CPC F01D 21/003 (2013.01) [B64C 11/06 (2013.01); B64C 11/30 (2013.01); B64C 11/325 (2013.01); B64C 11/385 (2013.01); B64F 5/60 (2017.01); F01D 7/00 (2013.01)] | 20 Claims |
1. A method for testing a propeller pitch angle function, the method comprising:
while propeller blades of an aircraft are rotating about a rotational axis, commanding, by a processor of a computing device, a pitch angle change of the propeller blades;
after said pitch angle change of the propeller blades, measuring a post-angle change rotational speed of the propeller blades;
comparing, by the processor of the computing device, the post-angle change rotational speed of the propeller blades to an expected rotational speed without the commanded angle change; and
issuing, by the processor of the computing device and based on said comparing, one of a test passed signal indicative of a passed pitch angle test and a test failed signal indicative of a failed pitch angle test.
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