United States naval proving grounds in Dahlgren, Virginia. A ship with snow on its deck underway at sea. A man works on controls at the naval proving grounds in Dahlgren, Virginia as he tries to maintain temperature and altitude. Men in the cool chamber as they work on a machine gun.
United States naval proving grounds in Dahlgren, Virginia. Armor and Projectile laboratory building at the naval proving grounds. A sign on the building reads 'Armor and Projectile Laboratory' Men at the laboratory work on instruments and machines to determine the hardness pattern of projectiles, to fabricate small number of projectiles and develop new inert loading for rocket heads.
United States naval proving grounds in Dahlgren, Virginia. 8 inch smooth bore gun being fired at the proving grounds as smoke rises. Gun being fired at target boards. 8 inch smooth bore being fired to ensure accuracy and to save time.
United States naval proving grounds in Dahlgren, Virginia. A 110 feet rocket launcher at naval proving grounds. Men carry a rocket and place it on the launcher. Rocket being fired. Length of the launcher ensures accuracy. Rocket being fired and smoke rises.
A training film about the activities being carried out at United States naval proving grounds in Dahlgren, Virginia. Aviation ordinance being evaluated at the proving grounds. U.S. Navy aircraft parked on a field as 50 Caliber gun being fired to detect for possible jamming.
Mortar carrier T-21 circles the field at Aberdeen proving ground. It moves over rough and level terrain. Soldiers open rear door revealing mortar. Soldier climbs into the carrier and inspects grenades and other equipment. (Note: The 4.2" M2 heavy mortar recoil was hard on the halftrack chassis so the T-21 was cancelled and never adopted.) (World War II period).
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