Double propeller drive for boats

Details Double propeller drive for boats Double propeller drive for boats

B - Operations, Transporting

63

H

115/12

B63H 1/14 (2006.01) B63H 5/10 (2006.01) B63H 20/00 (2006.01) B63H 20/12 (2006.01) B63H 20/16 (2006.01)

Patent

CA 1179208

APPLICANT: AB VOLVO PENTA TITLE: DOUBLE PROPELLER DRIVE FOR BOATS ABSTRACT OF THE DISCLOSURE A boat propeller drive with double, couter-rotating propellers is distinguished in that the after propeller has one more blade than the fore propeller and a smaller diameter than the fore propeller.

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