- Industry: Government
- Number of terms: 35337
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The act of rotating a turbine engine using the starter, with the ignition system deactivated. An engine is motored to force air through it to purge fuel fumes.
Industry:Aviation
The actual distance a propeller advances in one revolution through the air.
Industry:Aviation
The actual horsepower delivered to the propeller shaft of a reciprocating or turboprop engine.
Industry:Aviation
The acute angle between the chord line of a propeller blade and the plane of rotation.
Industry:Aviation
The acute angle between the chord line of a propeller blade and the relative wind. The angle of attack is affected by both the engine rpm and the forward speed of the aircraft.
Industry:Aviation
The adjustment of the breaker points of a magneto so they will begin to open at the time the magnet is in its E-gap position.
Industry:Aviation
The aerodynamic force produced by a propeller or turbojet engine as it forces a mass of air to the rear, behind the aircraft. A propeller produces its thrust by accelerating a large mass of air by a relatively small amount. A turbojet engine produces its thrust by accelerating a smaller mass of air by a much larger amount.
Industry:Aviation
The aerodynamic force that acts on a rotating propeller blade to increase its blade angle. The axis of rotation of a blade is near the center of its chord line, and the center of pressure is between the axis and the leading edge. Aerodynamic lift acting through the center of pressure tries to rotate the blade to a higher pitch angle.
Industry:Aviation
The airframe component that replaces the turbine engine tail pipe. It reduces the distance the sounds made by the exhaust gases propagate by converting lowfrequency vibrations.
Industry:Aviation
The altitude above which a reciprocating engine will no longer produce its rated horsepower with its throttle wide open.
Industry:Aviation
