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Old 09-06-2011
Tempest Tempest is offline
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I might try using a couple of instruments to measure and compare speed. Check your speed over ground with a GPS, get a knot compare to your paddle.

There's also the effect of 1 to 3 meter waves...approx..3 to 6 americanese..
Is it always the same angle of attack to the waves?

I know you don't have currents as we know near the ocean...but I believe you have some current up there due to river flows, wind driven, outflows from storm sewers etc....

Waves, and currents will affect speed. Here on the hudson river...we have a big underwater profile called a keel...if sailing at a right angle to the will have a greater effect..

The fact that your speed is affected always on the same tack..may rule these issues out...but something to consider.....
Sabre 34
Morgan, NJ
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