Show map aids aid flyers flyer uncle sams weather bureau and the department of 0 commerce have developed a L master weather map to add ad to the safety of flying our airways E every very four hours this master map transmits simultaneously to ac scores ores of airports throughout the country by means of a telegraphic typewriter system the latest weather conditions not only along the regular air routes but to lo either side of these routes so that it if a pilot isi 14 forced oft off the regular route he knows WS w what hat kind of weather to expect expect t until he can regain or revamp his course with the aid of 0 the prepared map pathfinder magazine |