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Old 01-31-2011, 06:52 AM   #9
koliver
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City: Saltspring Island
Vessel Name: Retreat
Vessel Model: C&L 44
Join Date: Nov 2007
Posts: 5,663
RE: locking through with a single screw

Tony;

I think you are overthinking the reaction of your boat to a thrust of reverse. In my experience with single screws; sailboats a plenty and 48' fishboat, plus keen observation of friends trying to raft to my boat, this is what I have learned. The first reaction to a thrust of reverse is to stop the boat. then you get some prop walk at the stern as the boat starts to move in reverse, then, and not until then, your bow starts to fall off to the other side. The rate of bow swing seems to be related to the side profile of the front portion of the boat. On sailboats with little or nothing in the water at the bow, the bow swings quickly. On massive former workboats, hardly at all.

Once you get out there, you will pick up the characteristics of your own boat quickly, then you can correct us all with actual performance data.
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