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Britain
Antitank SP76mm M10

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The Antitank SP76mm M10 was designed in 1942, manufactured by General Motors based on the existing fully tracked M4 Sherman and was in use from 1942 to 1945.


General Details
Specifications
Operational Date(s)1942 - 1945
Quantity Produced6406
Weightunknown
Crew5
M.G's smalln/a
M.G's large(>10mm)1
Length6.03 mtr
Width3.08 mtr
Height2.49 mtr
Engine Details/Performance
Max Road Speed30 mph
Max Cross Country Speed20 mph
Range Road322 miles
Range Cross Country128 miles
Fuel TypeDiesel
Fuel Capacity165 gal
Horse Power375 hp
Power/Weightunknown
General Information
The Antitank SP76mm M10 was designed in 1942, manufactured by General Motors based on the existing fully tracked M4 Sherman and was in use from 1942 to 1945.

The vehicle was powered by General Motors '6046 twin' diesel powerplant producing 375 HP which could drive the vehicle on roads at up to 30 mph with a range of about 322 miles before refuelling. Its cross country performance was good providing a max speed of about 20 mph and a range of about 128 miles.

It was armed with 1 large machine gun consisting of 0.5 inch Browning Machine Gun M2 Its main armament consisted of a 3 in Gun M7 L/53 which could penetrate 142 mm of flat plate at 200 metres .

This was the American M10 as built, and supplied on a Lend Lease basis.

The turret was manually rotated and was open, so was not as fast to rotate as other models, and suffered from grenade and mortar attacks. Initially there was no provision for indirect fire, but this was resolved in later models and retrofitted.

Armour Details
Turret
Front57mm@45°(81mm)
Side25mm@75°(97mm)
Rear25mm@(25mm)
Top19mm@90°(19mm)
Superstructure
Front38mm@35°(46mm)
Side19mm@52°(31mm)
Rear19mm@52°(31mm)
Top19mm@90°(19mm)
Hull
Front51mm@34°(62mm)
Side25mm@(25mm)
Rear25mm@(25mm)
Topn/a
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 97 mm - Minimum 0 mm



Weapon Details
Flag
0.5 inch Browning Machine Gun M2 Blank
Calibre12.70mm
Rate of Fire480 rpm
Number of Rounds 300
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
MG(MG)
12.70mm 0.04Kg 884M/Sec
Quoted Penetration 22mm@100m
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.28
Penetration(mm@30°) 7 5
Penetration(mm@0°) 9 6
Hit Probability(%) 98 98


Weapon Details
Flag
3 in Gun M7 L/53 Blank
Calibre76.20mm
LengthL/53
Number of Rounds 50
 
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
AP(AP)
76.20mm 7Kg 792M/Sec
Quoted Penetration 84mm@2000m
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.13 0.26 0.53 1.13 1.8 2.56 3.42 4.42
Penetration(mm@30°) 132 122 112 98 86 74 64 53
Penetration(mm@0°) 153 142 130 114 100 86 74 62
Hit Probability(%) 98 98 98 96 77 44 25 15

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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