Type 59 - Description

Description

Essentially the Type 59 is identical to the early production Soviet T-54As, however there are some key differences. The Type 59 was not originally fitted with the infrared searchlight or main gun stabilization of the T-54.

The Type 59 has a conventional post-war layout with the fighting compartment at the front, an engine compartment at the rear, and a cast dome-shaped gun turret in the centre of the hull. The hull is welded steel varying in thickness between 99 mm on the front lower glacis to 20 mm on the hull floor. The turret varies from 39–100 mm thick.

The driver sits in the front left of the hull, and is provided with hatch immediately above his seat, which opens to the left. The driver has two pop-up vision blocks which give coverage ahead and slightly to the right when buttoned up. The commander sits in the turret along with the gunner and loader. The commander's hatch is on the turret left, with the gunner sitting forward and below him. The loader sits on the right of the turret and has a hatch above him. The turret has a non-rotating floor, which complicated the crew's operations.

The turret mounts a rifled 100 mm Type 59 cannon, for which 34 rounds are typically carried. A Type 59T 7.62 mm machine gun is mounted coaxially with the main gun. A Type 54 12.7 mm anti-aircraft machine gun (a Chinese copy of the Russian 12.7 mm M1938/46 DShKM) is provided above the gunner's hatch for which 200 rounds is carried. Additionally a Type 59T 7.62 mm bow machine gun is provided for the driver, which fires through a very small hole in the center of the glacis. 3,500 rounds of 7.62 mm ammunition are normally carried.

The turret has a powered traverse mechanism that is probably comparable to the T-54 traverse mechanism which can rotate the turret through 360 degrees in 21 seconds. Very early models of the Type 59 gun had manual elevation gear, later replaced with a powered system which allowed the gun to be aimed at between +17 and -4 degrees (the average depression for Western tanks is -10, which allows for better usage of hull-down tactics). Later models added vertical stabilization to make firing on the move practical. An infrared searchlight based night vision system was retrofitted to the tank with infrared periscope for the commander gunner and driver.

The tank is powered by a Model 12150L V-12 liquid cooled diesel engine, which develops 520 horsepower at 2,000 rpm. The engine feeds a manual gearbox with five forward and one reverse gear. A total of 815 litres of diesel can be carried internally in the tank, with a further 400 litres carried externally giving a maximum road range of 600 kilometers, or approximately 430 km using only internal fuel. The tank has five road wheels on each side with a prominent gap between the first and second road wheel. The track is driven by a drive sprocket at the rear, with an idler at the front. It is notable that there are no return rollers. The suspension is a torsion bar system. Engine exhaust is on the left fender.

Ammunition is stored inside the turret, which increases the odds of a catastrophic secondary explosion should the tank's interior be penetrated by enemy fire. Crew survivability is hence low. (Gelbart 1996:16)