ground-adjustable propeller
ground-adjustable propeller
A propeller whose pitch can be adjusted only on the ground when it is not running.
References in periodicals archive
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A variation on this theme is the ground-adjustable propeller. As its name implies, a qualified technician with the correct tools can change the blades' angle of attack on the ground, allowing per-flight optimization for cruise or climb, but not both.
This ground-adjustable propeller proved to be crucial to the success of Charles Lindbergh's solo transatlantic flight in 1927.
To qualify as an LSA the airplane (we'll skip copters, gliders and such) must have fixed landing gear and a fixed-pitch or ground-adjustable propeller, no more than two seats and a maximum takeoff weight of 1320 pounds.
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