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Method for modifying engine loading through changing of propeller blade shape by bending a propeller blade edge to modify the section camber and pitch of the blade, and propellers made using the same
Method for modifying engine loading through changing of propeller blade shape by bending a propeller blade edge to modify the section camber and pitch of the blade, and propellers made using the same
The present invention is directed to a method of altering the pitch of a propeller through localized bending of its blades. To alter the propeller's pitch the camber of at least one of its blades is changed by bending a portion of a trailing edge, a leading edge, or both edges relative to a remainder of the blade. A bent portion can be located away from a tip of the blade at a distance that is less than or substantially equal to 60% of a radius of the blade, and bending preferably commences at a distance in from an edge of a blade of up to 50% of a section width of the blade. The maximum preferable change in pitch at any location on the radius due to bending is 30%.
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