Germany 10.5cm Flak 38/39 10.5cm Flugabwehrkanone 38/39 (translates as Anti Aircraft Gun)

Showing the details of the shells used(where known)   Tweet Weapon Details 10.5cm Flak 38/39 10.5cm Flugabwehrkanone 38/39 (translates as Anti Aircraft Gun) History An effective static weapon as it weight 13.8 tons and took 20 minutes to get ready to fire, but as this was usually used in static firing positions or railway mounted it was not an issue Manufacturer Rheinmetal Manufactured 1938 - 1945 Calibre 105mm Length L/53 Rate of Fire 18 rpm   10.5 Pz Sprgr Patr Flak (AP Armor Piercing) 105mm 15.45Kg 860M/Sec Quoted Penetration 140mm @ 1000mtr/30° ( ≈ 161mm/0°) Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.12 0.24 0.48 1.01 1.58 2.19 2.87 3.62 Penetration(mm@30°) 162 151 139 124 110 96 84 73 Penetration(mm@0°) 188 175 161 144 128 112 98 85 Hit Probability(%) 98 98 98 98 85 60 34 22 10.5 Sprgr L/4.4 (HE High Explosive) 105mm 14.8Kg 880M/Sec 1.500Kg explosive Maximum Range 11400 Mtr Range(Mtr) 1000 2000 3000 4000 5000 6000 7000 8000 Flight Time(Secs) 1.26 2.81 4.77 7.34 10.85 15.91 23.87 38.19 Direct Fire Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.11 0.23 0.47 0.98 1.54 2.15 2.81 3.54 Hit Probability(%) 98 98 98 98 85 60 34 22 Blast/Fragmentation Effects Burst radius Infantry in open 99% kill 3 mtr Burst radius Infantry in open 66% kill 7 mtr Burst radius Infantry in open 33% kill 19 mtr  Armour Penetration inc roof at 1 mtr 4 mm An explosion within 3 mtr of infantry in the open will cause 99% casualties - lethal. An explosion within 7 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 19 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 4 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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