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Soviet Union's KV-1 Model 1941 heavy tank,
KV-1B heavy tank:

KV-1 Model 1941 in the winter of 1942 to 1943.
Russia's KV-1B Heavy Tank
KV-1 Model 1941, Moskovskii Osaviakhimovyets (Moscow branch of the League of Air and Chemical Defense) purchased the tanks.
Russia's KV-1B Heavy Tank
   

Design

Had extra 25-35 mm of armor that was screwed onto the turret and welded to bow and driver's area. Starting in 1942 these had a cast turret. Hull MG was added.

Extra Armor

Some of the KV-1s had extra armor added.12 Some had apliqué armor added, while others had screens attached by bolts.12

The foundries at Kuznets Basin produced a cast turret.12 This turret weight over seven tons.12

Production

Produced in 1941.

Variants

  KV-1 19412 KV-1B
Crew 52 512
Physical Characteristics    
Weight 103,617 lb
47.5 tons2
47.5 tons12
Length w/gun 22' 8",
6.25 m2
22.3'12
Length w/o gun 22' 2"  
Height 9' 7", 2.75 m2 10.65'12
Width 10' 11", 3.25 m2 10.93'12
Width over tracks    
Ground clearance 0.45 m2  
Ground contact length   13.8'12
Ground pressure 0.78 kg/cm2 2  
Turret ring diameter    
Armament    
Main 76.2 mm ZiS-5 L/42
76.2 mm 1940 F-342,7
76.2 mm M1938/3912
76.2 mm ZiS-5 L/41.612
Secondary    
MG 3-4: 7.62 mm DT MG2 3: MG12
Side arms    
Quantity    
Main 111-1142, 135 (BR-350A, OF-350, Sh-350A) 11112
Secondary    
MG 3,0242 3,02412
Side arms    
Armor Thickness (mm)    
Hull Front, Upper 75+26, 1102 75+35, 11012
Hull Front, Lower 75+31  
Hull Sides, Upper 75-1102 75 - 11012
Hull Sides, Lower 90  
Hull Rear 32, 752  
Hull Top 30-402 3512
Hull Bottom 30-402 3512
Turret Front 100, 1102 35 - 10012
Turret Sides 95, 1102  
Turret Rear 1102  
Turret Top 30, 352  
Engine (Make / Model) V2K3, W-2-K2 V-2K12
Bore / stroke 4 stroke2  
Cooling    
Cylinders V-122 1212
Capacity    
Net HP 600@2,000 rpm2 55012
Power to weight ratio 12.6 hp/ton2  
Compression ratio    
Transmission (Type)    
Steering    
Steering ratio    
Starter    
Electrical system    
Ignition    
Fuel (Type) Diesel2 Diesel12
Octane    
Quantity 600-615 liters2  
Road consumption    
Cross country consumption    
Performance    
Traverse 360° 360°
Max speed 21 mph
29 kph2
22 mph12
Cross country speed 10 mph  
Road radius 155 miles, 250 km2 140 miles12
Cross country radius   94 miles12
Turning radius    
Elevation limits    
Fording depth 5.2'
1.45-1.6 m2
 
Trench crossing 2.8 m2  
Vertical obstacle 0.9-1.2 m2  
Climbing ability 36°2  
Suspension (Type)    
Wheels each side    
Return rollers each side    
Tracks (Type)    
Length    
Width   2' 3.5"12
Diameter    
Number of links    
Pitch    
Tire tread    
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. Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1933-1942, Thomas L. Jentz, 1996
  5. Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1943-1945, Thomas L. Jentz, 1996
  6. Tanks of the World, 1915-1945, Peter Chamberlain, Chris Ellis, 1972
  7. Jane's World War II Tanks and Fighting Vehicles The Complete Guide, Leland Ness, 2002
  8. Tanks of World War II, Duncan Crow, 1979
  9. Battle Winning Tanks, Aircraft & Warships of World War II, David Miller, 2000
  10. Tank Data, Aberdeen Proving Grounds Series, 1968?
  11. The Illustrated Guide to Tanks of the World, George Forty, 2006
  12. Airfix Magazine Guide 22 Russian Tanks of World War 2, John Milsom and Steve Zaloga, 1977
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