Join Date: Feb 2000
Location: Annapolis, Md
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Again, I have a problem with using anecdotal data on a small sampling to make a case. I have sailed traditional 26 footers that tracked well in a wide range of conditions (my folkboat for example), and a whole bunch of equally narrow traditional boats that tracked miserably. I am not sure what kind of boat that you own so it is hard for me to comment. I also want to point out that I have been agreeing that there is nothing worse than a poorly designed boat with a a lot of beam that results in wide transom and you may be unfortunate to own one of them.
But the original question was about boats with large transoms and how could they possibly handle well. It was not about about beamy boats that also had wide transoms.
Gerr says "moderately slender hull", he does not say extremely narrow. 9''8" beam on a 60 footer is extremely narrow. perhaps using a couple example to explain my point, I think that we would all agree that a late 1990''s era Hallberg Rassy 39 with a 12''-4" beam has a moderately narrow beam and a small transom. In comparison, the 40 foot Beneteau 40.7 which is at the racer and beamier end of the spectrum that I am speaking of, has a beam of 12''3. Similar beams. The 40.7 actually has a narrower beam to waterline length than the Hallberg, yet the Beneteau 40.7 has a much wider transom. Based on a conversation with an owner of a Hallberg Rassy 39 who delivered a 40.7 in heavy conditions, he felt that despite the short chord foils on the Beneteau, the 40.7 was easier to keep on course in a following sea.
While you are right that in a following sea, the water has a larger area to lift on a boat with a wider transom, the more aftward position of the center of gravity on a properly designed large transom boat means that there would not necessarily be a change in trim, and the finer bow would trick the water into thinking that this is a narrower boat helping the boat to track better, than a boat that has a fuller bow.