Aviation

Aviation

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

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Aviation > Powerplant

afterburner

Aviation; Aircraft maintenance

A component in the exhaust system of a turbojet or turbofan engine used to increase the thrust for takeoff and for special flight conditions. Since much of the air passing through ...

constant-speed drive (CSD)

Aviation; Aircraft maintenance

A component used with either aircraft gas turbine or reciprocating engines to drive AC generators. The speed of the output shaft of the CSD is held constant while the speed of its ...

compressor stall

Aviation; Aircraft maintenance

A condition in a turbine engine axial-flow compressor in which the angle of attack of one or more blades is excessive and the smooth airflow through the compressor is disrupted.

bottom

Aviation; Aircraft maintenance

A condition in the installation of a propeller on a splined shaft when either the front or rear cone contacts an obstruction that prevents the cone from properly seating inside ...

springback

Aviation; Aircraft maintenance

A condition in the rigging of an aircraft engine control in which the stop at the engine is reached before the stop in the flightdeck. The flightdeck control moves slightly after ...

exceedance condition

Aviation; Aircraft maintenance

A condition in which a parameter sensed by the EICAS exceeds the limits for which it is programmed.

hydraulic lock

Aviation; Aircraft maintenance

A condition in which oil drains into the lower cylinders of a reciprocating engine and leaks past the piston rings to fill the combustion chamber. If the oil is not removed before ...