Canada Cruiser Mk VIII (Cromwell III) (Cromwell III)
The Cromwell tank was designed as a heavy cruiser tank that could rapidly move and provide good A/T performance, in appearance it looked like the Cavalier.
General Details
Specifications
Operational Date(s)
1944
Ordnance classification
Quantity Produced
0
Weight
unknown
Crew
5
M.G's small
1
M.G's large(>10mm)
n/a
Length
6.40 mtr
Width
2.92 mtr
Height
2.49 mtr
Engine Details/Performance
Max Road Speed
40 mph
Max Cross Country Speed
18 mph
Range Road
173 miles
Range Cross Country
unknown
Fuel Type
Petrol
Fuel Capacity
139 gal
Horse Power
600 hp
Power/Weight
unknown
General Information
The Cromwell tank was designed as a heavy cruiser tank that could rapidly move and provide good A/T performance, in appearance it looked like the Cavalier.
The vehicle had a rear Rolls Royce Meteor engine producing 600hp driving the tracks, towards the main front idler over the 5 large road wheels, round the idler and back under the roadwheels in the standard Christie style.
The Mark III was a Centaur Mk I with the hull machine gun was removed to increase ammunition storage and the Meteor engine added.
Armour Details
Turret
Front
76mm
@
0°
(76mm)
Side
63mm
@
0°
(63mm)
Rear
57mm
@
0°
(57mm)
Top
20mm
@
81°
(20mm)
Superstructure
Front
63mm
@
0°
(63mm)
Side
32mm
@
0°
(32mm)
Rear
32mm
@
0°
(32mm)
Top
20mm
@
90°
(20mm)
Hull
Front
57mm
@
0°
(57mm)
Side
32mm
@
0°
(32mm)
Rear
32mm
@
0°
(32mm)
Top
20mm
@
90°
(20mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 76 mm - Minimum 20 mm
Weapon Details
Ordnance Q.F. 6pdr 7cwt MKII MKIV (Anti Tank Gun)
History
The 6pdr Mk II—differed from the pre-production Mk I in having a shorter L/43 barrel, because of shortage of suitable lathes. The subsequent Mk IV was fitted with an L/50 barrel, with muzzle brake.
Manufactured
1942 - 1945
Calibre
57mm
Length
L/43
Ammunition Details
Name/Id
Calibre Weight MVelocity
Explosive Content
AP(AP)
57mm 2.84Kg 900M/Sec
Quoted Penetration 68mm@915m
Range(Mtr)
100
200
400
800
1200
1600
2000
2400
Flight Time(Secs)
0.11
0.23
0.48
1.03
1.69
2.47
3.42
4.61
Penetration(mm@30°)
95
87
77
66
56
46
37
29
Penetration(mm@0°)
110
101
90
77
65
54
43
34
Hit Probability(%)
98
98
98
98
81
48
25
8
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.