RE: [Paddlewise] [PaddleWise] flutter

From: Joe Federici <fedo_at_hudsonet.com>
Date: Tue, 12 Feb 2002 21:21:59 -0800
Jim Syder a well known squirt boat designer and paddle maker also 
talks about the use of holes to cut down on flutter. If I remember 
correctly it has something to do with breaking up the eddies that 
form on the backside of a paddle during a stroke.

JFF

>Among a very good description of the cause and cures for flutter peter
>wrote:
>  >>>>>>A few holes down the
>center of the blade could also have this effect, though I know of no one who
>has tried it.<<<<<<<
>
>In 1982 Frank Goodman told me that a hole in the center of the paddle blade
>would cure flutter. I later put a 1" diameter hole in the center tip area of
>a flat paddle blade as part of a lot of other changes I put that poor paddle
>through looking for the ideal paddle blades.  I didn't notice any effect on
>the flutter or anything else about the paddle from putting a hole in it.
>Maybe I need to drill some more holes in it (if I can find it again-a
>distinct possibility as I rarely throw anything away and the paddle was
>probably changed beyond sale-ability). What size would you suggest the holes
>be?
>
>Matt Broze
>www.marinerkayaks.com

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Received on Tue Feb 12 2002 - 18:21:11 PST

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