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Kayak and Canoe Design Bulletin Board
Re: Wide sterns
Posted By: Hans Friedel In Response To: Wide sterns (sam McFadden)
Date: Monday, 17 June 2002, at 1:09 a.m.
: I was enjoying the images from meet at the beach (see the building site) and
: was excited to see Nick’s Aleutesque. I’m interested to read any comments,
: in particular from Nick, about the volume distribution and aft shapes of
: the design. Like several others, I have often wondered if sea kayaks could
: benefit from full aft sections - similar to light displacement sailboats.
: This last year I began toying with design and played for some time with a
: hull shape that had a wide stern, but for now I have left it alone in
: favor of a more normal looking “pointed” boat.: My concepts of hull shape come from “what looks good” rather than an
: understanding (none) of fluid dynamics. I have relied a bit on Kaper to
: keep me from straying too far from the norm, but have not yet obtained the
: necessary references to understand the empirical foundations for it - so
: its been a ‘black box’ tool for me.: I assume that pointed sterns are the norm because, except when surfing, we
: are operating in displacement mode. Also, playing with the wide stern
: shape raised a few questions about how to maintain tracking, without going
: to a shape like the SOF Aleut boats – which strike me as a bit tortured -
: or relying heavily on a skeg or rudder.: Thanks,
: SamPersonaly I feel safer in a more symetrical kayak special in rough weather. But a wider aft section makes the hull more stabel and you can make a narrower kayak.
Hans
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