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Old 09-07-2013
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Re: Interesting Sailboats

Quote:
Originally Posted by HMoll View Post
Can we start a "not complicated" short discussion of using B/D as an indicator of stability, to get THAT out of the way once and for all as well?
B/D is only an indicator if a boat has the same draft, the same kind of keel and the same hull form stability (same type of hull with a similar beam). That was generically the case with the new Oceanis 38 if compared for instance with a Pogo 10.50, even if the Pogo is even beamier considering that it is a smaller boat. However the Pogo has not only more draft but a considerably bigger B/D ratio and therefore is a more stiff boat. On these boats with huge form stability that will be more noticeably on the conditions I have referred.

Quote:
Originally Posted by PCP View Post
Humm, Oceanis are on the low end of ballast ratio. As I said, with a bigger rig, a boat that would be fast in all conditions except upwind with weather where the ballast ratio is fundamental to give power to the boat to go against waves, specially a fat one like the new 38.

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Back on this thread that subject was discussed at length as well has the importance of draft and type of keel, hull form stability to give a proper meaning to the B/D ratio.
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