Jerry, I reckon the science is just fine, since Archimedes Principle has made the grade for some 2400 years and counting. Too bad someone with extra time has not run an empirical curve of draft vs. displacement so the rest of us can know when to hike up the skirts, so to speak. Presumably a marine architect can do that easily with mathematics, but that's the hard way for the rest of us. The amazing thing is that the boat moves along tolerably well with all that weight aboard, presumably because the submerged shape is right. I expect acceleration is a bit affected, though, which sucks in a tacking duel. On the other hand, who would race with a motor, 9 gallons of gas, 10 gallons of water, a battery, and 200 lbs of miscellaneous gear on board, not to mention some biomass? Anyway, a hellava boat, I say. Enjoy your 4th! Tom Jenkins M17 Scintilla . ----- Original Message ----- From: "jerry" <jerry@jerrymontgomery.org> To: "For and about Montgomery Sailboats" <montgomery_boats@mailman.xmission.com> Sent: Saturday, July 04, 2009 3:58 PM Subject: Re: M_Boats: draft
Wow- that's really loaded! According to the original drawings, when sitting on the waterline it should draw 19.25". So much for science.
jerry ----- Original Message ----- From: "Tom Jenkins" <tjenk@gte.net> To: <montgomery_boats@mailman.xmission.com> Sent: Saturday, July 04, 2009 11:31 AM Subject: M_Boats: draft
Folks, It might be useful to know a boat's draft under various conditions, so I did some measurements, and wonder if others' estimates are in the same ballpark. Fully-loaded (and I mean fully) for two weeks on saltwater, the keel reached down about 27" (presumably 42" with the centerboard down). My IdaSailor rudder sticks down another foot, for a total draft of 54".
Tom Jenkins 2004 M17 Scintilla _______________________________________________ http://mailman.xmission.com/cgi-bin/mailman/listinfo/montgomery_boats
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