Page:Popular Science Monthly Volume 58.djvu/629

Rh feet, or until the mixture was burned out. lie claims that it sails along evenly, balancing perfectly, and that it may be steered by the rudder. He prefers to fill the tank of the car with liquid air, on the ground that it furnishes a maximum of stored power with light weight. The air is exhausted and expanded through the nozzle at the top of the pipe. Mr. Moore says:

"The nozzle is placed at the top of the pipe, so that the push will act directly on the string of the kite and not push the car out of plumb, nor disturb the equilibrium of the machine. The kite is attached to the machine by wires, which allows it to balance itself automatically. Tin's property would be destroyed if it was attached rigidly

to the balance of the machine. The method of attaching the wires is original and adds to the stability of the kite. The wheels are not necessary for the locomotion of the machine in the air, but are necessary in starting and alighting. In starting the machine, it is placed in an open road, and when the power is applied it runs along on the ground, gathering speed and giving the kite lifting power. When the machine has attained the necessary speed, it will leave the ground at a slight angle and continue in the air as long as it is forced ahead at sufficient speed to sustain its weight on the aeroplane. In alighting, the power should be shut off slowly until the machine settles to the ground, where it would slow down and stop."