Safety device,blind landing of air-track,monitoring,communication,speaking,1937

Title: 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 and the pilot can be notified to come into the airdrome again while corrections can be made
Creator(s): Harris & Ewing, photographer
Date Created/Published: [19]37 February 4.
Notes:
Title from unverified data on the negative or negative sleeve.
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 four.
Subjects:
United States--District of Columbia--Washington (D.C.)
Bookmark /hec2009008814/
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