On Fri, 21 Jan 2005 01:40:47 -0500, "Jack Painter"
wrote:

Did you mean "speed over the ground:"?

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No. When you are evaluating sailing performance you are usually
concerned with "Velocity", i.e., speed through the water. Obviously
SOG is important from a strategic and tactical viewpoint but sail
trim, sail selection and helming are first viewed with respect to
speed.