Dome Training Apparatus No. 4, Mark I, for antiaircraft gunnery practice under simulated battle conditions weighs 7000 lb and can be transported from unit to unit on 3-ton truck; it can be set up for training within 2 hr; it consists of inflated rubberproofed cotton envelope forming part of sphere and having circular floor, laced on to base ring composed of 16 concrete segments bolted together.
"Portobel" Anti-Aircraft Trainer
Engineering
Engineering ; 169 , n 4399
1950
2 pages
Article (Journal)
English
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