I got a strange vibration/sound coming from outside the hull, under the cockpit floor, when motoring in my 37. After seeing two separate mechanics I was told it was the rudder vibrating and creating harmonics as the water pushed by the Maxprop flows by it. Apparently harmless but annoying and to me unsettling nevertheless. I cannot reach cruising speed with that sound and vibration under my feet. Any ideas? I have the original 2-bladed prop. Should I revert to original, or can anything be done about the Maxprop? I talked to the Maxprop people and I had the pitch set according to their specs but it looks like the C&C rudder design doesn't like it. Christian Tirtirau, C&C 37 Northern Light _______________________________________________
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