Churchill IV

The Tank, Infantry, Mk IV (A22) was a British heavy infantry tank used in the Second World War, best known for its heavy armour, large longitudinal chassis with all-around tracks with multiple bogies, and its use as the basis of many specialist vehicles. It was one of the heaviest Allied tanks of the war.

Churchill IV
Class Vehicle
Type Armoured Fighting Vehicle
Manufacturer Dennis Specialist Vehicles Limited
Production Period 1942 - 1943
Origin United Kingdom - UK (Great Britain)
Country Name Origin Year
United Kingdom - UK (Great Britain) 1942
ManufacturerName Production From Production To Quantity
Newton, Chambers & Company View
Metro Cammell Weymann (MCW) View
Leyland Motors Limited View
Beyer, Peacock and Company View
Dennis Specialist Vehicles Limited 1942 1943 1622 View
GENERAL DATA
Formal DesignationInfantry Tank, Churchill Mk. IV (A22C)
Manufacturer(s)Dennis Bros., GRCW, Newton Chambers, Metro-Cammell, Charles Roberts, Leyland, Beyer Peacock
Production Quantity1622Production Period1942-1943
TypeHeavy/Infantry SupportCrew5
Length /hull (m)7.65/7.35Barrel Overhang (m)0
Width /vehicle (m)3.25/2.74Height (m)2.45
Combat Weight (kg)39600Radio EquipmentNo. 19
FIREPOWER
Primary Armament57mm ROQF 6-pounder Mk. III or VAmmunition Carried84
Traverse (degrees)Hydraulic (360°)Elevation (degrees)-12° to +20°
Traverse speed (360°)n.a.Sightn.a.
Secondary Armament2 x 7.92mm Besa MG (coaxial, bow)Ammunition Carried6925
1 x .303 Bren MG (AA)600
2-inch bomb thrower30 (smoke)


MOBILITY CHARACTERISTICS
Engine Make & ModelBedford Twin-SixTrack Links72/track
Type & DisplacementHO12, 21.3 litresTrack Width55.9cm
Horsepower (max.)350hp@2200rpmTrack Ground Contact381cm
Power/Weight Ratio8.8 hp/tGround Pressure13.1 psi
Gearbox4 forward, 1 reverseGround Clearance (m)0.51
FuelGasoline (Petrol)Turning Radius (m)skid
Range on/off road (km)259/154Gradient (degrees)30°
Mileage (liters/100km)334 on/561 off roadVertical Obstacle (m)1.13
Fuel Capacity (liters)682 + 148 auxilliaryFording (m)0.8
Speed on/off road25/13 km/hTrench Crossing (m)2.8
ARMOR PROTECTION
Armor (mm@degrees)FrontSideRearTop/Bottom
Hull89mm@65° (nose)76mm@90°64mm@90°19mm@0°
Superstructure38mm@25° (glacis)--19mm@0°
101mm@86° (driver)
Turret89mm@90°89mm@90°89mm@90°35mm@0°
Mantletn.a.---

BT, TD1, BAT, GBT, BP26, TChT

End notes