Members of Civil Aeronautics Authority inspect latest aid to airplane pilots. Washington, D.C., Oct. 10. An instrument which gives airplane pilots their height above the ground over which the plane is flying was demonstrated today to members of the Civil Aeronautics Authority by officials of the Western Electric Co. and the United Airlines. Claimed to be the first successful altimeter showing terrain clearance, the new device operates by radio, using the shortest wave ever employed for aviation, officials of the companies stated. In the photograph, left to right: Col. Sumter Smith, Peter C. Sandrette, Supt. of the United Airline's communication laboratory who was in charge of the demonstration; and Thomas Hardin. Smith and Hardin are members of the Civil Aeronautics Authority, 101038
Summary
A black and white photo of three men in suits, Library of Congress Harris and Ewing collection
Title from unverified caption data received with the Harris & Ewing Collection.
Gift; Harris & Ewing, Inc. 1955.
General information about the Harris & Ewing Collection is available at http://hdl.loc.gov/loc.pnp/pp.hec
Temp. note: Batch five.
The Harris & Ewing, Inc. Collection of photographic negatives includes glass and film negatives taken by Harris & Ewing, Inc., which provide excellent coverage of Washington people, events, and architecture, during the period 1905-1945. Harris & Ewing, Inc., gave its collection of negatives to the Library in 1955. The Library retained about 50,000 news photographs and 20,000 studio portraits of notable people. Approximately 28,000 negatives have been processed and are available online. (About 42,000 negatives still need to be indexed.)