Obiekt 770

Object 770
Object 770 on display at the Kubinka Tank Museum
Type	Heavy tank
Place of origin	Soviet Union
Production history
Designer	Pavel Isakov
Designed	1956
Produced	1957
No. built	1
Specifications
Mass	55.0 t (121,300 lb)
Length	10.15 m (33 ft 4 in)
Width	3.38 m (11 ft 1 in)
Height	2.42 m (7 ft 11 in)
Crew	4
Armor	Frontal turret: 300mm RHA Upper glacis: 120mm RHA Lower glacis: 187mm RHA Upper sides: 86mm RHA Lower sides: 105mm RHA
Main armament	130mm M-65 (37 rounds)
Secondary armament	14.5mm KPVT machine gun (250 rounds)
Engine	10-cylinder, four-stroke, DST-10 diesel engine with a supercharging compressor 1000 hp
Operational range	200km on highway
Maximum speed	55 km/h (34 mph)

The Object 770 (Объект 770), was a prototype Soviet heavy tank designed in 1956, and was one of the last heavy tanks ever produced.^[1] It was developed alongside the Object 277 and the Object 279 following the Decree of the Council of Ministers of the USSR on August 12, 1955.^[2] Development was cancelled in 1960 following Nikita Khrushchev's orders to stop production of all heavy tanks weighing over 37 tons.^[3][4]