* Working With Developable Surfaces

Developable surfaces are important to the home boatbuilder working with sheet materials like plywood, steel or aluminum. Developable surfaces can be formed from flat sheets without stretching, so the forces required to form sheet materials into developable surfaces are much less. In some cases, particularly with plywood, the forces required to form non-developable surfaces could be so large that the material is damaged internally. Another advantage of developable surfaces is that the development of such a surface is exact. When other types of surfaces are expanded the shape of the expansion depends on the distortion field applied to form it. If you are designing or lofting plywood or metal hulls you should understand developable surfaces and the methods for working with them.

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