Germany
Sturmpanzer IV 15cm StuH 43 SdKfz 166 (Brummbär)
Ordnance classification - SdKfz 166

Tweet The Sturmpanzer IV 15cm StuH 43 SdKfz 166 was designed in 1942, manufactured by Vienna Arsenal based on the existing fully tracked PzKpfw IV and was in use from 1943 to 1945. General Details Specifications Operational Date(s) 1943 - 1945 Ordnance classification SdKfz 166 Quantity Produced 298 Weight unknown Crew 4 M.G's small 2 M.G's large(>10mm) n/a Length 5.97 mtr Width 2.86 mtr Height 2.54 mtr Engine Details/Performance Max Road Speed 25 mph Max Cross Country Speed 10 mph Range Road 131 miles Range Cross Country 52 miles Fuel Type Petrol Fuel Capacity unknown Horse Power 300 hp Power/Weight unknown General Information The Sturmpanzer IV 15cm StuH 43 SdKfz 166 was designed in 1942, manufactured by Vienna Arsenal based on the existing fully tracked PzKpfw IV and was in use from 1943 to 1945. It was armed with 2 light machine guns. Its main armament consisted of a 15cm StuH 43 which could penetrate 75 mm of flat plate at 800 metres This vehicle was a modified Panzer IV armed with a short 150mm gun that fired the standard sIG 33 shells. Armour Details Turret Front n/a Side n/a Rear n/a Top n/a Superstructure Front 100mm @ 40° (131mm) Side 50mm @ 15° (52mm) Rear 30mm @ 25° (33mm) Top 20mm @ 83° (20mm) Hull Front 80mm @ 12° (82mm) Side 30mm @ 0° (30mm) Rear 20mm @ 10° (20mm) Top 10mm @ 90° (10mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 131 mm - Minimum 10 mm Weapon Details 15cm StuH 43 15cm Sturmhaubitze 43 (translates as Assault Howitzer) History Designed by Skoda for the Brummbär this was an infantry support howitzer. Manufacturer Skoda Calibre 150mm Length L/12 Rate of Fire 2rpm   Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content 15cm I Gr 33 (HE High Explosive) 150mm 38Kg 240M/Sec 8.300Kg explosive Maximum Range not shown as gun elevation is limited Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.42 0.84 1.71 3.52 5.44 7.46 9.62 11.91 Direct Fire Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.42 0.84 1.71 3.52 5.44 7.46 9.62 11.91 Hit Probability(%) 98 98 77 22 6 2 1 0 Blast/Fragmentation Effects Burst radius Infantry in open 99% kill 6 mtr Burst radius Infantry in open 66% kill 12 mtr Burst radius Infantry in open 33% kill 30 mtr  Armour Penetration inc roof at 2 mtr 24 mm An explosion within 6 mtr of infantry in the open will cause 99% casualties - lethal. An explosion within 12 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 30 mtr of infantry in the open will cause 33% casualties. The blast effect of this shell exploding within 2 mtr of an armoured vehicle will penetrate 24 mm of the tank armour including the roof. 15cm I Gr 39 Hl/A (HEAT High Explosive Anti-Tank) 150mm 25Kg 240M/Sec Quoted Penetration 160mm @ 500mtr/0° Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.42 0.84 1.71 3.52 Penetration(mm@30°) 160 160 160 160 Penetration(mm@0°) 160 160 160 160 Hit Probability(%) 98 98 77 22

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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