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A ground adjustable propeller on a Rotax 912S engine, mounted in a 3Xtrim 3X55 Trener. A ground-adjustable propeller is a simple type of aircraft variable-pitch propeller where the blade angle can be adjusted between pre-set limits of fine and coarse pitch. [1]
The simplest mechanism is the ground-adjustable propeller, which may be adjusted on the ground, but is effectively a fixed-pitch prop once airborne. The spring-loaded "two-speed" VP prop is set to fine for takeoff, and then triggered to coarse once in cruise, the propeller remaining coarse for the remainder of the flight.
[7] [8] During World War II, McCauley manufactured 20,000 ground-adjustable solid-steel propellers. [1] In 1946, the company invented the forged aluminum propeller. [7] [8] In 1947, McCauley developed the first all-metal propeller for light aircraft (such as single-engine Cessnas and Piper Cubs) — a fixed-pitch prop using the trade name "MET ...
Reversible propellers are those where the pitch can be set to negative values. This creates reverse thrust for braking or going backwards without the need to change the direction of shaft revolution. While some aircraft have ground-adjustable propellers, these are not considered variable-pitch.
Ivoprop produce both in-flight adjustable and ground-adjustable propellers of unusual design. Whereas conventional variable-pitch propellers rotate at the blade root, the Ivoprop design has its blade fixed. The blade is hollow, containing a steel torsion rod fixed to the blade tip.
Whirl Wind Propellers Corporation, is an American manufacturer of composite propellers for homebuilt and light-sport aircraft. The company headquarters is located in Piqua Ohio. [1] The company makes composite ground adjustable aircraft propellers as well as replacement blades for the Nanchang CJ-6's V530 propeller and also airboat propellers ...
The military has a fleet of nearly 400 Ospreys, a unique aircraft with two adjustable propeller rotors that can rise vertically like a helicopter and fly horizontally like a plane.
It is intended that the RV-12 will be powered by a Rotax 912ULS engine of 100 hp and equipped with a Sensenich composite ground-adjustable propeller, although as a kit aircraft the builder can complete it as they choose. [8]
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