The T131 280 MM Heavy Motorized Gun
The T131 heavy motorized gun was the experimental model of the M65 atomic cannon. Adopted in 1956, the cannon could fire both nuclear and conventional shells over a range of 18 miles. Rendered obsolete by the development of more mobile rockets, the atomic cannon was withdrawn from service in the U.S. Army by the mid 1960s. Only 8 cannons remain today. The cannon weighs about 47 tons and is mobile. The prime mover consists of both a front and rear truck that can reach a maximum speed of 30 mph.
Quick Facts & Specifications (M65)
|Dimensions:||84.0' L, 16.1' W, 12.1' H (Towed)|
|Firing Range:||~7-20 miles|
|Yield:||15-20 kilotons (Adjustable)|
|Variants:||3 (1 Production, 1 Derivative, 1 Prototype)1|
|Service History:||Prototype, 1946
Production Starts, 1952
Atomic Testing, 1953
Production Ends, 1957
Area of Operations
1 Of the three variants, only one was the production 280 mm. One was the predecessor T1 testbed, while the other was the 175 mm successor.
* The gun is listed as a prototype, however this is loosely the case. The T1 was the testbed that was used later in 1949 for what became the M65. It was not part of the same program originally.