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United States
Multiple Gun Motor Carriage M13

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The Multiple Gun Motor Carriage M13 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 Produced535
Weightunknown
Crew4
M.G's smalln/a
M.G's large(>10mm)2
Length6.56 mtr
Width2.00 mtr
Height2.26 mtr
Engine Details/Performance
Max Road Speed45 mph
Max Cross Country Speed25 mph
Range Road200 miles
Range Cross Country80 miles
Fuel TypePetrol
Fuel Capacity60 gal
Horse Power128 hp
Power/Weightunknown
General Information
The Multiple Gun Motor Carriage M13 based on the existing fully tracked SP Gun and was in use from 1942.

It was armed with 2 large machine guns consisting of 0.5 inch Browning Machine Gun M2 .


Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Front12mm@(12mm)
Side6mm@(6mm)
Rear6mm@(6mm)
Topn/a
Hull
Front12mm@(12mm)
Side6mm@(6mm)
Rear6mm@(6mm)
Topn/a
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 12 mm - Minimum n/a mm



Weapon Details
Flag
0.5 inch Browning Machine Gun M2
(Machine Gun)
Blank
Calibre12.70mm
Rate of Fire480 rpm
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
MG
(AP Standard Small Arms)
12.70mm 0.04Kg 884M/Sec
Quoted Penetration 29mm @ 100mtr/0°
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.28 0.67 2.46
Penetration(mm@30°) 19 15 12 5
Penetration(mm@0°) 22 18 14 6
Hit Probability(%) 98 98 98 48

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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