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S2 6.7/6.9/22 Forum

Re: GPS vs Knot Log

Posted By: Martin Radloff 6.9 # 93
Date: 6/30/03 8:46p.m.

Report: outside forum guidelines

In Response To: Re: GPS vs Knot Log (Steve Mafera 6.9 #94 NC Indiana)

Steve, That must have been quite a blow 7.8 with only the main up. I have a knot meter and GPS. Upwind with sufficient wind and pointing as high as reasonable I can do about 6 knots and that is theoretical hull-speed for a 6.9 I have corraborated that with the Gips and that one reads about a couple of tenth's higher. As far as side to side diviation, I have that too and it has to do with the location of the transducer. My sensor is foreward of the keel to the right and so if I am on starboard tack the paddle wheel is sometimes, depending on the wave action, exposed from the water and therefore looses speed.

Messages In This Thread

GPS vs Water speed -- Steve Mafera 6.9 #94 NC Indiana -- 6/29/03 4:41p.m.

GPS vs Knot Log -- Law Powell S2 6.9 #61 Denver -- 6/29/03 11:14p.m.

Re: GPS vs Knot Log -- Steve Mafera 6.9 #94 NC Indiana -- 6/30/03 6:41p.m.

 Re: GPS vs Knot Log  -- Martin Radloff 6.9 # 93 -- 6/30/03 8:46p.m.

Re: GPS vs Knot Log -- Steve Mafera 6.9 #94 NC Indiana -- 7/1/03 6:44a.m.

 

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