Stabilized Guns for Yanks' Tanks

Ohio State Engineer, vol. 28, no. 4 (March, 1945), 10.A short time before we entered the war, the Ordnance Department requested research engineers to develop a method for stabilizing the guns in tanks so that they could fire while moving over moderately rough terrain without losing their accuracy. Of course, the rolling and pitching of the tank was the reason why experienced gunners could average only about one percent hits while moving. The small arms in the tank were not so much affected or so important, but the weight and power of the cannon made it imperative for it to be able to fire accurately while moving. This fact alone gave our forces a great offensive advantage.