[alberg30] Re: Prop Ghurus assist, please!

[Gordon E. White]

From: "Gordon E. White" <gewhite at crosslink.net>

Lee:
    I think your prop is too big. I have a 21 hp Westerbeke and spin a
13 x 11  3-blade. It does not limit me - I can run full RPM of about
3,500 if I want (which is trying to push me over hull speed). My only
problem is at idle it runs about 3 knots which makes for tricky docking.

    Definitely if you can't get rated RPM you have too much prop. Isn't
a 14 pretty close to the aperture in the rudder? I think you are lugging
the engine & getting cavitation around the rudder. Not an expert though.

                                        - Gordon White


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