Propeller for boat

Details Propeller for boat Propeller for boat

B - Operations, Transporting

63

H

B63H 1/20 (2006.01) B63H 1/14 (2006.01)

Patent

CA 2649983

A propeller for a boat includes a hub having a tail portion with an outlet, and a plurality of blades equiangularly disposed on the hub. The outer periphery of the tail portion defines with a center axis of the hub a distance gradually decreasing toward the outlet. Thus, the propeller has the advantages of reducing the drag and increasing the propulsive force of the boat when it rotates.

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