130,623. Tarrant, W. G. Nov. 27, 1917. Cars and cabins.-The fuselage is built up upon a frame composing main circular girders A and light former ribs C with longerons B at rightangles to them. The main girders consist of two concentric wooden circles D, E braced at F, G, with filling-pieces J fitted as shown. In addition to the main longerons B, lighter ones H connect the outer rings D. The longerons comprise main members K with braces L, Fig. 3, between them. Filling-pieces upon the longerons bring them up flush with the girders, and a sheathing of plywood is then put on.