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Show Pilotless Army the (men, nnd the ower pneumaiU" I us the inuscles." True in Bumpy Weather. In actual work, the announcement wild. IiuniJretU of autonmtlc tukeolfa and a number of automatic flights of ninety miles and more have been made. This "pilot 'Is capable of being mounted mount-ed In any type airplane and in bumpy weather, will hold a plane much s;eadier than a human pilot and will curry it in an absolutely true course regardless of fog or adverse weather renditions.' In the tests Just concluded the machine ma-chine used whs one of the small type, having a span of only twenty feet, a sixty horse power motor! capable of currying '2'yO pounds. Equipped - With Automatic Con-' Con-' trol Device It Is More Depend-' Depend-' able Than Human Pilot. HOST EFFECTIVE IS BOMEiNG Army Air Service Declares Results of Experiments Constitute "Most Important Post-War Development. Washington, D. CThe pilotless Briny airplane, equipped with an automatic auto-matic control device said to be more Accurate and dependable than any Ituman pilot, bn been developed to u point where it has made successfUi flights of more than ninety tulles, it . jwaa announced by the truiy air service. serv-ice. The announcement leclured the result! re-sult! produced utter ', long series of experimenta constiMied the "most liu-portaLt liu-portaLt post-war 5eveIopment of the fnany novel idea of 'new engines of ar. Experlmuits had shown it pos-: pos-: Bible, it was said, to shoot bomb laden planes, without pilots, at targets tar-gets on or off the ground with as- Minding 'accuracy. Ovoscope for Brains. Of the sivnnatlc pilots being ex- perimented 1th." the statement continued, con-tinued, "that widen has proven most successful to dale ecu be described as using a gyroacop for Its brains and bellows or pneumatics, similar to those used In player pianos, for Its muscles. "The ability of a buianced rotating teass, moving on frlctionless bearings to maintau Its position In space, so long as it Is not acted upon by out-Bide out-Bide forces, Is called a gyroscopic force. i This force Is mude use of in the sta bilizing and directing of the airplane ' " ' Bn a" true coiirse. Two separate and distinct gyroscope units are used for this purpose. The function of one Is to direct the lateral and longitudinal variations In flight and the other to maintain direction. "These gyroscopes are electrically driven from a generator geared to the ' airplane engine and run continuously during the flight The sense of direction, direc-tion, whether It be vertical, horizontal, or fore 0 aft Is taken from Its respective re-spective nnlt afld transmitted by means of leaknge ports In the pneumatic system, sys-tem, which In turn control relay valves delivering a suction to the power pueu- , r. , niutlcs. ',:.-' "These relay valves nnd tubes con trolling this supply of power correspond corre-spond to the nerves of the human body. The power pneumutics are directly di-rectly connected to the control surfaces sur-faces of the airplane and the engine vacuum Is sustained by a pump gear driven from the nirplane engine." "There." the statement added, "we have the three functions of the pilot; the gyroscopes functioning as the train, the reluy' valves and tubes as |