Study of modern air reconnaissance and importance of serial photography in present war; anti-aircraft gunfire has forced photographic reconnaissance up to 20,000-ft level causing problems in equipment and methods, problems of automatic shutters being closed prematurely at night by searchlights and tracer ammunition explained.
Photographic reconnaissance
Flight
Flight ; 38 , n 1670
1940
Article (Journal)
English
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Engineering Index Backfile | 1943
Engineering Index Backfile | 1943
Photographic method for investigating short period rolls of photographic reconnaissance aircraft
Engineering Index Backfile | 1943
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