Britain Ordnance Q.F. 37mm Mk 1

Showing the details of the shells used(where known)   Tweet Weapon Details Ordnance Q.F. 37mm Mk 1 (Anti Aircraft) History Used both as an Anti Tank gun and as a Tank gun the 2pdr was first used by the Belgians in 1939 and the majority of the British guns were captured by the Germans at Dunkirk and given their designation of 4.0 cm Pak 192(e) or 4.0 cm Pak 154(b). Manufactured 1936 - 1944 Calibre 37mm Length L/52 Rate of Fire 22 rpm   37 mm sk ptr m/34 slpprj m/38 (AP Armor Piercing) 37mm 0.74Kg 785M/Sec Quoted Penetration 40mm @ 400mtr/30° ( ≈ 46mm/0°) Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.27 0.57 1.3 2.27 3.6 5.55 8.73 Penetration(mm@30°) 46 41 36 29 22 17 12 7 Penetration(mm@0°) 54 48 42 34 26 20 14 9 Hit Probability(%) 98 98 98 93 57 22 3 1 37 mm sk ptr m/34 sgr m/43 (HE High Explosive) 37mm 0.68Kg 805M/Sec 0.210Kg explosive Range(Mtr) 1000 2000 3000 4000 5000 6000 7000 8000 Flight Time(Secs) 1.7 5.42 Direct Fire Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.26 0.56 1.27 2.21 3.51 5.42 8.5 Hit Probability(%) 98 98 98 93 57 22 6 2 Blast/Fragmentation Effects Burst radius Infantry in open 99% kill 4 mtr Burst radius Infantry in open 66% kill 8 mtr Burst radius Infantry in open 33% kill 20 mtr  Armour Penetration inc roof at 1 mtr 0 mm An explosion within 4 mtr of infantry in the open will cause 99% casualties - lethal. An explosion within 8 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 20 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. 37 mm sk ptr m/34 slpgr m/39 (HEAT High Explosive Anti-Tank) 37mm 0.74Kg 775M/Sec Quoted Penetration 39mm @ 100mtr/30° ( ≈ 45mm/0°) Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.27 0.58 1.32 2.29 3.64 Penetration(mm@30°) 39 Penetration(mm@0°) 39 Hit Probability(%) 98 98 98 90 57 22 Vehicles in our database using this gun Vehicle Name Common Name   M3 Grant Grant         Vickers Mk IIA.C.S

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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