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Great Britain's Infantry Mk IV, A22, Churchill VII

Photos

Infantry Mk IV, Churchill Mk VII, A22:
Great Britain's Infantry Mk IV, A22, Churchill Mk VII
©IWM

Infantry Mk IV, Churchill Mk VII, A22:
Great Britain's Infantry Mk IV, A22, Churchill Mk VII
Royal Armored Corps Tank Museum
Infantry Mk IV, Churchill Mk VII, A22. A tank of the 6th Guards Armored Brigade crossing a bridge during advance on Celle in April 1945:
Great Britain's Infantry Mk IV, A22, Churchill Mk VII. A tank of the 6th Guards Armored Brigade crossing a bridge during advance on Celle in April 1945
©IWM
Infantry Mk IV, Churchill Mk VII, A22:
Great Britain's Infantry Mk IV, A22, Churchill Mk VII
©IWM
Infantry Mk IV, Churchill Mk VII and Mk IV NA, A22. Nearest tank is Churchill Mk IV NA and others are Churchill Mk VIIs:
Great Britain's Infantry Mk IV, Churchill Mk VII and Mk IV NA, A22. Nearest tank is Churchill Mk IV NA and others are Churchill Mk VIIs
©IWM

Design

Had round driver's port and escape doors.1,7

The commander had a new cupola which allowed for better viewing when buttoned up.1 There were eight episcopes in the revolving turret hatch.1

Due to the heavier armor7 and features it weight about a ton more than previous Churchills.1 A heavier suspension and improved gearbox were installed.1,7 The speed was governed to 12 3/4 mph.1

Was also the basis for the Churchill Crocodile.1

Usage

Was main tank in three Churchill tank brigades in Normandy.1

Specifications

 
Churchill (A22) Mk VII
Crew 52,4,5,7,8
Physical Characteristics  
Weight 89,600 lb3,5
40,642 kg5,6,9
40 tons4,6,8,9, 40.1 tons2
Length 24' 5"4,5,7
7.37 m2, 7.442 m5
Height 9'4,7, 11' 4"3,5,6,9
3.45 m6,9, 3.454 m5, 2.78 m2
Width 11' 4"4,5,7
2.438 m5, 3.33 m2
Width over tracks  
Ground clearance 0.53 m2
Ground contact length  
Ground pressure 13.37 psi
0.94 (kg/cm2)2
Turret ring diameter  
Armament  
Main 75 mm L/402,6,9
75 mm4
75 mm QFSA8
Secondary see notes
MG 3: MGs2
MG - coaxial 1: 7.92 mm Besa MG8
MG - hull 1: 7.92 mm Besa MG8
Side arms  
Quantity  
Main 822, 84
Secondary  
MG 7,1252
Side arms  
Armor Thickness (mm) 25 - 1524,5,8, 1526,7,9
Hull Front, Upper 139-1522
Hull Front, Lower  
Hull Sides, Upper 952
Hull Sides, Lower  
Hull Rear 502
Hull Top 192
Hull Bottom 252
Turret Front 1522
Turret Sides 952
Turret Rear 952
Turret Top 202
Engine (Make / Model) Bedford2,4,5,7,8
Bore / stroke  
Cooling Water2
Cylinders 2x62,5,7, Twin flat 68
Capacity  
Net HP 3504,5,7,8, 3502 @ 2,200 rpm2
Power to weight ratio  
Compression ratio  
Transmission (Type) 4 forward2, 1 reverse2
Steering  
Steering ratio  
Starter  
Electrical System  
Ignition  
Fuel (Type) Gasoline2,5
Octane  
Quantity 682 liters2
Fuel consumption road  
Fuel consumption cross country  
Performance  
Traverse 360°
Speed - Road 12.5 mph3,4,5,6,7, 12.75 mph1
20 kph5, 21.7 kph2
Speed - Cross Country 8 mph5
12.8 kph5
Range - Road 90 miles5,6
144.8 km5, 228 km2
Range - Cross Country  
Turning radius  
Elevation limits  
Fording depth 3' 4"5
0.91 m2, 1.016 m5
Trench crossing 10'5
3.048 m5
Vertical obstacle 2' 6"5
0.76 m5
Climbing ability  
Suspension (Type)  
Wheels each side  
Return rollers each side  
Tracks (Type) Manganese1
Length  
Width 559 mm2
Number of links  
Pitch  
Tire tread Steel2
Track centers/tread  

Sources:

  1. AFV 1, Churchill, B.I.T. Mk IV, B.T. White
  2. Panzer Truppen The Complete Guide to the Creation and Combat Employment of Germany's Tank Force 1943-1945, Thomas L. Jentz, 1996
  3. British and American Tanks of World War Two, The Complete Illustrated History of British, American, and Commonwealth Tanks 1933-1945, Peter Chamberlain and Chris Ellis, 1969
  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. The Illustrated Guide to Tanks of the World, George Forty, 2006
  7. Tanks of World War II, Duncan Crow, 1979
  8. The Royal Armoured Corps Tank Museum, 1956
  9. World War I and II Tanks, George Forty, 2012
20th Century American Military History Crucial Site