, you are asking relative to aircraft, rather than pilot time logged. Flight hours are just that, the time an aircraft is in flight, legally defined as time from take-off to landing. Pilots are legally allowed to log their flight time from engine start to engine shutdown at the end of the flight under FARs. Cycles, on the other hand, can refer to several things. For pressurized aircraft, each time during which the cabin is pressurized and de-pressurized (typically once each per flight) is considered a pressurization cycle. Turbine engines (turboprop or jet) also record cycles, with each start and shutdown considered a cycle. These are important for maintenance intervals. Piston-powered fixed wing aircraft, except for pressurized aircraft, typically do not log cycles.

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What is a good company that will charter LARGE jets?

310 pilot is right, just one consideration: turbines usually count a cycle every time take off power is applied. If you start the engines for ground taxi or system checks, that does not count.

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