It features a tipless design, which means instead of leaving the blade tips free as regular propellers do, the Sharrow CX connects its six blades which are grouped in two triads back to the propeller shaft in a smooth, twisted curved surface.
Sharrow knew that one of the sources of cavitation are the tips of the propeller's blades, so he began to experiment with reducing (and ultimately eliminating) the tips through iterative design.
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