Aviation

Aviation

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

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Aviation > Powerplant

in-line engine

Aviation; Aircraft maintenance

A reciprocating engine with all of the cylinders arranged in a straight line.

cam engine

Aviation; Aircraft maintenance

A reciprocating engine with axial cylinders arranged around a central shaft. Rollers on the pistons in the cylinders press against a sinusoidal cam mounted on the shaft to produce ...

blade station

Aviation; Aircraft maintenance

A reference position on a propeller blade that is a specified number of inches from the center of the propeller hub.

Airworthiness Directive

Aviation; Aircraft maintenance

A regulatory notice sent out by the FAA to the registered owner of an aircraft informing him or her of the discovery of a condition that keeps the aircraft from continuing to meet ...

major repair

Aviation; Aircraft maintenance

A repair to a component that if improperly done might appreciably affect weight, balance, structural strength, performance, powerplant operation, flight characteristics, or other ...

collector ring

Aviation; Aircraft maintenance

A ring made of thin corrosion-resistant steel tubing that encircles a radial engine and collects exhaust gases from each cylinder. The ring ends with a connection to the exhaust ...