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AT 25,000 FEET, A CANDID SHOT. View inside 

 one of the C-54 planes converted for use as an 

 Army Air Forces photographic ship. At the left 

 can be seen the equipment used to record time 

 of operation of each one of the plane's 28 still 

 and motion picture cameras. Each tiny light in 

 the circular panel array represented a particular 

 camera installed somewhere in the plane. Each 



time that camera's shutter clicked the light on the 

 recording panel flashed on and was recorded by 

 means of a motion picture camera shown just in 

 front of the panel itself. The clock at the center 

 of the circle of indicator lamps was photographed 

 at the same time, completing the accurate record 

 made. Special wiring and power supplies were ne- 

 cessary to make possible the indicator system. 



