Propeller Aperture Calculator

Calculate clearances around propeller in aperture or strut for vibration-free operation

Input Parameters

Results

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Tip Clearance
in
--
Tip Clearance
% of diameter
--
Aperture/Tunnel Width
in
--
Blade Pass Frequency
Hz

Reference

Tip clearance: 15-20% of prop diameter minimum Aperture: 15%, Strut: 20%, Tunnel: 10% Insufficient clearance causes vibration and cavitation