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1931 - invented by Major J.C. Savage, pioneer sky writer - airplanes caught within the grid of light can easily be followed with the beam and their height, speed and direction determined

LIGHT SNARE FOR AIRPLANES

E&MP122.015

Searchlights

[see NFP] December 30, 1931

LONDON, Jan. 00 (SS), - A cage of light with which to ensnare airplanes at night; that is what a new form of searchlight invented by Major J.C. Savage, pioneer sky writer, might be called. Its light is broken up by a screen which throws a checkerboard design against the sky. Airplanes caught within the grid of light can easily be followed with the beam and their height, speed and direction determined. It is said.



Original Caption by Science Service
Surrey Group, Anti-Aircraft Searchlight Companies

 



National Museum of American History

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