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post #6 of Old 07-30-2011
billyruffn
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Enough with the math! Vectors, smectors!

Put the coordinates of Point B in the GPS, note the bearing thereto, use that heading to start and after a few minutes note the COG on the GPS. Adjust your heading so that the COG equals the bearing to Point B.

And dont’ tell me about losing power and GPS failure and all that. If that happens you’re just SOL.

PS -- it helps to plot a line from A to B on a real chart so you can be sure there are no hard things lurking along the rhumb line.

But seriously, in small boats it’s hard enough to steer within 10 degrees of the desired heading. So pre-planning a few degrees of windage is an interesting exercise, but it shouldn’t replace knowing where you are and where you’re going in real time. That’s what makes GPS so great!
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