Oct 6, 2022Liked by Pamir Sevincel

Thanks Sevincel

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Oct 5, 2022·edited Oct 5, 2022Liked by Pamir Sevincel

My comment is to item #2: Hover-Propeller Full Design Cycle - Performance and Acoustic

My full respect to the expertise and efforts described in the report. Just want to hint at a new potential approach to reducing propeller noise. It is through application of variable twist blades. Variable blade twist provides a quasy constant level (high level!) of propeller efficiency for a changing axial speed. High efficiency, theoretically, ensures low level of wasted energy, which may manifest in silent operation.

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