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Britain
Guy Armoured Car MK I

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The Guy Armoured Car MK I was designed in 1938, manufactured by Guy Motors based on the existing 4 x 4 drive Truck and was in use from 1939 to 1945.

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General Details
Specifications
Operational Date(s)1939 - 1945
Quantity Produced50
Weight5.2 tonne
Crew3
M.G's small1
M.G's large(>10mm)1
Length4.15 mtr
Width2.08 mtr
Height2.31 mtr
Engine Details/Performance
Max Road Speed40 mph
Max Cross Country Speed20 mph
Range Road220 miles
Range Cross Country99 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power53 hp
Power/Weight10 hp/tonne
General Information
The Guy Armoured Car MK I was designed in 1938, manufactured by Guy Motors based on the existing 4 x 4 drive Truck and was in use from 1939 to 1945.

The vehicle was powered by Meadows '4ELA' petrol powerplant producing 53 HP which could drive the vehicle on roads at up to 40 mph with a range of about 220 miles before refuelling. Its cross country performance was good providing a max speed of about 20 mph and a range of about 99 miles.

It was armed with 1 light machine gun , a Vickers Medium Machine Gun. and 1 large machine gun. consisting of Vickers Heavy Machine Gun and Vickers Heavy Machine Gun .

This was the first British all welded armoured vehicle used by the British army.

Armour Details
Turret
Front14mm@20°(15mm)
Side14mm@20°(15mm)
Rear14mm@(14mm)
Top10mm@90°(10mm)
Superstructure
Front14mm@40°(18mm)
Side14mm@15°(14mm)
Rear14mm@60°(28mm)
Top10mm@90°(10mm)
Hull
Front14mm@40°(18mm)
Side14mm@15°(14mm)
Rear14mm@30°(16mm)
Top10mm@90°(10mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 28 mm - Minimum 10 mm



Weapon Details
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Vickers Medium Machine Gun
(Machine Gun)
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photo of Vickers Medium Machine Gun from Vickers medium machine gun Wikipedia
History
The Vickers medium machine gun was designed during World War I as a replacement for the Maxim gun from which its design was taken.

It served throughout World War I and II as a fixed point machine gun used to suppress areas and act as a defensive point.
ManufacturerVickers
Manufactured1912 - 1968
Calibre7.70mm
LengthL/93
Rate of Fire450 rpm
Number of Rounds 2000
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Standard british .303 round - MkVIII (only used in Vickers Mg)
(BALL Standard Small Arms)
7.70mm 0.01Kg 844M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.14
Penetration(mm@30°) 2
Penetration(mm@0°) 3
Hit Probability(%) 98


Weapon Details
Flag
Vickers Heavy Machine Gun
(Machine Gun)
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History
The Vickers heavy machine gun was designed during World War I as a replacement for the Maxim gun from which its design was taken.

This machine gun that fired .5 inch ammunition was used mostly in tanks.
ManufacturerVickers
Manufactured1912 - 1968
Calibre12.70mm
LengthL/80
Rate of Fire450 rpm
Number of Rounds 1000
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
Vickers .5 inch bullet
(AP Armor Piercing)
12.70mm 0.037Kg 770M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.14 0.31
Penetration(mm@30°) 6 4
Penetration(mm@0°) 7 5
Hit Probability(%) 98 98


 
.5 inch Armour Piercing W. Mark 1.z
(AP Standard Small Arms)
12.70mm 0.037Kg 800M/Sec
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.14 0.31 0.74 2.96
Penetration(mm@30°) 16 12 9 4
Penetration(mm@0°) 19 15 11 5
Hit Probability(%) 98 98 98 29

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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