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Britain
Light Tank Mk VII ICS (Tetrarch ICS) |
| The Light Tank Mk VII ICS based on the existing Light Tank and was in use from 1940. |
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| | Specifications | | Operational Date(s) | 1940 | | Ordnance classification | | | Quantity Produced | 0 | | Weight | unknown | | Crew | 3 | | M.G's small | 1 | | M.G's large(>10mm) | n/a | | Length | 4.15 mtr | | Width | 2.34 mtr | | Height | 2.12 mtr | | Engine Details/Performance | | Max Road Speed | 30 mph | | Max Cross Country Speed | 28 mph | | Range Road | 140 miles | | Range Cross Country | unknown | | Fuel Type | Unknown | | Fuel Capacity | unknown | | Horse Power | 120 hp | | Power/Weight | unknown | | | General Information | The Light Tank Mk VII ICS based on the existing Light Tank and was in use from 1940.
It was armed with 1 light machine gun. Its main armament consisted of an Ordnance Q.F. 3inch Howitzer which could penetrate 84 mm of flat plate at 800 metres
The Light Tank MkVII Tetrarch was a completely new design for a light tank by Vickers, first used in 1942 then adopted for glider deployment by the Hamilcar glider.
The rear engined 120hp engine drove the tracks under the four road wheels, past the rear idler and back over the road wheels.
The turret was designed for the 3inch howitzer. | |
| | Turret | | Front | | 14mm | @ | 10° | (14mm) | | Side | | 14mm | @ | 10° | (14mm) | | Rear | | 14mm | @ | 10° | (14mm) | | Top | | 4mm | @ | 90° | (4mm) |
| | Superstructure | | Front | | 14mm | @ | 45° | (20mm) | | Side | | 10mm | @ | 0° | (10mm) | | Rear | | 10mm | @ | 0° | (10mm) | | Top | | 5mm | @ | 90° | (5mm) |
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| Hull | | Front | | 14mm | @ | 30° | (16mm) | | Side | | 10mm | @ | 0° | (10mm) | | Rear | | 10mm | @ | 0° | (10mm) | | Top | | 5mm | @ | 90° | (5mm) |
| | Armour (x)mm @ (y)° (Effective mm @ 0°) | | Effective Armour - Maximum 20 mm - Minimum 5 mm |
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| Weapon Details |
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Ordnance Q.F. 3inch Howitzer
(Field Gun) |
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| | Manufactured | unknown - 1945 |
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| | Calibre | 76.20mm |
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| Ammunition Details |
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| Name/Id |
Calibre Weight MVelocity |
Explosive Content |
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3 inch howitzer AP
(HE High Explosive)
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76.20mm 6.3Kg 650M/Sec | 0.600Kg explosive |
| Range(Mtr) | 1000 | 2000 | 3000 | 4000 | 5000 | 6000 | 7000 | 8000 |
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| Flight Time(Secs) |
1.77 |
4.17 |
7.61 |
12.96 |
22.39 |
43.45 |
132.43 |
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| Direct Fire |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.16 |
0.32 |
0.65 |
1.38 |
2.19 |
3.12 |
4.17 |
5.39 |
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| Hit Probability(%) |
98 |
98 |
98 |
90 |
60 |
25 |
15 |
6 |
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| Blast/Fragmentation Effects |
| Burst radius Infantry in open 99% kill | 3 mtr |
Burst radius Infantry in open 66% kill | 6 mtr |
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| Burst radius Infantry in open 33% kill | 15 mtr |
Armour Penetration inc roof at 1 mtr | 1 mm |
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| An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal. |
| An explosion within 6 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. |
| An explosion within 15 mtr of infantry in the open will cause 33% casualties. |
| The blast effect of this shell exploding within 1 mtr of an armoured vehicle will penetrate 1 mm of the tank armour including the roof. |
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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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