propeller rpm
1propeller beat noise — The noise produced by multi engine aircraft propellers rotating at slightly different RPM. Each propeller produces its own audible frequency, which beats the frequencies of other propellers nearby. Synchronizing the propeller RPM eliminates this… …
2propeller synchrophasing/synchronizing — The maintenance of correct phase difference between adjacent propellers of a multiengine aircraft throughout the normal flight range. This phase difference results in what is known as propeller beat noise. Synchronizing the propeller RPM reduces… …
3Propeller speed reduction unit — A Propeller Speed Reduction Unit (PSRU) is a gearbox or a belt and pulley device used to reduce the output revolutions per minute (rpm) when compared to the higher input rpm of the powerplant. These arrangements allow the use of small… …
4Propeller — A propeller is essentially a type of fan which transmits power by converting rotational motion into thrust for propulsion of a vehicle such as an aircraft, ship, or submarine through a mass such as water or air, by rotating two or more twisted… …
5Propeller governor — History = In the history of development of the airplane it became apparent that it is necessary to improve aircraft performance. One of influential factors was the propeller design in relation to the most efficient blade angle. The first… …
6propeller governor — A device that keeps the propeller speed constant irrespective of the forward speed and power. The governor is usually centrifugal and keeps the shuttle valve oscillating about the null position feeding oil to change the propeller pitch and thus… …
7Constant speed propeller — Cutaway constant speed propeller hub …
8Modular propeller — A modular propeller is a forged propeller using complex composite materials that has replaceable parts. Contents 1 Parts 2 In use performance 3 Patent 4 References …
9Controllable pitch propeller — A controllable pitch propeller (CPP) or variable pitch propeller is a type of propeller with blades that can be rotated around their long axis to change their pitch. If the pitch can be set to negative values, the reversible propeller can also… …
10constant-speed propeller — A propeller in which the pitch is adjusted automatically, so that the propeller revolves at a given rate dictated by the pilot and remains at that rate irrespective of maneuvers or throttle position. The pitch of the propeller is altered suitably …
