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United States
37 mm Gun Motor Carriage M6

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The 37 mm Gun Motor Carriage M6 based on the existing fully tracked SP Gun and was in use from 1942.

Flag of World War 2 United States

General Details
Specifications
Operational Date(s)1942
Quantity Produced5380
Weightunknown
Crew4
M.G's smalln/a
M.G's large(>10mm)n/a
Length4.58 mtr
Width2.26 mtr
Height2.12 mtr
Engine Details/Performance
Max Road Speed55 mph
Max Cross Country Speed20 mph
Range Road180 miles
Range Cross Country72 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power99 hp
Power/Weightunknown
General Information
The 37 mm Gun Motor Carriage M6 based on the existing fully tracked SP Gun and was in use from 1942.

Its main armament consisted of a 37mm Antitank Gun M3 which could penetrate 64 mm of flat plate at 200 metres


Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Frontn/a
Siden/a
Rearn/a
Topn/a
Hull
Frontn/a
Siden/a
Rearn/a
Topn/a
Armour (x)mm @ (y)° (Effective mm @ 0°)



Weapon Details
Flag
37mm Antitank Gun M3
(Anti Tank Gun)
Blank
photo of 37mm Antitank Gun M3 from Wikipedia
History
Used against the Japanese in the Phillipines in 1941, and proved effective, however when used in the North Africa Campaign the shells bounced off the German medium tanks. This gun was also used in a number of American Tanks.
ManufacturerWatervliet Arsenal,
Manufactured1940 - 1944
Calibre37mm
Rate of Fire25 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP M74 Shot
(AP Armor Piercing)
37mm 0.86Kg 885M/Sec
Quoted Penetration 36mm @ 500mtr/0°
Range(Mtr)1002004008001200160020002400
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)
37mm 0.73Kg 792M/Sec 0.039Kg explosive
Maximum Range not shown as gun elevation is limited
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.57 1.29 2.25 3.56 5.51 8.63
Direct Fire
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.27 0.57 1.29 2.25 3.56 5.51 8.63
Hit Probability(%) 98 98 98 93 57 22 3 1
Blast/Fragmentation Effects
Burst radius Infantry in open 99% kill0 mtr Burst radius Infantry in open 66% kill1 mtr
Burst radius Infantry in open 33% kill3 mtr  Armour Penetration inc roof at 1 mtr0 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.

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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