vOLVO PENTA PROPS

[imported_JOE G]

IN THEPAST 4 YEARS I HAVE GONE THROUGH 2 OF THE INBOARD PROPS ON MY VOLOVO STERN DRIVE DUOPROP .THE CONSENSUS IS CAVITATION, ALTHOUGH IT IS ONLY DETECTABLE IN ROUGH WATER. YOU CAN HEAR THE SPINNING AND RPM S ARE AFFECTED BRIEFLY. MY QUESTION IS WHEN I BOUGHT THE BOAT A 26 OSPREY IT CAME WITH AN AD41P DUO PROP WITH AN A4 TYPE PROP.... I CANNOT GET AN ANSWER ON QUESTIONS LIKE WILL GOING TO A5 OR A6 PROPS POSSIBLY HELP, OR CAN I USE THE C SERIES WHICH ARE STAINLESS .STEEL. HOWEVER IN ALUMINUM THE PROPS ARE 4 BLADES AND 3 BLADES IN STAINLESS THE PROPS ARE BOTH 3 BLADES.HELP I APPRECIATE ANY HELP YOU CAN OFFER.....THANKS JOE G