Propeller Shaft Sizing Calculator

Calculate propeller shaft diameter based on engine power, RPM, and material per ABYC P-6

Input Parameters

Results

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Shaft Torque
ft-lb
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Min Shaft Diameter
in
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Next Standard Size
in

Reference

ABYC P-6: d = (16T/πSs×SF)^(1/3) SF = 0.75 for continuous rating Torque = HP × 5252 / RPM