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Tanks of World War II

SU-85

GENERAL DATA
Formal Desig­nation SU-85
Manufac­turer(s) Factory No.9 Ural Heavy Machinery Factory (UTZM or Uralmash)
Production Quantity 2050 Production Period Aug. 1943 - Jul. 1944
Type Tank Destroyer Crew 4
Length overall 8.15 m (26' 9") Barrel Overhang 2.23 m (7' 4")
Width 3.00 m (9' 10") Height 2.45 m (8' 0")
Combat Weight 29600 kg (65000 lbs) Radio Equipment 9R
FIREPOWER
Primary Armament 85mm Gun D-5S Ammu­nition Carried 48
Traverse (degrees) Manual (10°L - 10°R) Elevation (degrees) -3° to +20°
Traverse speed (360°) - Sight TSh-15
Secondary Armament - Ammu­nition Carried -
MOBILITY CHARACTERISTICS
Engine Make & Model V-2-34 Track Links 72/track
Type & Displace­ment V12, 38.9 liters Track Width 55.0 cm (22")
Horse­power (max.) 500hp @1800rpm Track Ground Contact 372 cm (146")
Power­/Weight Ratio 16.9 hp/t Ground Pressure 0.72 kg/cm2 (10.3 psi)
Gearbox 5 forward, 1 reverse Ground Clearance 0.40 m (1' 4")
Fuel Diesel Turning Radius 7.6 m (24' 11")
Range on/off road 280+/175+ km Gradient 35°
Mileage on road 150 l/100km Vertical Obstacle 0.8 m (2' 7")
Fuel Capacity 420 (+ 270 external)1 L Fording 1.3 m (4' 3")
Speed on road 55 km/h Trench Crossing 2.5 m (8' 2")
ARMOR PROTECTION
Armor Detail Front Side Rear Top­/Bottom
Hull 45mm @30° 45mm @90° 45mm @45° 20mm @0°
Super­structure 45mm @40° 45mm @70°(front) 45mm @42° 20mm @0°
45mm @50°(rear) 45mm @70°(crew)
Mantlet 75mm @round - - -
TECHNICAL DRAWINGS AND OTHER IMAGES
Profile Drawing Available SU-85 by A.J.D. North
NOTES
1In general, one of the four 90 liters external fuel tanks was reserved for oil.
REFERENCES
TD1, TWWII, T34IA, BP07, ST, RTAV, Russian Military Zone

Copyright © 2018 Ralph Zuljan