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Old 25-04-2011, 15:29   #1
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Boat Design

I'm new to this forum and and I have a question.
What makes a boat roll down wind at sea? Full keel, fin keel, beam, or hull shape? I've heard this problem associated with a Cape Dory as well as a Cal 39. Two very different boats.
thank you for having me.

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Old 25-04-2011, 15:34   #2
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Re: Boat design

I remember hearing that the IOR era boats were notorious for this behavior. They were mostly fin keelers with overhangs and narrow sections fore and aft, round and portly amidships.

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Old 25-04-2011, 15:38   #3
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pirate Re: Boat design

Waves and the weight of the rig and sails....
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Old 01-05-2011, 17:42   #4
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Re: Boat Design

I don't think there is any way to keep a boat from rolling going downwind. Ever heard the song "Rolling Home"? A boat will roll more if it has a narrow beam and tall rigging.
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Old 01-05-2011, 17:57   #5
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Re: Boat Design

have marginally solved this problem over 100 000 miles.

keep the wind about 15-20 degrees on the aft quarter,pole out the genoa,staysail hard in and 1-2 reefs in the main fully out with a preventer.


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