Re: [Paddlewise] More on "Yare" [was: retrofitting bulkheads]

From: Alex Ferguson <a.ferguson_at_chem.canterbury.ac.nz>
Date: Thu, 22 Feb 2001 10:00:57 +1300
>Rh -
>The fact that I moved the sheer clamps outboard of the hull skin while 
>keeping the design beam at the sheer -- originally intended merely to 
>allow me to attach the deck with no mechanical fasteners -- has meant that 
>the boat is even less stable than designed (narrower waterline beam on an 
>even closer to semi-circular submerged cross-section).

With mine, I put in a keelson as per the Skua 16 in Sea Kayaker magazine, 
added about 10 degrees deadrise and made the beam as narrow as it would go 
without rising the middle higher than the ends. There is also a "proper" 
bow to bring the length up to 5 metres and keep some flare right out to the 
end of the bow. The stern also carries its depth a little more with a 
transom for fitting a rudder to (adds just a little more flare there too).

>RH -
>I sit directly on the hull skin to keep the center of gravity as low as 
>possible. The curvature of the hull is severe enough to compress the 
>gluteus maximus to the point where the lower ends of the pelvic bones are 
>cushioned and I find this seating position quite comfortable for extended 
>periods without losing feeling in my legs.

With the deadrise I'm at least an inch if not more, maybe 2, above the very 
bottom of the keel on the foam seat. With rudder and ready for sea - 18 kg 
(39 lb). Fast - very; tippy - very; loaded for multiday tripping - stable 
with a lovely easy motion.

Alex
.
.
Alex (Sandy) Ferguson
Chemistry Department
University of Canterbury
New Zealand

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Received on Wed Feb 21 2001 - 13:01:18 PST

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