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Unformatted text preview: The righting moment essentially goes at once a hull is out of the water, because the there is no more loss of buoyancy on one side and gain of buoyancy on the other, as roll increases. You have left only the center of mass against buoyancy at the submerged hull. As the angle increases further, the righting moment arm decreases with the cosine of the roll angle. A proa is an unusual sailing boat with one large hull, and a very light pontoon on a long arm. Proas are doubleended you keep the pontoon on the leeward side! ~ 2b cos / 5 liftoff angle! righting arm heel angle MIT OpenCourseWare http://ocw.mit.edu 2.017J Design of Electromechanical Robotic Systems Fall 2009 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms ....
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This note was uploaded on 11/29/2011 for the course CIVIL 1.00 taught by Professor Georgekocur during the Spring '05 term at MIT.
 Spring '05
 GeorgeKocur

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