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post #82 of Old 01-10-2013
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Re: Blue Jacket 40 (new racer/cruiser)

Originally Posted by PCP View Post
Even considering only righting moment do you have considered how much more RM that modern big draft keel will provide comparing with the Catalina one, knowing that the First has a bigger B/D ratio than the Catalina?
We are comparing the shoal draft boats.. that means the First is only a foot deeper. As I said earlier.. it is doubtful the First produces any more RM with the keel because the Catalina gains 700 pounds in the weight plus another 400 pounds in the use of lead. Clearly the Catalina keel COM is well below the hull and arguably lower than the First.

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