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Germany
7.5cm Pak 40/2 Gw II(A,B,C,F) (Marder II)
Ordnance classification - SdKfz 131
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| The 7.5cm Pak 40/2 Gw II(A,B,C,F) was designed in 1941, manufactured by FAMO, MAN and Daimler Benz based on the existing fully tracked PzKpfw II and was in use from 1942 to 1945. |
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| | Specifications | | Operational Date(s) | 1942 - 1945 | | Ordnance classification | SdKfz 131 | | Quantity Produced | 75 | | Weight | 10.8 tonne | | Crew | 3 | | M.G's small | 1 | | M.G's large(>10mm) | n/a | | Length | 4.81 mtr | | Width | 2.22 mtr | | Height | 1.99 mtr | | Engine Details/Performance | | Max Road Speed | 25 mph | | Max Cross Country Speed | 12 mph | | Range Road | 119 miles | | Range Cross Country | 47 miles | | Fuel Type | Petrol | | Fuel Capacity | unknown | | Horse Power | 140 hp | | Power/Weight | 12 hp/tonne | | | General Information | The 7.5cm Pak 40/2 Gw II(A,B,C,F) was designed in 1941, manufactured by FAMO, MAN and Daimler Benz based on the existing fully tracked PzKpfw II and was in use from 1942 to 1945.
The vehicle was powered by Maybach 'HL62TRM' petrol powerplant producing 140 HP which could drive the vehicle on roads at up to 25 mph with a range of about 119 miles before refuelling. Its cross country performance was good providing a max speed of about 12 mph and a range of about 47 miles.
It was armed with 1 light machine gun. Its main armament consisted of a 7.5cm Pak 40 L/46 which could penetrate 112 mm of flat plate at 800 metres
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| | Turret | | Front | n/a | | Side | n/a | | Rear | n/a | | Top | n/a |
| | Superstructure | | Front | | 30mm | @ | 10° | (30mm) | | Side | | 10mm | @ | 8° | (10mm) | | Rear | | 10mm | @ | 0° | (10mm) | | Top | | 10mm | @ | 90° | (10mm) |
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| Hull | | Front | | 35mm | @ | 13° | (36mm) | | Side | | 15mm | @ | 0° | (15mm) | | Rear | | 15mm | @ | 7° | (15mm) | | Top | | 5mm | @ | 90° | (5mm) |
| | Armour (x)mm @ (y)° (Effective mm @ 0°) | | Effective Armour - Maximum 36 mm - Minimum 5 mm |
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| Weapon Details |
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7.5cm Pak 40 L/46
7.5cm Panzerabwehrkanone 40 L/46
(translates as Anti Tank Gun) |
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| | History | |
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| | This was an enlarged 5cm Pak 38 so looks very similar, but with improved performance especially against the Russian T34 |
| | Manufacturer | Rheinmetal-Borsig |
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| | Manufactured | 1941 - 1945 |
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| | Calibre | 75mm |
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| | Length | L/46 |
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| | Rate of Fire | 14 rpm |
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| | Number of Rounds | 30
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| Ammunition Details |
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| Name/Id |
Calibre Weight MVelocity |
Explosive Content |
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7.5cm Pzgr 39 L/48
(AP Armor Piercing)
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75mm 6.8Kg 792M/Sec | |
| Quoted Penetration 96mm @ 500mtr/30° ( ≈ 110mm/0°) |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.13 |
0.26 |
0.53 |
1.13 |
1.8 |
2.57 |
3.44 |
4.46 |
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| Penetration(mm@30°) |
130 |
121 |
110 |
96 |
84 |
72 |
62 |
51 |
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| Penetration(mm@0°) |
151 |
140 |
128 |
112 |
98 |
84 |
72 |
60 |
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| Hit Probability(%) |
98 |
98 |
98 |
96 |
77 |
44 |
25 |
15 |
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7.5cm Pzgr 40
(AP40 Armour Piercing Tungsten Cored)
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75mm 4.1Kg 920M/Sec | |
| Quoted Penetration 115mm @ 500mtr/30° ( ≈ 132mm/0°) |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.11 |
0.23 |
0.47 |
1.02 |
1.67 |
2.45 |
3.42 |
4.63 |
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| Penetration(mm@30°) |
151 |
138 |
123 |
105 |
88 |
72 |
58 |
45 |
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| Penetration(mm@0°) |
175 |
160 |
143 |
122 |
102 |
84 |
68 |
53 |
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| Hit Probability(%) |
98 |
98 |
98 |
98 |
81 |
48 |
25 |
8 |
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7.5cm Sprgr 34
(HE High Explosive)
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75mm 5.8Kg 548M/Sec | 0.640Kg explosive |
| Maximum Range not shown as gun elevation is limited |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.18 |
0.38 |
0.77 |
1.63 |
2.61 |
3.71 |
4.98 |
6.44 |
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| Direct Fire |
| Range(Mtr) | 100 | 200 | 400 | 800 | 1200 | 1600 | 2000 | 2400 |
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| Flight Time(Secs) |
0.18 |
0.38 |
0.77 |
1.63 |
2.61 |
3.71 |
4.98 |
6.44 |
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| Hit Probability(%) |
98 |
98 |
98 |
81 |
41 |
22 |
8 |
3 |
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| Blast/Fragmentation Effects |
| Burst radius Infantry in open 99% kill | 3 mtr |
Burst radius Infantry in open 66% kill | 6 mtr |
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| Burst radius Infantry in open 33% kill | 17 mtr |
Armour Penetration inc roof at 1 mtr | 1 mm |
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| 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 17 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. |
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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
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![photo of 7.5cm Pak 40 L/46 from Wikipedia](javascript:launch("https://upload.wikimedia.org/wikipedia/commons/thumb/7/75/Pak40_cfb_borden_2006_2.jpg/1920px-Pak40_cfb_borden_2006_2.jpg"))
