KV-1 Heavy Tank

Soviet KV-1 Heavy Tank

Russia's KV-1 Heavy Tank
Aberdeen Tank Museum

1/72 Diecast Models of KV-1
Hobby Master:
3001:
Russia's Hobby Master 3001 KV-1
3003:
Hobby Master HG3003 1/72 Diecast Armor, Soviet KV-1
3005:
Hobby Master 1/72 Armor, USSR KV-1 Heavy Tank

In 1938 the SMK (Sergius Mironovitch Kirov) and the T-100 were designed by S.J. (Z.?) Kotin / I.S. Kotin8 (chief engineer of the Kirov-Zavod tank factory in Leningrad) to replace the T-35. The prototypes were tested in the Russo-Finnish War and were found to be too large and too complex. At Stalin's suggestion Kotin modified the T-100 by removing the small front turret which had a 45 mm gun and was able to design a more compact vehicle and increase the armor based on the weight savings.

The design work started in February 1939 at the Kirov Factory in Leningrad.9 A wooden mockup was ready in April 1939.9 By September 1939 the first prototype was show to the General Staff.9 It was accepted in December 1939, with production starting in February 1940.9

This vehicle was originally called the Kotin-Stalin but was officially changed to the Klimenti Voroshilov9 / Klementi Vorishilov / Marshal Klimenti Voroshilov8,11 (KV) after the Defense Commissar.

The first prototype first appeared in September 1939 and it was accepted on December 15, 1939, for introduction to the Red Army. In the summer of 1940 production started.

They came from the production lines in Leningrad and went straight to the front at Karelian. The factory was later moved to Chelyabinsk.

The engine was the same as the T-34 but with minor modifications. Initially the armor was welded.9

The driver sat in the middle.8,9 The radio operator / machine gunner sat on the left.8,9

Drive sprocket was at the rear.8

Image: KV-1 (49K)

KV-1:

The first models were prone to clutch and transmission faults.

In Feb. 1940 a platoon of KV-1s were sent to Finland11 for trials. Despite hits from Finnish antitank weapons none were knocked out.

By June 1941 there were 636 produced. By the Battle for Moscow (December 1941) 1,364.

KV-8:

Soviet KV-8 Heavy Tank, Flame thrower

Had 45 mm M32 gun installed in place of main gun and an ATO-41 flame-thrower installed coaxially.7 It had 670 liters of oil and game 52-55 bursts of flames. It's range was about 46 meters. Used KV-1C chassis. Had 116 round of 45 mm, 2,772 rounds of MG, and weighed around 44 tons.

  KV-1
Crew Commander, gunner, auxiliary driver, driver/mechanic, radio-operator
Commander/loader, gunner, 2nd driver/mechanic, driver/mechanic, hull gunner/radio operator8
51,6,8,9,11
Physical Characteristics  
Weight 102,200, 104,719 lb, 104,791 lb9
42,910 kg1, 43,000 kg11, 47,500 kg9
42.23 tons1, 42.3 tons11, 43.5 tons8, 46.35 tons6, 47.5 tons7
Length w/gun 20.6'9, 21' 11"11, 22.6'6, 24' 3"1
6.3 m9, 6.68 m11, 6.9 m7, 7.41 m1
Length w/o gun 22' 1"
Height 7.9'9, 7' 11", 8.75'6, 8' 10", 8' 11"11, 9' 5"1
2.4 m9, 2.71 m7,11, 2.87 m1
Width 10.2'9, 10' 2", 10.65'6, 10' 10", 10' 11"11, 11' 5"1,
3.1 m9, 3.32 m7,11, 3.49 m1
Width over tracks  
Ground clearance 1' 2.5"
Ground contact length  
Ground pressure 10.68 psi, 10.7 psi9, 11.23 psi
0.7 (kg/cm2)9
Turret ring diameter  
Armament  
Main

76.2 mm M1938/39 L/30.5
76.2 mm L/30.58
76.2 mm1,2
76.2 mm F-349
76.2 mm L/41 ZiS-511

Secondary  
MG 3: 7.62 mm MG1
3: 7.62 mm DT MG, coaxial, hull, rear (some models)9
3: MG6
3: MGs, coaxials, hull, rear8
up to 4: 7.62 mm MG11
Side arms  
Quantity  
Main 1119, 114
Secondary  
MG 3,0009
Side arms  
Armor Thickness (mm) 7511
30 - 706, 75+256, 75 - 1009, 90-1108
Front: 757
Side: 757
Hull Front, Upper 759, later models: 75+359
Hull Front, Lower  
Hull Sides, Upper 90+40, 90-130
Hull Sides, Lower 90
Hull Rear 75, 60-75
Hull Top 35, 30
Hull Bottom 30
Turret Front 120
Turret Sides 120
Turret Rear 90
Turret Top 40
Engine (Make / Model) W-2-K2
1942: V2K3
V-28, V-2-K IS9
V2K11
Bore / stroke  
Cooling Water9
Cylinders V-1211, 129
Capacity  
Net HP 5506,11, 6007,8
600@2,000 rpm9
Power to weight ratio 12.6 hp/ton9
Compression ratio  
Transmission (Type) 5 forward, 1 reverse
Steering  
Steering ratio  
Starter  
Electrical system  
Ignition  
Fuel (Type) Diesel6,9,11
Octane  
Quantity 158.5 gallons
Road consumption  
Cross country consumption  
Performance  
Traverse 360°
Max speed 21.7 mph11, 21.8 mph1, 22 mph6,8,
35 kph1,7,11
Cross country speed 12.4 mph
Road radius 93 miles11, 140 miles1, 156 miles, 210 miles8
150 km11, 225 km1
Cross country radius  
Turning radius 31'
Elevation lLimits -4 to +24.5
Fording depth 4' 8"
Trench crossing 8' 6"
Vertical obstacle 3' 8"
Climbing ability  
Suspension (Type) Torsion bar
Wheels each side 6 twin steel8
Return rollers each side 38
Tracks (Type)  
Length  
Width 27.5"8
Diameter  
Number of links  
Pitch  
Tire tread  
Track centers/tread  
Production 2/1940-:9
1939-: 3,000
1940: 1412, 243
1941: 1,1211,2
1942: 1,7531,2

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
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