EVH Tech: e-Propellers: Quiet

Updated by Bill Lofton 11/11/16


Courtesy of NEUFORM, Kerry Skyring and DW, Daily Journal of Commerce
 

Electric aircraft are generally expected to be silent, but propellers make noise. Most people are surprised by the amount of noise remaining after an airplane’s gasoline-powered engine is replaced by an electric motor.

Reducing electric aircraft noise requires reducing propeller noise.
 

Making Quieter Propellers

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Blade Tip Noise

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Blade Tip Speed

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Candidate e-Propellers

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Other Propellers Claimed To Be Quiet

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Quiet Aircraft

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Quiet Propellers Press, Other Info, and Videos

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