1957 -USA M103 Heavy Tank

Armament:          1 - 120mm gun M58
                               1 - 0.3" coaxial MG
                               1 - 0.5" MG AA
Engine;                Continental, AV1790, 12cyl.
                                air cooled, petrol, 810 hp
Speed;                 21 mph
Range:                 80 miles
Crew:                    5
Weight:                 62 tons

Designed for direct assault and support for medium tanks 
against Soviet armor. Had deficiencies in gun control.  Huge
size , weight, short range and poor reliability were problems. Phased out of service in the 1960s. Large turret has room for  4 men. Derived from T43. Entered service with U.S. Army. Never saw combat. Only 200 built. Underpowered.  M103A1 was used by the USMC.