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Germany
StuG III Ausf F 7.5cm Stu.K. L/43 (Stug III)
Ordnance classification - SdKfz 142/1

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The StuG III Ausf F 7.5cm Stu.K. L/43 was designed in 1941, manufactured by Alkett based on the existing fully tracked PzKpfw III and was in use from 1942 to 1945.

Photo of StuG III Ausf F 7.5cm Stu.K. L/43  (Stug III)
StuG III Ausf F 7.5cm Stu.K. L/43 (Stug III) scale illustration

General Details
Specifications
Operational Date(s)1942 - 1945
Ordnance classificationSdKfz 142/1
Quantity Produced693
Weight23.2 tonne
Crew4
M.G's small1
M.G's large(>10mm)n/a
Length5.54 mtr
Width2.92 mtr
Height2.15 mtr
Engine Details/Performance
Max Road Speed25 mph
Max Cross Country Speed13 mph
Range Road88 miles
Range Cross Country35 miles
Fuel TypePetrol
Fuel Capacityunknown
Horse Power300 hp
Power/Weight12 hp/tonne
General Information
The StuG III Ausf F 7.5cm Stu.K. L/43 was designed in 1941, manufactured by Alkett based on the existing fully tracked PzKpfw III and was in use from 1942 to 1945.

The vehicle was powered by Maybach 'HL120 TRM' petrol powerplant producing 300 HP which could drive the vehicle on roads at up to 25 mph with a range of about 88 miles before refuelling. Its cross country performance was good providing a max speed of about 13 mph and a range of about 35 miles.

It was armed with 1 light machine gun. Its main armament consisted of a 7.5cm StuK 39/40 L/43 which could penetrate 105 mm of flat plate at 800 metres

Designed as an infantry support vehicle in 1936, it was to utilise the PzKpfw III chassis in a vehicle with a very low profile.

Armour Details
Turret
Frontn/a
Siden/a
Rearn/a
Topn/a
Superstructure
Front80mm@10°(81mm)
Side30mm@10°(30mm)
Rear30mm@30°(35mm)
Top11mm@83°(11mm)
Hull
Front80mm@21°(86mm)
Side30mm@(30mm)
Rear30mm@30°(35mm)
Top16mm@90°(16mm)
Armour (x)mm @ (y)° (Effective mm @ 0°)
Effective Armour - Maximum 86 mm - Minimum 16 mm



Weapon Details
Flag
7.5cm StuK 39/40 L/43 Blank
Calibre75mm
LengthL/43
 
Ammunition Details
Name/Id Calibre Weight MVelocity Explosive Content
7.5cm Pzgr 39 L/43(AP)
75mm 6.8Kg 740M/Sec
Quoted Penetration 91mm @ 500mtr/30° ( ≈ 105mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.14 0.28 0.57 1.21 1.93 2.75 3.69 4.77
Penetration(mm@30°) 122 113 103 90 78 68 58 48
Penetration(mm@0°) 141 131 119 105 91 79 67 56
Hit Probability(%) 98 98 98 93 69 39 22 8


 
7.5cm Pzgr 40(AP40)
75mm 4.1Kg 920M/Sec
Quoted Penetration 115mm @ 500mtr/30° ( ≈ 132mm/0°)
Range(Mtr)1002004008001200160020002400
Flight Time(Secs) 0.11 0.23 0.47 1.02 1.67 2.45 3.42 4.63
Penetration(mm@30°) 151 138 123 105 88 72 58 45
Penetration(mm@0°) 175 160 143 122 102 84 68 53
Hit Probability(%) 98 98 98 98 81 48 25 8



7.5 cm Sprgr.34(HE)
75mm 4.42Kg 550M/Sec 0.454Kg explosive
Range(Mtr)10002000300040005000600070008000
Flight Time(Secs) 2.1 4.96 9.09 15.59 27.28 54.57
Burst radius Infantry in open 99% kill3 mtr Burst radius Infantry in open 66% kill6 mtr
Burst radius Infantry in open 33% kill16 mtr  Armour Penetration inc roof at 1 mtr1 mm
An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal.
An explosion within 6 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's.
An explosion within 16 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 penetrate 1 mm of the tank armour including the roof.

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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