Portable trailer in use in blind landings. Washington D.C. This portable trailer where all the equipment is enclosed can be easily transported to any position on the Airdrome so that the pilot can approach the field into the wind for his landing. All the beam control is dispatched from this trailer

Safety device for blind landing of air-track. Washington D.C. The monitoring device of the air-track blind landing in the above photo tells the man on the ground if all the beams are being sent out correctly if there is any error in transmission of the beams this machine will pick It up immediately

Government plane completely equipped for testing radio and lighting. Captain F.C. Hingsburg, Chief of the Airways Division of the United States Department of Commerce, and a Government airplane that has been completely oufitted as a flying laboratory for testing radio and lighting systems along the

The first radio beacon is inaugerated. An executive photograph showing Dr. George K. Burgess, Director fo the United States Bureau of Standards, and the aircraft radio beacon at College Park, Maryland, designed for guiding airplanes by radio. This is the first radio beacon for use of civil aviation

Blind landing now possible. Washington D.C. It is now possible to make blind landings which has been one of the biggest difficulties to aviation. It is this single instrument located above the panel in the center directs him to the ground in a curved track and also in a straight line so as to hit th

New wireless teletypewriter. Washington, D.C., Oct. 15. A new radio teletypewriter service permitting instantaneous transmission of written records without the aid of wires, has been perfected by the experts of the Bureau of Air Commerce, Department of Commerce. Commerce officials said a chain of te

U.S. experts test weather device. Washington, D.C., Sept. 13. Scientists of the National Bureau of Standards today conducted a test of the new radiometeorograph, a device attached to parachute and balloon and sent into the skies to radio back signals giving the pressure, temperature and humidity of

Weather signals recorded. add weather device. Washington, D.C., Sept. 13. By means of this chronograph, Dr. L.V. Astin records the weather signals sent down from the radiometeorograph attached to the balloon as it soars anywhere from 9 to 11 miles in the upper air. 9/13/37

Arlington, Virginia. FSA (Farm Security Administration) trailer camp project for Negroes. Single type trailer