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post #40 of Old 04-07-2013
smurphny
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Re: Modern Hull forms and Motion Comfort

Jeff, I understand what you're getting at in your explanation of the relative entry effects of plumb vs overhung bow but I see more factors in the equation than that. There are two factors that I see which throw large variations into the relative overall motion of a hull. One is that the acute angle of the bow and the amount of overhang vary widely and affect the relative force in some complex ways. The other is that unless the angle created by a wave face equals the angle of the overhang, there is a varying time factor as the crest of a wave proceeds along the length of the overhang. Depending on the slope of the wave face and the shape of the hull, the actual force over time transmitted to the hull would vary widely. I don't think it's as easy as just saying that the plumb entry makes for a gentler ride across all conditions. I realize this an old thread but the topic is relevant.

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Last edited by smurphny; 04-07-2013 at 03:22 PM.
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