A propeller design procedure incorporating new propeller blade sections has been developed to improve propeller cavitation inception. Two dimensional foil design procedures of Shen and Eppler provide geometry for a specified blade pressure distribution. Advanced propeller lifting surface design procedures then generate propeller geometry. Panel method analysis verifies final design changes. Resulting propeller geometries produce a specified blade pressure distribution with improved blade surface cavitation inception.

A series of new blade section model propeller s has been designed and tested for cavitation and powering performance. The new propellers show a 2-3 knot improvement in blade surface cavitation inception speed. The new section propeller s also show some Reynolds number effects on powering, requiring higher speed testing than conventional blade section propellers.

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