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Britain
Guy Armoured Car MK IA |
| The Guy Armoured Car MK IA 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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| | Specifications | | Operational Date(s) | 1939 - 1945 | | Quantity Produced | 50 | | Weight | 5.2 tonne | | Crew | 3 | | M.G's small | 1 | | M.G's large(>10mm) | 1 | | Length | 4.15 mtr | | Width | 2.08 mtr | | Height | 2.31 mtr | | Engine Details/Performance | | Max Road Speed | 40 mph | | Max Cross Country Speed | 20 mph | | Range Road | 220 miles | | Range Cross Country | 99 miles | | Fuel Type | Petrol | | Fuel Capacity | unknown | | Horse Power | 53 hp | | Power/Weight | 10 hp/tonne | | | General Information | The Guy Armoured Car MK IA 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 BESA Machine Gun 7.92mm. and 1 large machine gun. consisting of BESA Machine Gun 15mm .
This was the first British all welded armoured vehicle used by the British army. | |
| | Turret | | Front | | 14mm | @ | 20° | (15mm) | | Side | | 14mm | @ | 20° | (15mm) | | Rear | | 14mm | @ | 0° | (14mm) | | Top | | 10mm | @ | 90° | (10mm) |
| | Superstructure | | Front | | 14mm | @ | 40° | (18mm) | | Side | | 14mm | @ | 15° | (14mm) | | Rear | | 14mm | @ | 60° | (28mm) | | Top | | 10mm | @ | 90° | (10mm) |
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| Hull | | Front | | 14mm | @ | 40° | (18mm) | | Side | | 14mm | @ | 15° | (14mm) | | Rear | | 14mm | @ | 30° | (16mm) | | Top | | 10mm | @ | 90° | (10mm) |
| | Armour (x)mm @ (y)° (Effective mm @ 0°) | | Effective Armour - Maximum 28 mm - Minimum 10 mm |
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| Weapon Details |
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BESA Machine Gun 7.92mm
(Machine Gun) |
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| | History | |
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| | 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. |
| | Manufactured | 1939 - 1966 |
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| | Calibre | 7.92mm |
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| | Length | L/93 |
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| | Rate of Fire | 450 rpm |
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| | Number of Rounds | 2000
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| Ammunition Details |
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| Name/Id |
Calibre Weight MVelocity |
Explosive Content |
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Cartridge SA, 7.92
(AP Standard Small Arms)
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7.92mm 0.011Kg 785M/Sec | |
| Quoted Penetration 11mm @ 1000mtr/0° |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.16 |
0.37 |
1.1 |
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| Penetration(mm@30°) |
10 |
8 |
5 |
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| Penetration(mm@0°) |
12 |
10 |
6 |
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| Hit Probability(%) |
98 |
98 |
98 |
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Cartridge SA, 7.92
(BALL Standard Small Arms)
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7.92mm 0.012Kg 785M/Sec | |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.15 |
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| Penetration(mm@30°) |
2 |
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| Penetration(mm@0°) |
3 |
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| Hit Probability(%) |
98 |
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| Weapon Details |
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BESA Machine Gun 15mm
(Machine Gun) |
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| | History | |
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| | Developed by BSA from the Czechoslovak ZB vz.60 heavy machine gun which used 15mm ammunition.
This 15mm 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. |
| | Manufactured | 1940 - 1949 |
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| | Calibre | 15mm |
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| | Length | L/80 |
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| | Rate of Fire | 450 rpm |
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| | Number of Rounds | 1000
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| Ammunition Details |
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| Name/Id |
Calibre Weight MVelocity |
Explosive Content |
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Cartridge S.A. Ball 15mm Mark Iz
(AP Standard Small Arms)
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15mm 0.07Kg 883M/Sec | |
| Quoted Penetration 27mm @ 100mtr/0° |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.12 |
0.26 |
0.62 |
2 |
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| Penetration(mm@30°) |
25 |
20 |
16 |
8 |
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| Penetration(mm@0°) |
29 |
24 |
19 |
10 |
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| Hit Probability(%) |
98 |
98 |
98 |
69 |
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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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![photo of BESA Machine Gun 7.92mm from Wikipedia](javascript:launch("https://upload.wikimedia.org/wikipedia/commons/b/bd/Besa_machine_gun.JPG"))
