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Britain Cruiser Mk VII (Cavalier) Ordnance classification - A24
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| The Cruiser Mk VII was designed in 1941, manufactured by Nuffield Mechanization & Aero Limited based on the existing fully tracked A15 and was in use from 1942 to 1945. |
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| Specifications | Operational Date(s) | 1942 - 1945 | Ordnance classification | A24 | Quantity Produced | 500 | Weight | 26.5 tonne | Crew | 5 | M.G's small | 2 | M.G's large(>10mm) | n/a | Length | 6.40 mtr | Width | 2.95 mtr | Height | 2.46 mtr | Engine Details/Performance | Max Road Speed | 24 mph | Max Cross Country Speed | 13 mph | Range Road | 165 miles | Range Cross Country | 66 miles | Fuel Type | Petrol | Fuel Capacity | unknown | Horse Power | 410 hp | Power/Weight | 15 hp/tonne | | General Information | The Cruiser Mk VII was designed in 1941, manufactured by Nuffield Mechanization & Aero Limited based on the existing fully tracked A15 and was in use from 1942 to 1945.
The vehicle was powered by Nuffield 'Liberty' petrol powerplant producing 410 HP which could drive the vehicle on roads at up to 24 mph with a range of about 165 miles before refuelling. Its cross country performance was good providing a max speed of about 13 mph and a range of about 66 miles.
It was armed with 2 light machine guns which were BESA Machine Gun 7.92mms. Its main armament consisted of an Ordnance Q.F. 6pdr 7cwt MKI-III which could penetrate 73 mm of flat plate at 800 metres
The A24 was a heavy cruiser tank based on the Crusader, the first model armed with the 6pdr gun, and was only used for training. Eventually ending in the Cromwell this version had the 410 Hp Liberty engine, the Cavalier was only used for training. | |
| 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 |
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Weapon Details |
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BESA Machine Gun 7.92mm (Machine Gun) |
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| | History | |
| | Developed by BSA from the Czechoslovak ZB vz.53 heavy machine gun which used the German 7.92×57mm Mauser ammunition. It was mostly used as the main armament of the Light Tank Mk VIC and Armoured cars such as the Humber Mk I to Mk III.
This 7.92mm gun was used in the armoured divisions as their supply lines were separated from the infantry who used .303 bullets. Once the British started capturing German ammunition this could be immediately used in these tank machine guns. |
| | Manufactured | 1939 - 1966 |
| | Calibre | 7.92mm |
| | Length | L/93 |
| | Rate of Fire | 450 rpm |
| | Number of Rounds | 4950 |
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Ammunition Details |
Name/Id |
Calibre Weight MVelocity |
Explosive Content |
Cartridge SA, 7.92
(AP Standard Small Arms)
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7.92mm 0.011Kg 785M/Sec | |
Quoted Penetration 11mm @ 1000mtr/0° |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.16 |
0.37 |
1.1 |
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Penetration(mm@30°) |
10 |
8 |
5 |
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Penetration(mm@0°) |
12 |
10 |
6 |
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Hit Probability(%) |
98 |
98 |
98 |
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Cartridge SA, 7.92
(BALL Standard Small Arms)
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7.92mm 0.012Kg 785M/Sec | |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.15 |
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Penetration(mm@30°) |
2 |
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Penetration(mm@0°) |
3 |
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Hit Probability(%) |
98 |
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Weapon Details |
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Ordnance Q.F. 6pdr 7cwt MKI-III (Anti Tank Gun) |
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| | 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 |
| | Number of Rounds | 64 |
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Ammunition Details |
Name/Id |
Calibre Weight MVelocity |
Explosive Content |
Shot, AP, Mks 1 to 7
(AP Armor Piercing)
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57mm 2.86Kg 853M/Sec | |
Quoted Penetration 68mm@915m |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.12 |
0.24 |
0.5 |
1.09 |
1.78 |
2.61 |
3.61 |
4.86 |
Penetration(mm@30°) |
90 |
83 |
74 |
63 |
53 |
44 |
35 |
28 |
Penetration(mm@0°) |
105 |
96 |
86 |
73 |
62 |
51 |
41 |
33 |
Hit Probability(%) |
98 |
98 |
98 |
98 |
77 |
41 |
22 |
8 |
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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.
© WWIITanks 1980-2024
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