Sweden
Strv m/39

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The Strv m/39 based on the existing Light Tank and was in use from 1940.

General Details Specifications Operational Date(s) 1940 Ordnance classification Quantity Produced 0 Weight unknown Crew 3 M.G's small 2 M.G's large(>10mm) n/a Length 4.65 mtr Width 2.03 mtr Height 2.08 mtr Engine Details/Performance Max Road Speed 28 mph Max Cross Country Speed unknown Range Road 0 miles Range Cross Country unknown Fuel Type Unknown Fuel Capacity unknown Horse Power 0 hp Power/Weight unknown General Information The Strv m/39 based on the existing Light Tank and was in use from 1940. It was armed with 2 light machine guns. Its main armament consisted of a 37mm Bofors L/45 which could penetrate 48 mm of flat plate at 200 metres 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 37mm Bofors L/45 Calibre 37mm Length L/45   Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content 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

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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