The first atomic cannon went into service in 1952, and was deactivated in 1963. Throughout the 1950s, the Army deployed nuclear cannons to Europe even though they were obsolete as soon as they arrived. Guarded by infantry platoons, these guns were hauled around the forests on trucks to keep the Soviets from guessing their location. Weighing 83 tons, the cannon could not be airlifted and took two tractors to move its road-bound bulk. It was a glamorous weapon to be sure, but it did not fit into the Pentomic structure of the Army, and it siphoned off precious funding that the Army desperately needed for modernization.
In June 1995, a veteran testified at a personal hearing on service connection for hearing loss that he worked for three months on a nuclear or atomic cannon when he was in the service and they fired the cannon for three months, every working day and approximately three to four hours a day at five minute intervals. The veteran indicated that he was never given ear protection during service. He stated that he received medical treatment during service and was told that his hearing loss and tinnitus “would resolve themselves.” The veteran further stated that he has had a “tremendous ringing in both of [his] ears” that “impairs [his] hearing” since service
Twenty were manufactured; eight appear to have survived the Cold War and are on public display today.
Army Ordnance Museum, Aberdeen, Maryland (still has the two large “prime movers” attached)
Atomic Museum, Albuquerque, New Mexico
Fort Sill Museum, Oklahoma
Freedom Park, Junction City, Kansas
Rock Island Arsenal, Memorial Field, Rock Island, Illinois
Virginia War Memorial Museum, Newport News, Virginia
Watervliet Arsenal, Watervliet, NY – where they were all manufactured.
Yuma Proving Ground, Yuma, Arizona
Weighing 85 tons, it required two tractors to move it and was so unwieldy that it could take an hour of careful maneuvering to get it under a bridge. Its instability and propensity to slide or tip when maneuvered on anything but firm and level ground earned it the nickname the “Widow Maker." To complicate the Army’s problems further, the gun was very unpopular among Europeans. Within 2 years it had been surpassed by other weapons, and was taken out of service within a decade.
There are arguments over the value of the atomic cannon, especially in regard to range, but General Collins believed the threat of its deployment had a role in bringing about the Korean armistice and did not doubt the presence in Europe “of our nuclear guns has contributed greatly as a deterrent to any offensive by the Soviets.”