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Show Pllotless Plane Runs Two Days Paris. -A system of pilotless airplane air-plane control has passed a two-day test satisfactorily, according to experts who supervised the trials with a 300-horsepower 300-horsepower passenger carrying government gov-ernment biplane that flew over Etampes aviation field on Wedn-esday and Thursday for several hours. The plane going nloft w-ith no one aboard, responded to control by Hertzian waves from the ground, performed all the customary evolutions, and then landed safely. During the tests the machine was frequently lost from sight in haze and clouds, but it was always under control. The system was developed by the Experts De-marcy, De-marcy, Debouche and Percheron. |