Quote:
Originally Posted by RandyonR3
So if the design of the boat is a factor, which came first, the shoal or the fin.. was the boat designed for the fin and the shoal was an afterthought to that boat or the otherway around..
And is there any information that would show that the same boat might be designed differently (internal ballest on a shoal) depending on the keel used.....
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RandyonR3,
The question is rather broad and may not have an easy answer. When you design a boat you usually have a list of requirement from the owner or company that commissioned the design and you lay out an outline or sketch of the boat and refine it until the owner is happy with the look and feel of the boat. Then you start producing the finished drawings needed to build the boat. So the hull keel combination is developed as a package early in the process to suite the needs of the owner. If you want to talk in broad terms about the difference between a shoal draft and deep draft boat I think the tendency is to have more beam as the draft decreases and also lower the sailplan as the draft decreases. Almost everything else is open to discussion. As far as a boat designed to be both shoal and full draft using the same hull I think you get a compromise boat that may be fine in one version but deficient in some way in the other version. But of course nothing is carved in granite and a well designed boat can be a reasonable, but only a reasonable boat in both versions. If you want the best boat possible you need to design the hull keel combination together.
All the best,
Robert Gainer