Re: Potter 19 keel lock down - a sorry tale

Keith Sisterson (lks@ll.mit.edu)
Thu, 21 Oct 1999 14:36:35 -0400


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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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At 01:44 PM 10/20/99 -0400, you wrote:
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> West Wight Potter Website at URL
> http://www.lesbois.com/wwpotter/
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>In a message dated 10/20/99 8:38:51 AM Pacific Daylight Time,
>JBlumhorst@aol.com writes:
>
>> Now that's the way a keel trunk ought to be
>> built! Jerry's keel trunk on HMS 18 #48 has side walls 2.5 inches thick,
>a
>> front edge even thicker, and his keel ties down with a simple piece of
>line
>> to a jamming horn cleat on the aft wall of the trunk.
>
>WUPS! a type. The trunk on Jerry's boat is 1.5 inches thick on the sides,
>consisting of 1/2" of fiberglass on the inside, and two pieces of 1/2"
>plywood around that, all wrapped in a 1/6" thin glass and gelcoat outer skin.
> It's 3" think at the aft edge (1/2" of fiberglass and 2.5" of wood).
>
>Sorry for the mis-information.
>
>Fair winds,
>Judy B
>1985 WWp-19 #266, Redwing
>

The trouble with a very strong keel trunk is that when the keel hits a rock
if the trunk is rigin the force is transmitted to the bottom of the hull.
It that is strong enough then no harm done, but I would rather have a
wooden or nylon
pin break and even some damage at the top of the trunk than
risk damage at the deepest part of the boat.

Regards,
Keith Sisterson
P-19 #460 <TBN>