SU-85

SU-85
SU-85 tank destroyer in Polish Army Museum.
Type	Self-propelled anti-tank gun
Place of origin	Soviet Union
Service history
In service	1943-1950s (USSR)
Wars	World War II
Production history
Designer	Lew S. Trojanow
Designed	1943
Produced	1943-1944
No. built	2,650
Variants	See Variants section
Specifications
Mass	29.6 tonnes (65,256 lbs)
Length	8.15 m (26 ft 9 in) overall 6.10 m (20 ft) hull only
Width	3.00 m (9 ft 10 in)
Height	2.45 m (8 ft)
Crew	4 (commander, driver, gunner, loader)
Armor	45 mm(1.77 in)[clarification needed]
Main armament	85 mm (3.34 in) D-5T gun
Secondary armament	none
Engine	Kharkiv model V-2 V-12 diesel engine 493 hp (500 PS, 368 kW)
Power/weight	16.7 hp/tonne (12.43 kW/tonne)
Suspension	Christie
Ground clearance	0.40 m
Fuel capacity	460 L 810 L - 900 L (with additional fuel tanks)
Operational range	Road: 280 km (170 mi) 400 km (250 mi) (with additional fuel tanks) Cross-country: 140 km (87 mi) 200 km (120 mi) (with additional fuel tanks) [1]
Maximum speed	55 km/h (34 mph) (road)

The SU-85 (Samokhodnaya ustanovka 85) was a Soviet self-propelled gun used during World War II, based on the chassis of the T-34 medium tank. Earlier Soviet self-propelled guns were meant to serve as either assault guns, such as the SU-122, or as tank destroyers; the SU-85 fell into the latter category. As with the other AFVs in the SU series, the designation "85" refers to the vehicle's main armament, the 85 mm D-5T gun.