. Official proceedings . airways; operate andmaintain beacons, signals, emergency landing fields, radio direc-tion finding facilities, and will encourage such developments asmay aid navigation. Our airways now exceed 25,000 miles, of which approxi-mately one-half are equipped for night flying operations. Inaddition to equipping the airways with navigational aids, theAeronautics Branch of the U. S. Department of Commercesupervises the examination and licensing of pilots and 9,400 pilots are now licensed by the Govern-ment and over 6,400 planes are in commercial use. Incid
. Official proceedings . airways; operate andmaintain beacons, signals, emergency landing fields, radio direc-tion finding facilities, and will encourage such developments asmay aid navigation. Our airways now exceed 25,000 miles, of which approxi-mately one-half are equipped for night flying operations. Inaddition to equipping the airways with navigational aids, theAeronautics Branch of the U. S. Department of Commercesupervises the examination and licensing of pilots and 9,400 pilots are now licensed by the Govern-ment and over 6,400 planes are in commercial use. Incidentally, the manufacturing capacity in this country hasrisen to 7,500 planes per annum for 1929 as compared to about4,500 planes for 1928. The Aeronautics Branch also includesan information division which collects and disseminates informa-tion relative to the industry; an aeronautic research divisionwhose object is the development and improvement of aids toair navigation and the promotion of safety and comfort in flight;. Airway map showing routes which carry passengers, express ormail and the portion equipped with navigational facilities fornight flying. 43 an airport section which directs and coordinates the work ofdepartment rehited to assisting in the selection of and fosteringthe development of airports; also, the promulgation of airportrating regulations and the rating of airports; an airways map-ping section whose important activity is the preparation of mapsand charts for air navigation ; special research committees whofunction under the chairmanship of the director of aeronauticaldevelopment. Committees at the present time are investigatingsuch problems as: (1) automatic sprinklers for hangar protec-tion; (2) standard signal systems for airways; (3) aeronauticradio research. One of the most important navigational aids for night fly-ing through thick weather, the development of which was super-vised by the Bureau of Standards, is the radio beacon. Thesebeacons guide fly
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