His method was seldom seen in competition boats. I prior to carving, is from his 1934 book. The vertical lift method was favored by the Marblehead area builders, on grounds that it made it easier to construct a symmetric hull. Sawed frame, bent frame, and cold-molded. In the sawed-frame method, the frames are cut from material such as birch aircraft plywood and the planks laid over them.
Planks are generally cedar.
The result is a hull whose internal structure must be added in the form of transverse or diagonal braces. The diagram below, again from Moore's book, shows a typical plank over bent frame hull. The bent frames are usually oak, with the planking again being cedar. Here we see the master yacht designer N.G. Herreshoff building a sailing model with planks over steamed frames. The garboard strakes have just been laid in and are clamped for gluing.