Canada Inf Tank Mk IV (Churchill 8 - VIII) Ordnance classification - A22
The Inf Tank Mk IV was designed in 1943, manufactured by Vauxhall Motors based on the existing fully tracked Churchill and was in use from 1944 to 1945.
General Details
Specifications
Operational Date(s)
1944 - 1945
Ordnance classification
A22
Quantity Produced
1600
Weight
40 tonne
Crew
5
M.G's small
2
M.G's large(>10mm)
n/a
Length
7.51 mtr
Width
3.28 mtr
Height
2.49 mtr
Engine Details/Performance
Max Road Speed
16 mph
Max Cross Country Speed
8 mph
Range Road
90 miles
Range Cross Country
36 miles
Fuel Type
Petrol
Fuel Capacity
190 gal
Horse Power
350 hp
Power/Weight
8 hp/tonne
General Information
The Inf Tank Mk IV was designed in 1943, manufactured by Vauxhall Motors based on the existing fully tracked Churchill and was in use from 1944 to 1945.
The vehicle was powered by Bedford '350HP' petrol powerplant producing 350 HP which could drive the vehicle on roads at up to 16 mph with a range of about 90 miles before refuelling. Its cross country performance was good providing a max speed of about 8 mph and a range of about 36 miles.
It was armed with 2 light machine guns. The Churchill Infantry tank was designed as a tank that could cope with movement through heavily shelled areas, and provide adequate protection for the crew.
The vehicle was layed out in a similar way to the tanks from the First World War with the rear Bedford 350hp engine driving the tracks, to the front via small idlers to the fron main idler, then via 11small sprung road wheels. The first vehicles had many mechanical faults and hence many subsequent modifications.
The MkVII this was a major redesign with a new turret firing the 75mm and redesigned hull and massively thicker armour than the MkVI.
Armour Details
Turret
Front
88mm
@
0°
(88mm)
Side
76mm
@
0°
(76mm)
Rear
89mm
@
0°
(89mm)
Top
16mm
@
90°
(16mm)
Superstructure
Front
88mm
@
20°
(94mm)
Side
76mm
@
0°
(76mm)
Rear
64mm
@
0°
(64mm)
Top
16mm
@
90°
(16mm)
Hull
Front
38mm
@
70°
(111mm)
Side
76mm
@
0°
(76mm)
Rear
64mm
@
0°
(64mm)
Top
16mm
@
90°
(16mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 111 mm - Minimum 16 mm
Hit probability is based on a static 2 x 2.4 metre panel at 0 degrees(vertical) at the range specified.
The data that has been used to create these records has come from Wikipedia, The Lone Sentry, The Bundes Archive
and numerous books and websites that have provided the detailed information that has not been available anywhere else. The
information we use to calculate the penetration tables, flight times and the hit probability comes from the Gun Calibre,
the Shell Mass(Kg) and the muzzle velocity, plus range reductions to allow for gravity and wind resistance. This calculation
originally came from a pre-war Krupp calculation which has been modified, and seems to fit the actual test results.
