Quote:
Originally Posted by ishoot308
Yes, boat speedometers are notorious for being off. Since most of them work on water pressure there are many variables which can affect an accurate reading. A GPS is extremely accurate at determining your speed.
As an fyi,... My boat speedometer get progressively more inaccurate as I go faster. Between 10 and 20 mph my speedo is relatively accurate, but when I speed up to say 50 mph on my GPS, my speedometer on the boat reads 55 mph.
Dan
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What I noticed is when the boat is reading 35mph, the GPS is reading 45mph. Last thing I want to do is get pulled over for the "law that shall not be named"
