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Wind-tunnel Tests and Analysis of Three 10-foot-diameter Three-blade Tractor Propellers Differing in Pitch Distribution

Jean Gilman

Abstract

Report discussing an investigation of the effect of variations in pitch distribution on propeller efficiency at low Mach numbers. The three 10-foot-diameter propellers tested consisted of three blades mounted on a streamline body and were tested for a blade-angle range from 15 degrees to 60 degrees. Information about the propeller thrust, power coefficients, force-balance measurements, and total pressure in the propeller wake is provided.

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Available abstract

Key concepts: Propeller, Blade pitch, Thrust, Wind tunnel, Wake, Marine engineering, Mach number, Blade (archaeology)