The Vickers Mk IIA was an improved version of the Vickers Mk II with minor improvements.
General Details
Specifications
Operational Date(s)
1930
Ordnance classification
Quantity Produced
0
Weight
unknown
Crew
5
M.G's small
3
M.G's large(>10mm)
n/a
Length
5.38 mtr
Width
2.80 mtr
Height
3.08 mtr
Engine Details/Performance
Max Road Speed
15 mph
Max Cross Country Speed
unknown
Range Road
0 miles
Range Cross Country
unknown
Fuel Type
Unknown
Fuel Capacity
unknown
Horse Power
90 hp
Power/Weight
unknown
General Information
The Vickers Mk IIA 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 3pdr gun 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
Front
n/a
Side
n/a
Rear
n/a
Top
n/a
Superstructure
Front
n/a
Side
n/a
Rear
n/a
Top
n/a
Hull
Front
n/a
Side
n/a
Rear
n/a
Top
n/a
Armour (x)mm @ (y)° (Effective mm @ 0°)
Weapon Details
Ordnance Q.F. 2pdr (Anti Tank Gun)
History
Used both as an Anti Tank gun and as a Tank gun the 2pdr was first used in Belgium in 1939. 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). However the 2pdr manufacture was continued but was slowly replaced by the 6pdr from 1942.
Manufactured
1936 - 1944
Calibre
40mm
Length
L/50
Rate of Fire
22 rpm
Ammunition Details
Name/Id
Calibre Weight MVelocity
Explosive Content
AP(AP)
40mm 1.08Kg 792M/Sec
Quoted Penetration 53mm@455m
Range(Mtr)
100
200
400
800
1200
1600
2000
2400
Flight Time(Secs)
0.13
0.27
0.56
1.26
2.17
3.37
5.06
7.58
Penetration(mm@30°)
64
58
51
41
33
25
19
13
Penetration(mm@0°)
74
67
59
48
39
30
22
16
Hit Probability(%)
98
98
98
93
60
25
6
2
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.