. Bell telephone magazine . Air traffic at and near the airport is controlled by radio telephone from this control tower tween Washington and New planes and Army pilots wereused in this initial undertaking, andflying was done only in the daytimeand in good weather. In 1922 thePost Office Department undertookexperiments in night flying. The air- General was empowered to makecontracts with commercial airplanecompanies for carrying the quickly attracted private capi-tal, and a number of air transportcompanies were organized and start-ed operations within the next two 19
. Bell telephone magazine . Air traffic at and near the airport is controlled by radio telephone from this control tower tween Washington and New planes and Army pilots wereused in this initial undertaking, andflying was done only in the daytimeand in good weather. In 1922 thePost Office Department undertookexperiments in night flying. The air- General was empowered to makecontracts with commercial airplanecompanies for carrying the quickly attracted private capi-tal, and a number of air transportcompanies were organized and start-ed operations within the next two 192 Bell Telephone Magazi)ie AUTUMN. T945 Guardians of the Skyways 193 years. In September, 1927, the Post charged with the responsibility of Office Department turned the air- providing navigational aids and of mail business over to the commercial regulating and controlling civil flying, airlines. This agency took immediate steps to
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Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922
