DuoProp Propellers

[Bert Bergen]

I have a set of Volvo A 10 props on my 32 foot custom aluminum boat. Both props are cupped and I can still spin the diesel up to 2700 RPM. The max on my Perkins is 2400 RPM. I am underpropped however the A 10's are the biggest that I can get. I have 300 RPM that I cannot use which is a lot for a diesel. A couple of questions. Can I put on a set of B props and would anyone know what the calculation would be to determine the right set as I believe B's go from B1 through B6. I am assuming that the diameter is the same and only the pitch changes. Thanks

[GordMay]

Greetings and welcome aboard the CF, Bert.