Germany 7.5cm Pak 40/3 L/46 Gw 38(t)f Ausf H (Marder III) Ordnance classification - SdKfz 138

Tweet The 7.5cm Pak 40/3 L/46 Gw 38(t)f Ausf H was designed in 1941, manufactured by BMM based on the existing fully tracked Czech LT Vz 38 and was in use from 1942 to 1945. General Details Specifications Operational Date(s) 1942 - 1945 Ordnance classification SdKfz 138 Quantity Produced 417 Weight 10.8 tonne Crew 4 M.G's small 1 M.G's large(>10mm) n/a Length 4.61 mtr Width 2.15 mtr Height 2.51 mtr Engine Details/Performance Max Road Speed 25 mph Max Cross Country Speed 13 mph Range Road 150 miles Range Cross Country 60 miles Fuel Type Petrol Fuel Capacity unknown Horse Power 125 hp Power/Weight 11 hp/tonne General Information The 7.5cm Pak 40/3 L/46 Gw 38(t)f Ausf H was designed in 1941, manufactured by BMM based on the existing fully tracked Czech LT Vz 38 and was in use from 1942 to 1945. The vehicle was powered by Praga 'EPA/2' petrol powerplant producing 125 HP which could drive the vehicle on roads at up to 25 mph with a range of about 150 miles before refuelling. Its cross country performance was good providing a max speed of about 13 mph and a range of about 60 miles. It was armed with 1 light machine gun. Based on a Czech PzKpfw 38(t) chassis, this was a sucessful attempt to mount the effective PaK 40 75mm Ant-Tank gun on a mobile platform. Armour Details Turret Front 15mm @ 25° (17mm) Side 15mm @ 25° (17mm) Rear n/a Top n/a Superstructure Front 50mm @ 15° (52mm) Side 15mm @ 0° (15mm) Rear n/a Top 10mm @ 75° (10mm) Hull Front 50mm @ 15° (52mm) Side 15mm @ 0° (15mm) Rear 15mm @ 16° (16mm) Top 8mm @ 90° (8mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 52 mm - Minimum 8 mm

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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