Germany 3.7cm Flak36 auf Fahrgestell Zugkraftwagen 5t Ordnance classification - Sdkfz 6/2

General Details Specifications Operational Date(s) 1943 - 1945 Ordnance classification Sdkfz 6/2 Quantity Produced 339 Weight unknown Crew 7 M.G's small n/a M.G's large(>10mm) n/a Length 6.33 mtr Width 2.26 mtr Height 2.98 mtr Engine Details/Performance Max Road Speed 31 mph Max Cross Country Speed unknown Range Road 198 miles Range Cross Country unknown Fuel Type Petrol Fuel Capacity unknown Horse Power 115 hp Power/Weight unknown General Information Armour Details Turret Front n/a Side n/a Rear n/a Top n/a Superstructure Front n/a Side n/a Rear n/a Top n/a Hull Front n/a Side n/a Rear n/a Top n/a Armour (x)mm @ (y)° (Effective mm @ 0°) Weapon Details 3.7cm Flak 36/37 3.7cm Flugabwehrkanone 36/37 (translates as Anti Aircraft Gun) History Redesign of the 3.7cm Flak 18 to reduce overall weight and portability. Manufacturer Rheinmetal Manufactured 1936 - 1945 Calibre 37mm Length L/85 Rate of Fire 820 rpm   Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content 3.7cm Pzgr Patr 18(AP) 37mm 0.68Kg 762M/Sec Quoted Penetration 31mm @ 500mtr/30° ( ≈ 35mm/0°) Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.28 0.59 1.34 2.33 3.7 5.71 8.97 Penetration(mm@30°) 41 38 32 25 20 15 11 6 Penetration(mm@0°) 48 44 38 30 24 18 13 8 Hit Probability(%) 98 98 98 90 54 22 3 1 3.7cm Sprgr Patr 18(HE) 37mm 0.64Kg 820M/Sec ≈0.095Kg explosive Maximum Range 6000 Mtr Range(Mtr) 1000 2000 3000 4000 5000 6000 7000 8000 Flight Time(Secs) 1.68 5.31 19.44 Burst radius Infantry in open 99% kill 2 mtr Burst radius Infantry in open 66% kill 5 mtr Burst radius Infantry in open 33% kill 13 mtr  Armour Penetration inc roof at 1 mtr 0 mm An explosion within 2 mtr of infantry in the open will cause 99% casualties - lethal. An explosion within 5 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 13 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 not cause any significant armour damage.

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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