of varying the angle and in a practical manner the best form to give the circular frame and opened in case the machine falls. of the wings, which are made to turn about their hori- propellers which it is intended to use for aerial pro- pulsion, and the variations in their efficiency accord- The… … operator sits upon a saddle just back of the motor. Three bicycle wheels are used to support the machine when it is upon terra firma. The machine is con- be added the weight of M. Vuia, which is 50 kilo- structed of light steel tubing and canvas. Its length boo, canvas, and steel tubing for the…
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