Hal replied to me: > Hi Onno, > I probably should have listed the URL for people to look at for their > own instead of using my listing. The Block Co-efficient was .62 in the > formula - which can be varied depending upon the hull. Unfortunately, I'm not > conversant enough to know which direction the Block Co-efficient is supposed > to change. I get the feeling that the closer the Block Coefficient gets > to 1, the more it resembles an actual rectangular shape with no curves, > while the closer it gets towards 0, the slimmer the hull is with perhaps a > deeper cutting centerline. But, it is a step in the right direction :) > > Hal
Hello Hal, I think there are two factors at work. First, there is the block coefficient, which describes the shape below the waterline, and then there is the ratio between the draft and the depth (how much of the ship is above the waterline). There were countless variations, refinements, and experiments during the age of sail, but by and large I'd expect very similar values for both parameters in all line of battle ships. The lowermost gunports had to be high enough, and more gun decks required a deeper hold for stability. When designers went too far, they'd get a http://en.wikipedia.org/wiki/Vasa_(ship) (the story is a bit more complicated, of course). Regards, Onno _______________________________________________ GurpsNet-L mailing list <[email protected]> http://mail.sjgames.com/mailman/listinfo/gurpsnet-l
