>> ... and giving it an airfoil shape will make it work better anyway. > > Not to get into the nits too far, John, but do you think that > applies to skegs > as well? My Pintail's stock skeg is basically slab sided with the edges > bevelled off, but there's certainly no attempt to have the shape > be a foil. I > use the skeg deployed at about 30 degrees when I'm lazy and want > the boat to > do part of the tracking, and deployed more when I'm surfing down following > seas; it does develop a lot of chatter when it's down more than 20 to 30 > degrees. Would fairing it out to more of a foil decrease the vibration? > > Jack Martin Would foil shaped skegs be better than flat skegs ? Interesting question. Am I right in thinking that as the skeg can't rotate it's angle of attack remains at zero degrees, and thus the skeg can't be stalled when the boat is travelling straight ? Would a foil shaped skeg therefore be any improvement over a flat skeg during straight forward paddling? I'm I also right in thinking that if the boat is making a lot of leeway, or ferrying across a stream, or under turning input, particularly if the boat isn't heeled, then it may be possible to stall a flat skeg ? My guess would be that foil shaped skegs may be of more benefit during turns. Would a boat with a foil shaped skeg reduce drag and maintain more speed during heeled turns ? My practical experience is that the increased drag of a deployed skeg is pretty much undetectable, but I'm always interested in a free lunch, as it were .... Colin Calder 57º19'N 2º10'W *************************************************************************** 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 Fri Nov 20 1998 - 06:29:55 PST
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