Object 277 heavy experimental tank

The Soviet experimental heavy tank “Object 277”

It was developed in 1957. A prototype has been issued. He was not in service. In the battles was not used.

Object 277 heavy experimental tank, Kubinka museum

Object 277 heavy experimental tank, Kubinka museum

Tactical and technical characteristics

Weight – 55 tons
Crew – 4 people
Overall dimensions (length x width x height), mm. 10150 x 3380 x 2500
Armament
gun – 1 piece, caliber – 130 mm., ammunition – 26 shots
machine gun – 1 piece, caliber – 14.5 mm., ammunition – 250 shots
Armor protection, mm: forehead hull .. 120, forehead of the turret .. 290
Engine power, HP 1000
The maximum speed is 55 km / h
Cruising range along the highway, km 190
The depth of water barriers, fordable – 1.2 meters

Design Features

The base is special, separate design decisions of the IS-7 and T-10 tanks were used. The overall layout is classical.
Armament – available: cassette-type charging mechanism semi-automatic with electric drive; stabilizer arms in two planes; automated fire control system; sight-rangefinder; blowing the barrel bore with compressed air.
Protection – the body is welded, side sheets are bent with variable thickness, the front part of the hull and towers are cast, the bottom of the structure is trough-like.
Chassis – engine 12-cylinder, V-shaped, four-stroke diesel water cooling with a drive centrifugal supercharger and ejection cooling system; transmission mechanical planetary (in one block with the engine); suspension torsion beam, beam shock absorbers are installed on the first, second and eighth suspension.