Us Official Photographs

Epstein at controlboard

Cpl. Epstein's shadowgraph. At controlboard, Epstein can make a plane fly from left to right, up and down, recede and approach, singly or all at the same time. When the light-ring is projected where he aimed it on the screen. At same time as gun is locked, plane continues just as far as it would normally go before bullet hits, and then stops dead. This is a hit, at the distance, which is about 400 yards. At much greater distance, it would be a miss, as lead wouldn't be enough. Note that device allows for lead.