> >3) By effectively increasing the waterline length of the hull, they create > >less drag than thin rudders (a direct contradiction of point 3 in the > >previous paragraph). > > Simply not true unless the rudder has unusually huge volume. I have not yet > seen a rudder that had enough volume and was properly faired into the hull > to do this. Even when the rudder is faired into the hull (ala Dagger) the > flow around and over the edges disrupts the wavemaking. I think to get any > effect one would have to have an effective seal between hull and rudder. I have seen in marathons a couple of home designed/made touring kayaks where the rudder was the articulated last 50 cm or so of the stern, tapering from 10 cm to 0 cm over that lenght, and completely fair with the lines of the hull. They looked very sleek and this case would be an effective part of the LWL. The appearance paddling astern of such boats was bizarre (or maybe it was the delerium of fatigue after a day of racing), as the rudder corrections wiggled the stern and made it look as though the kayak was swimming through the water. -- jim *************************************************************************** PaddleWise Paddling Mailing List Submissions: paddlewise_at_lists.intelenet.net Subscriptions: paddlewise-request_at_lists.intelenet.net Website: http://www.gasp-seakayak.net/paddlewise/ ***************************************************************************Received on Thu Apr 02 1998 - 19:38:20 PST
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