Keywords: Lot-9435-6: Correcting Aim of America’s Big Guns. Shown is a deflection board that American Coast Defense officers use to correct the aim of the large 16-inch railroad guns against drift and winds. Each gun regiment has a weather observing detail that uses balloons to measure winds. This operation is in the plotting car, removed the gun. The information is phoned direct to the gunners. The complete operation assures perfect coordination in protecting the vast United States coastlines. Office of War Information Collection, Dec 1941-Jan 1942. (2015/12/11). Lot-9435-6: Correcting Aim of America’s Big Guns. Shown is a deflection board that American Coast Defense officers use to correct the aim of the large 16-inch railroad guns against drift and winds. Each gun regiment has a weather observing detail that uses balloons to measure winds. This operation is in the plotting car, removed the gun. The information is phoned direct to the gunners. The complete operation assures perfect coordination in protecting the vast United States coastlines. Office of War Information Collection, Dec 1941-Jan 1942. (2015/12/11). |