Propeller combination with non-cupped blades for a boat...

Details Propeller combination with non-cupped blades for a boat... Propeller combination with non-cupped blades for a boat...

B - Operations, Transporting

63

H

B63H 3/00 (2006.01) B63H 5/10 (2006.01)

Patent

CA 2041244

The invention relates to a boat propeller unit with double, counter-rotating propellers. The forward propeller is designed to function without cavitation, while the after- propeller is at least partially cavitating, being non-cupped, arid being made with a blade width of between 60% and 75% of the blade width of the forward propeller.

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