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"Paul L" wrote in message ...
What is the 'speed to length ratio"? Are you referring to square root of the waterline? Paul Yes, the speed to length ratio is the speed of the boat divided by the square root of it's sailing length. The units are feet and knots. The ratio gives a feel for how fast a boat is when corrected for length. A speed to length ratio of 1.34 is the speed of the wave that has a length equal to the sailing length of the boat and is called the "hull speed". Hull speed is a topic that has been discussed to death on this board in the past, but you could google it if you really want to know. Anyway, the speed/length ratio comes out in weird units (feet per radical knots) so it has been replaced by the Froude number in most new work... Cheers, -- Tom |