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Britain
Vickers Mk IIA.C.S

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The Vickers Mk IIA.C.S based on the existing Medium Tank and was in use from 1932.

Flag of World War 2 Britain

General Details
Specifications
Operational Date(s)1932
Ordnance classification
Quantity Produced0
Weightunknown
Crew5
M.G's small3
M.G's large(>10mm)n/a
Length5.38 mtr
Width2.80 mtr
Height3.08 mtr
Engine Details/Performance
Max Road Speed15 mph
Max Cross Country Speedunknown
Range Road0 miles
Range Cross Countryunknown
Fuel TypeUnknown
Fuel Capacityunknown
Horse Power90 hp
Power/Weightunknown
General Information
The Vickers Mk IIA.C.S based on the existing Medium Tank and was in use from 1932.

It was armed with 3 light machine guns. Its main armament consisted of an Ordnance Q.F. 37mm Mk 1 which could penetrate 34 mm of flat plate at 800 metres

The Vickers Mk IIA Close Support was an improved version of the Vickers Mk II with minor improvements.

The Armstrong-Siddley 90hp engine drove the rear drive sprocket over 4 return rollers to the fron idler than back to the rear via 11 small road wheels.

The turret was rounded with flat sides and contained the 3.7 inch howitzer and 4 hotchkiss machine guns. The two Vickers .303 machine guns were located in ball mounts on the side of the vehicle.

Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Frontn/a
Siden/a
Rearn/a
Topn/a
Hull
Frontn/a
Siden/a
Rearn/a
Topn/a
Armour (x)mm @ (y)° (Effective mm @ 0°)



Weapon Details
Flag
Ordnance Q.F. 37mm Mk 1
(Anti Aircraft)
Blank
photo of Ordnance Q.F. 37mm Mk 1 from Wikipedia
History
Used both as an Anti Tank gun and as a Tank gun the 2pdr was first used by the Belgians in 1939 and the majority of the British guns were captured by the Germans at Dunkirk and given their designation of 4.0 cm Pak 192(e) or 4.0 cm Pak 154(b).
Manufactured1936 - 1944
Calibre37mm
LengthL/52
Rate of Fire22 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
37 mm sk ptr m/34 slpprj m/38
(AP Armor Piercing)
37mm 0.74Kg 785M/Sec
Quoted Penetration 40mm @ 400mtr/30° ( ≈ 46mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.57 1.3 2.27 3.6 5.55 8.73
Penetration(mm@30°) 46 41 36 29 22 17 12 7
Penetration(mm@0°) 54 48 42 34 26 20 14 9
Hit Probability(%) 98 98 98 93 57 22 3 1



37 mm sk ptr m/34 sgr m/43
(HE High Explosive)
37mm 0.68Kg 805M/Sec 0.210Kg explosive
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 1.7 5.42
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.56 1.27 2.21 3.51 5.42 8.5
Hit Probability(%) 98 98 98 93 57 22 6 2
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill4 mtr Burst radius Infantry in open 66% kill8 mtr
Burst radius Infantry in open 33% kill20 mtr  Armour Penetration inc roof at 1 mtr0 mm
An explosion within 4 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 8 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 20 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 not cause any significant armour damage.


 
37 mm sk ptr m/34 slpgr m/39
(HEAT High Explosive Anti-Tank)
37mm 0.74Kg 775M/Sec
Quoted Penetration 39mm @ 100mtr/30° ( ≈ 45mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.58 1.32 2.29 3.64
Penetration(mm@30°) 39
Penetration(mm@0°) 39
Hit Probability(%) 98 98 98 90 57 22

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.

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