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Aviation History
1929
1929 - 1169.PDF
FLIGHT, JON* S, 1928., i :i.l J"t HOW WIRELESS HELPS AMERICAN AIR MAIL SERVICES ONE of the first practical applications of radio as a meansof solving the problem of aviation's greatest foe—bad weather—has been made by National Air Trans- port, Inc., operator of the Chicago-Cleveland-New York andChicago-Kansas City-Dallas air mail and express lines. 'Planes of this company flying the mail on the Cleveland-New York Division are already equipped with directional and ground to 'plane receiving sets, and all other ships ofthe company's extensive fleet are having the new equipment installed at the Chicago Divisional Repair Shops as rapidly as possible. One of these machines, a Douglas DAM-4 type"mail 'plane so equipped is shown in the illustration at the top of this page. The installation of the radio equipment is the culminationof a year and a-half of intensive tests carried on by radio engineers of the air transport company and of the Depart-ment of Commerce, which has resulted in the twin sciences of radio and aviation being definitely linked for the advance-ment of air transportation. The radio beacons at Cleveland, Bellefonte, Pa., and Hadley Field, N.J., have been erected US. AIR MAILS AND WIRELESS : (1) The interior of the radio airway broadcasting station of N.A.T. air services. Here weather reports and other information are received over the teletype and broadcast to thePilots In flight. (2) Radio equipment for mail and express plane, showing pilot s helmet and earphones, the switchboard, the receiving set and battery. (3) The set is installed in the fuselage aft of the pilot's cockpit, fromwhere it is operated by remote control shown in (4), the switchboard being located on the left. -"""-• :. ••.'" • 459 . -'...- ,-...;.,.; . \.w i / •- • .,..•-.
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