Do you stop the prop when your sailing.

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Blaise

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Jan 22, 2008
359
Hunter 37-cutter Bradenton
My source was my multi engine training in the late seventies. I stand corrected. Midnight Sun has a Martec folding prop. If the transmission is left in neutral it will spin the shaft. I put my boat in reverse while sailing.
 
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Benny17441

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May 24, 2004
7,179
CC 30 South Florida
The drag induced by a locked propeller is quite significant. This drag would translate to added stress on the transmission gears and thus Yanmar recommends it be allowed to freewheel. The moving gears are well lubricated so the wear and tear is minumum and your boat will gain close to one knot of speed.
 
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