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United States Medium M2A1 Ordnance classification - M2A1
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| The Medium M2A1 based on the existing Medium Tank and was in use from 1940. |
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| Specifications | Operational Date(s) | 1940 | Ordnance classification | M2A1 | Quantity Produced | 74 | Weight | unknown | Crew | 6 | M.G's small | 8 | M.G's large(>10mm) | n/a | Length | 5.43 mtr | Width | 2.66 mtr | Height | 2.86 mtr | Engine Details/Performance | Max Road Speed | 30 mph | Max Cross Country Speed | 17 mph | Range Road | 130 miles | Range Cross Country | unknown | Fuel Type | Petrol | Fuel Capacity | 175 gal | Horse Power | 350 hp | Power/Weight | unknown | | General Information | The Medium M2A1 based on the existing Medium Tank and was in use from 1940.
It was armed with 8 light machine guns. Its main armament consisted of a 37mm Antitank Gun M6 which could penetrate 56 mm of flat plate at 400 metres
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| Turret | Front | | 32mm | @ | 47° | (47mm) | Side | | 25mm | @ | 5° | (25mm) | Rear | | 25mm | @ | 5° | (25mm) | Top | | 18mm | @ | 90° | (18mm) | | Superstructure | Front | | 32mm | @ | 45° | (45mm) | Side | | 25mm | @ | 0° | (25mm) | Rear | | 25mm | @ | 0° | (25mm) | Top | | 13mm | @ | 87° | (13mm) | |
Hull | Front | | 32mm | @ | 45° | (45mm) | Side | | 25mm | @ | 0° | (25mm) | Rear | | 25mm | @ | 0° | (25mm) | Top | | 13mm | @ | 87° | (13mm) | | Armour (x)mm @ (y)° (Effective mm @ 0°) | Effective Armour - Maximum 47 mm - Minimum 13 mm |
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Weapon Details |
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37mm Antitank Gun M6 (Anti Tank Gun) |
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| | History | |
| | This was the Tank mounted version of the 37mm M3 |
| | Manufacturer | Watervliet Arsenal |
| | Calibre | 37mm |
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Ammunition Details |
Name/Id |
Calibre Weight MVelocity |
Explosive Content |
AP M74 Shot
(AP Armor Piercing)
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37mm 0.86Kg 885M/Sec | |
Quoted Penetration 36mm @ 500mtr/0° |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.12 |
0.24 |
0.51 |
1.15 |
2.01 |
3.19 |
4.93 |
7.73 |
Penetration(mm@30°) |
61 |
55 |
48 |
38 |
30 |
22 |
16 |
10 |
Penetration(mm@0°) |
71 |
64 |
56 |
45 |
35 |
26 |
19 |
12 |
Hit Probability(%) |
98 |
98 |
98 |
96 |
64 |
25 |
8 |
2 |
HE M63 Shell
(HE High Explosive)
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37mm 0.73Kg 792M/Sec | 0.039Kg explosive |
Maximum Range not shown as gun elevation is limited |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.13 |
0.27 |
0.57 |
1.29 |
2.25 |
3.56 |
5.51 |
8.63 |
Direct Fire |
Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
Flight Time(Secs) |
0.13 |
0.27 |
0.57 |
1.29 |
2.25 |
3.56 |
5.51 |
8.63 |
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Hit Probability(%) |
98 |
98 |
98 |
93 |
57 |
22 |
3 |
1 |
Blast/Fragmentation Effects |
Burst radius Infantry in open 99% kill | 0 mtr |
Burst radius Infantry in open 66% kill | 1 mtr |
Burst radius Infantry in open 33% kill | 3 mtr |
Armour Penetration inc roof at 1 mtr | 0 mm |
An explosion within 1 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. |
An explosion within 3 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. |
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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
If you have any information, or comments on our site,
please E-Mail Simon at
wwiitanks@villagenet.co.uk
Page Last Updated: 2023-01-13 07:25:21
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