Powerplant

Powerplant

The complete installation of an aircraft engine, propeller, and all accessories needed for its proper function.

Industry: Aviation

Add a new term

Contributors in Powerplant

Become a Contributors

Powerplant

helical spline

Aviation; Aircraft maintenance

A spline that twists, or winds, around the periphery of a shaft. Helical splines are used to change linear motion into rotary motion of the shaft on which the splines are cut.

helical spring

Aviation; Aircraft maintenance

A spring wound in the form of a helix, or coil.

A spring-loaded coupling between a magneto shaft and the drive gear inside the engine. When the engine is rotated for starting, the impulse coupling locks the magnet so it cannot turn. The spring in ...

compressor surge

Aviation; Aircraft maintenance

A stall that affects the entire compressor and seriously restricts the airflow through the engine.

inertia starter

Aviation; Aircraft maintenance

A starter for a large reciprocating engine that uses energy stored in a rapidly spinning flywheel to turn the crankshaft.

abradable strip

Aviation; Aircraft maintenance

A strip of material in the compressor housing of some axial-flow gas turbine engines. The tip of the compressor blade touches the abradable strip, and wears, or abrades a groove in it. This groove ...