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Soviet Union's KV-85 heavy tank

Design

The KV-85 was designed by a design bureau led by Lieutenant-Colonel Kotin. He split the bureau into two and each team had different specifications to design for. One of the teams was told to improve the KV series as a stopgap for a new heavy tank. This design was to become the KV-85.

The KV-85 was based on the KV-1-S's hull. The armor was increased to 4.3" / 110 mm.

Some KV-1Cs / KV-1s were upgraded in the winter of 1943-44.

With delays in the IS-85 and the front lines wanting new heavier tanks, an initial 148 KV-85s were manufactured in the autumn of 1943. At the start of 1944 all production ceased in favor of the IS series.

Main Armament

The KV-85 had the same 85 mm D-5T gun installed that was to be installed in the IS-85. The hull had to be made wider and the 5th crewman was removed to make room for more ammunition.

Production

  • KV-85: 102, 130, 148
    • Production: 1943

Usage

It started appearing at the front in the summer of 1943 and was available in large numbers at Kursk in July 1943.
Another source says they didn't first appear until December 1943 against Army Group North. The 27th Guard Regiment had 20 tanks in 4 companies and were decimated by the German defenses.

Specifications

  KV-85
Crew Commander, driver, mechanic, gunner
4, 5
Physical Characteristics  
Weight 101,413 lb,
43 tons, 46 tons, 50.7 tons, 45.3 tons
46,000 kg
Length w/gun 21' 11", 22' 6", 27.85', 27' 10", 28' 3"
6.68 m, 8.6 m, 8.49 m
Length w/o gun 8.6 m
Height 8' 10.7", 9' 2", 9' 3", 9' 6"
2.71 m, 2.9 m, 2.8 m
Width 10.66', 10' 8", 10' 10.7", 11' 5.75"
3.25 m, 3.32 m
Ground clearance 0.4 m
Ground contact length 14.4'
Ground pressure 0.77 kp/cm
Turret ring diameter 11' 4"
Armament  
Main 85 mm M1943 D-5 T 85 L/51.5
85 mm 1943 D-5T
85 mm
85 mm D-5T
85 mm M1943 L/51.5
Secondary  
MG 2: 7.62 mm DT MG
3: 7.62 mm DT MG
3: MG
MG - coaxial 1: 7.62 mm MG
MG - rear 1: 7.62 mm MG
MG - hull 1: 7.62 mm MG
Side arms  
Quantity  
Main 70, 71
Secondary  
MG 3,276
Side arms  
Armor Thickness (mm) 30 - 110
Hull Front, Upper 60 - 75, 60 - 76
Hull Front, Lower  
Hull Sides, Upper 60, 60 - 65
Hull Sides, Lower  
Hull Rear 40-75
Hull Top 30, 30 - 40
Hull Bottom 30, 30 - 40
Turret Front 30 - 110, 100 - 110
Turret Sides 100 - 110
Turret Rear 110
Turret Top 30
Engine (Make / Model) V-2K, V-2K-s, W-2-K
Bore / stroke 4 stroke
Cylinders 12, V-12
Net HP 600, 600@2,000 rpm
Transmission  
Fuel type Diesel
Octane  
Quantity 615 liters
Performance  
Traverse 360°
Speed - Road 21.75 mph, 21.8 mph, 22 mph, 25 mph,
40 kph, 42 kph, 35 kph
Speed - Cross Country 12.4 mph
Range - Road 93.2 miles, 100 miles, 140 miles, 155 miles, 156 miles
150 km, 160 km, 250 km, 330 km
Range - Cross Country 93 miles
Turning Radius  
Elevation Limits  
Fording depth 1.2 m
Trench crossing 8' 6"
2.59 m, 2.7 m
Vertical Obstacle 3' 8", 3' 11.25"
1.2 m, 0.9-1.2 m
Climbing ability 40°
Suspension (Type)  
Wheels each side  
Return rollers each side  
Track length  
Tires  
Track width 2' 4"
Track centers/tread  

Sources:

  1. Russian Tanks of World War II Stalin's Armored Might, by Tim Bean & Will Fowler, 2002
  2. Russian Tanks and Armored Vehicles 1917-1945, by Wolfgang Fleischer, 1999
  3. The Encyclopedia of Tanks and Armored Fighting Vehicles - The Comprehensive Guide to Over 900 Armored Fighting Vehicles From 1915 to the Present Day, General Editor: Christopher F. Foss, 2002
  4. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  5. The Encyclopedia of Weapons of World War II, Chris Bishop, 1998
  6. Airfix Magazine Guide 22 Russian Tanks of World War 2, John Milsom and Steve Zaloga, 1977
  7. Tanks of World War II, Duncan Crow, 1979
20th Century American Military History Crucial Site