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Figs. 227, 228.
A Good Model. A simple and effective model is shown in Fig. 226. Lay out a light framework, as shown in Fig. 227. It is the combination of a tailless kite and a triangular box-kite. Three long sticks, a, b, c, are used for the triangular portion and three cross-sticks, d, e, f, are for the wing supports. A vertical post, g, about 14″×38″×8″ is used in the center of the rear (the wide part), to stiffen the frame and give an anchorage for the propeller shaft. Four light braces, h, i, j, and k, make it possible to use lighter material than one would suspect for the entire framework. In a model 3′ long, a, b, and c, need not be larger than 316″ square, but there must be no split or uneven places in a stick so small. The braces 18″×316″ would be plenty large. The two upper pieces, b, c, should be flattened on the inside of the front end so as to make them join together, terminating in a point. The lower spine, a, should be flattened on the upper side for the same reason. All three should be glued and lashed together with linen thread. A triangular block, l, should be placed about 4″ back from the front end with a strong cup-hook screwed in the side toward the rear, on which the ring of the rubber motor is attached. The block, l, must be well secured to the triangular framework with glue and thread. The cross-piece, d, is 30″ long and is bowed upward as is shown by Fig. 228. Piece e is 24″ long, 5″ in front of d, and both are 316″×14″. 18″×316″ will be heavy enough for f, and this should be bowed much more than d, and e. It will be necessary to steam this piece a little. Chinese rice
