Friend's "clever" idea to cut mast off at deck... - Page 4 - SailNet Community
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post #31 of 33 Old 06-12-2018
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Re: Friend's "clever" idea to cut mast off at deck...

Originally Posted by SailingUphill View Post
Jeff... Wavelength 24 has been easily the best sailing boat I've ever been on. I loved the Capri 25 it sailed awesome... The S2 7.9 even better. The Wavelength 24 even better than the others.

Which is why the Laser 28 is so intriguing to me. You've spoken highly about it many times before... and there is one for sale, or is it sail...

Wife hates me right now.
Has it already been two years? Ready for your new boat already? What happened to the J92 idea?

West Wight Potter 14 "Lemon Drop"
Oceanside CA
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post #32 of 33 Old 06-12-2018
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Re: Friend's "clever" idea to cut mast off at deck...

j92, too costly for a soggy balsa deck. Haven't seen a layup on a J that has lasted. Maybe I've only seen poorly kept ones, but they churn my stomach, both beautiful and poorly laid up.

Freedom, a 1983 C&C 32 sailing Smith Mountain Lake, VA
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post #33 of 33 Old 06-13-2018
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Re: Friend's "clever" idea to cut mast off at deck...

Originally Posted by Jeff_H View Post
because of the point loads of the boom, and vang, (and the couple that they form) and the triangular loads from the sail, the finite element analysis generated moment distribution curves for masts that I have seen, show that the actual max moment occurs above the deck line in the area between the boom and the deck. This zone also experiences the maximum torsion, with max sheer occurring at the deck line.
I'm sure you are right. I haven't done any analyses of sailboat masts myself, and my comment was based only on a visual appraisal of the expected behaviour.

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The only dumb question is the one that you didn't ask because you thought it would make you look dumb.
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