I thought I had read where if you filed the trailing edge of the rudder very lightly on just one side at about 40 degrees that it broke up the cavitation of the two flows coming back together and reduced vibration (from this cause). Can anyone help to verify this? Or to privide what the trailing edge should be (blunt, evenly angled, rounded or one sided)?
I have another person with the problem and I remember reading that somewhere regarding cat rudders and would like to verify this.
Thanks. Paul
rudder vibration
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Posted: Feb 29, 2008 - 06:20 PM
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Posted: Mar 02, 2008 - 06:51 AM
i've heard smoothing the mould line out of the LEADING edge of the rudder can help vibration problems, never heard trailing edge. As far as drag is concerned i think you want the trailing edge to be as sharp as practical for the material -
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Posted: Mar 08, 2008 - 04:11 PM
A blunt trailing edge will give a hum or vibration make them as nice and sharp as you can. -
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Posted: Mar 14, 2008 - 11:10 AM
correct, I would sand down to tapered, fine edge.
some people like the hum sound. -
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Posted: Mar 24, 2008 - 08:56 PM
Thanks guys. I guess I was wrong what I had thought I had read. Sharper does make more sense so will go with that.
