Aviation

Aviation

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

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Aviation > Powerplant

turboprop engine

Aviation; Aircraft maintenance

A turbine engine in which several stages of turbines are used to extract as much energy as possible. The turbines drive reduction gears which in turn drive a propeller.

turboshaft engine

Aviation; Aircraft maintenance

A turbine engine in which several stages of turbines are used to extract as much energy as possible. The turbines drive shafts which are used to drive helicopter rotors, ...

cold-tank lubrication system

Aviation; Aircraft maintenance

A turbine engine lubricating system in which the oil cooler is in the scavenge subsystem.

hot-tank lubricating system

Aviation; Aircraft maintenance

A turbine engine lubricating system in which the oil cooler is located in the pressure subsystem. The oil is returned to the tank without being cooled.

air impingement starter

Aviation; Aircraft maintenance

A turbine engine starter that basically consists of a nozzle that blows a stream of compressed air against the turbine blades to rotate the compressor for starting the engine.

ultra-high-bypass (UHB) engine

Aviation; Aircraft maintenance

A turbine that drives a pair of ducted or un-ducted contrarotating propellers which have eight to 12 variable-pitch blades. These blades are very thin, have wide chords, and are ...

axial turbine

Aviation; Aircraft maintenance

A turbine that is turned by a fluid flowing through it in a direction that is approximately parallel to the shaft on which the turbine wheel is mounted.