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  #41  
Old 02-02-2007
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Quote:
Originally Posted by Sailormann
Have had both deck-stepped and keel-stepped. Prefer deck-stepped, the boat stays dry inside. Need to have a compression post or bulkhead underneath the mast step though - nothing else works. Have seen a boat that had a deck-step and a curved support inside that was supposed to disperse the compression load all over the boat. It did disperse it, directly out to the sheer - pushed the sides of the hull out. Headroom in that boat varies with windspeed...
That indicates how much load a rig presses on a hull, and also how a well-engineered post can do the job. How big is the boat?

For those who'd like to read up on rigging and masts, take a look at Rod Stephens' chapters in "Desirable and Undesirable Characteristics of Offshore Yachts," a technical book I edited about 20 years ago that's still relevant (and still in print). He and the other designer-writers (who include Bill Lapworth, Ted Hood, and Olin Stephens) look at ocean-going boats in a way that some might call conservative. The writers' track records are pretty good.
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  #42  
Old 02-02-2007
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Quote:
Originally Posted by johnsail
That indicates how much load a rig presses on a hull, and also how a well-engineered post can do the job. How big is the boat?

For those who'd like to read up on rigging and masts, take a look at Rod Stephens' chapters in "Desirable and Undesirable Characteristics of Offshore Yachts," a technical book I edited about 20 years ago that's still relevant (and still in print).
Thanks John. I will try to find a copy.

He and the other designer-writers (who include Bill Lapworth, Ted Hood, and Olin Stephens) look at ocean-going boats in a way that some might call conservative. The writers' track records are pretty good

It is hard to argue with the fact that S&S boats have never lost a mast due to design. (Apart from 1st mast in Intrepid.)
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