Aviation

Aviation

Dealing with vehicles or machines used in flight or propulsion through the air.

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Aviation > Airplane flying

turn-and-slip indicator

Aviation; Airplane flying

A flight instrument consisting of a rate gyro to indicate the rate of yaw and a curved glass inclinometer to indicate the relationship between gravity and centrifugal force. The ...

turning error

Aviation; Airplane flying

One of the errors inherent in a magnetic compass caused by the dip compensating weight. It shows up only on turns to or from northerly headings in the Northern Hemisphere and ...

ultimate load factor

Aviation; Airplane flying

In stress analysis, the load that causes physical breakdown in an aircraft or aircraft component during a strength test, or the load that according to computations, should cause ...

unfeathering accumulator

Aviation; Airplane flying

Tanks that hold oil under pressure which can be used to unfeather a propeller.

unicom

Aviation; Airplane flying

A nongovernment air/ground radio communication station which may provide airport information at public use airports where there is no tower or FSS.

unusable fuel

Aviation; Airplane flying

Fuel that cannot be consumed by the engine. This fuel is considered part of the empty weight of the aircraft.

useful load

Aviation; Airplane flying

The weight of the pilot, copilot, passengers, baggage, usable fuel, and drainable oil. It is the basic empty weight subtracted from the maximum allowable gross weight. This term ...