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Britain
AEC Armoured Car Mark III

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The AEC Armoured Car Mark III was designed in 1940, manufactured by the Associated Equipment Company(AEC) based on the existing 4 x 4 drive Matador Artillery tractor and was in use from 1943 to 1945.

Photo of AEC Armoured Car Mark III
AEC Armoured Car Mark III scale illustration

General Details
Specifications
Operational Date(s)1943 - 1945
Quantity Produced205
Weight14 tonne
Crew4
M.G's small2
M.G's large(>10mm)n/a
Length5.23 mtr
Width2.77 mtr
Height2.56 mtr
Engine Details/Performance
Max Road Speed40 mph
Max Cross Country Speed20 mph
Range Road250 miles
Range Cross Country112 miles
Fuel TypeDiesel
Fuel Capacityunknown
Horse Power158 hp
Power/Weight11 hp/tonne
General Information
The AEC Armoured Car Mark III was designed in 1940, manufactured by the Associated Equipment Company(AEC) based on the existing 4 x 4 drive Matador Artillery tractor and was in use from 1943 to 1945.

The vehicle was powered by Associated Equipment Company(AEC) 'AEC 197' diesel powerplant producing 158 HP which could drive the vehicle on roads at up to 40 mph with a range of about 250 miles before refuelling. Its cross country performance was good providing a max speed of about 20 mph and a range of about 112 miles.

It was armed with 2 light machine guns which were Bren Guns and BESA Machine Gun 7.92mm. Its main armament consisted of an Ordnance Q.F. 75mm which could penetrate 106 mm of flat plate at 200 metres

This vehicle was originally designed to take the Valentine MkII turret with the Ordnance Q.F. 2pdr gun, but the MkIII was uprated to use the Ordnance Q.F. 75mm gun for the close support role and had thicker armour.

Armour Details
Turret
Front65mm@(65mm)
Side60mm@(60mm)
Rear60mm@(60mm)
Top10mm@90°(10mm)
Superstructure
Front30mm@45°(42mm)
Side30mm@(30mm)
Rear15mm@45°(21mm)
Top10mm@90°(10mm)
Hull
Front30mm@45°(42mm)
Side30mm@(30mm)
Rear15mm@45°(21mm)
Top16mm@90°(16mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 65 mm - Minimum 16 mm



Weapon Details
Flag
Bren Gun Blank
photo of Bren Gun from Bren gun photo from Wikipedia
History
The Bren gun was licenced from the Czechoslovak ZB vz.27 light machine gun which was designed and manufactured in Brno from 1935.

It fired the standard British .303 rifle round.
Manufactured1930 - 2004
Calibre7.70mm
LengthL/82
Rate of Fire500 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Standard british .303 round(AP)
7.70mm 0.017Kg 783M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.15
Penetration(mm@30°) 4
Penetration(mm@0°) 5
Hit Probability(%) 98


 
Standard british .303 round - HPBT(MG)
7.70mm 0.01Kg 761M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.17
Penetration(mm@30°) 1
Penetration(mm@0°) 2
Hit Probability(%) 98


Weapon Details
Flag
BESA Machine Gun 7.92mm Blank
photo of BESA Machine Gun 7.92mm from Wikipedia
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.
Manufactured1939 - 1966
Calibre7.92mm
LengthL/93
Rate of Fire450 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Cartridge SA, 7.92(AP)
7.92mm 0.012Kg 785M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.15
Penetration(mm@30°) 2
Penetration(mm@0°) 3
Hit Probability(%) 98


Weapon Details
Flag
Ordnance Q.F. 75mm Blank
photo of Ordnance Q.F. 75mm from Wikipedia
History
This was a temporary fix to the problem of 6pdr guns not having a powerful enough HE shell. It was created by boring out the British 57mm 6pdr to take the American 75mm AP/HE shells, which reduced the Anti Tank performance but provided HE support.
Manufactured1943 - 1945
Calibre75mm
LengthL/32
Number of Rounds 45
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP(AP)
75mm 6.58Kg 618M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.16 0.33 0.68 1.45 2.31 3.29 4.41 5.71
Penetration(mm@30°) 98 91 83 73 64 55 46 38
Penetration(mm@0°) 114 106 96 85 74 64 54 45
Hit Probability(%) 98 98 98 88 54 25 15 3

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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