PaddleWise by thread

From: Kenneth Cooperstein <cprstnc1_at_optonline.net>
subject: [Paddlewise] Rules of the Road
Date: Wed, 02 Jun 1999 23:54:11 -0400
Indeed the 12 knot shell I was referring to would be an eight, which can
easily keep up this pace for a three mile race.  The reason it has
difficulty maneuvering is not because everyone is facing aft (the cox
faces forward and he steers) but because the hull is very long and the
rudder is very small.  A single can do the same course at approximately
eight knots.

It would appear that you are basing your assertions on the usual formula
used for displacement hulls (i.e. 1.33 x square root of LWL).  However,
when hulls become very narrow (a racing single has a beam of only 11")
this formula is no longer accurate, as is demonstrated by Hobie cats all
the time.  If you look at an eight moving at speed, you do not see the
usual bow wave that displacement hulls cannot climb over.

While some racing kayaks are very narrow and fast, most of the folks
here are paddling boats with 23" beams.  When I'm out in the harbor in
my rec racer (13" beam shell), the kayakers stop paddling to  see if
they have run aground.  The only way you could think your kayak was just
a hair slower than a shell is if you based your conclusion solely on
theory or were racing against an Alden Ocean Shell.

Ken Cooperstein


***************************************************************************
PaddleWise Paddling Mailing List
Submissions:     paddlewise_at_lists.intelenet.net
Subscriptions:   paddlewise-request_at_lists.intelenet.net
Website:         http://www.gasp-seakayak.net/paddlewise/
***************************************************************************

This archive was generated by hypermail 2.4.0 : Thu Aug 21 2025 - 16:32:59 PDT