Join Date: Dec 2008
Location: Calgary, AB, Canada
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Re: Dead Reckoning
For you dead reckoners: What do you use to give you speed and distance covered?
Back before sat nav, gps and all, we used a log (a propeller and string towed behind boat and the mechanical device that gave speed and distance covered- seems you can only buy these used now). Seem relying on a thru hull log and its potential to get fouled without knowing is not reliable. With the mechanical towed log we would pull the towed propeller out of the water every 3 hours to check for fouling.
Knotmeter. If I start to get concerned about its accuracy, I pull it and clean it. You can check the accuracy with a dutch log.
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