USSR
T-40S

Tweet The T-40S based on the existing Light Tank and was in use from 1940. General Details Specifications Operational Date(s) 1940 Ordnance classification Quantity Produced 200 Weight unknown Crew 2 M.G's small 1 M.G's large(>10mm) n/a Length 4.31 mtr Width 2.35 mtr Height 1.99 mtr Engine Details/Performance Max Road Speed 26 mph Max Cross Country Speed 17 mph Range Road 210 miles Range Cross Country 100 miles Fuel Type Unknown Fuel Capacity 45 gal Horse Power 85 hp Power/Weight unknown General Information The T-40S based on the existing Light Tank and was in use from 1940. It was armed with 1 light machine gun. Its main armament consisted of a 20mm ShVAK automatic cannon which could penetrate 10 mm of flat plate at 200 metres Armour Details Turret Front 14mm @ 30° (16mm) Side 10mm @ 10° (10mm) Rear 7mm @ 0° (7mm) Top 7mm @ 90° (7mm) Superstructure Front 14mm @ 30° (16mm) Side 13mm @ 0° (13mm) Rear 13mm @ 0° (13mm) Top 10mm @ 90° (10mm) Hull Front 13mm @ 30° (15mm) Side 13mm @ 0° (13mm) Rear 9mm @ 0° (9mm) Top 10mm @ 90° (10mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 16 mm - Minimum 10 mm Weapon Details 20mm ShVAK automatic cannon History Designed as an aircraft cannon was installed on the T-38 and T-60 light tanks Calibre 20mm Length L/62   Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content 20mm AP (AP Armor Piercing) 20mm 0.099Kg 750M/Sec Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.14 0.3 0.67 Penetration(mm@30°) 10 8 6 Penetration(mm@0°) 12 10 7 Hit Probability(%) 98 98 98 20mm HE (HE High Explosive) 20mm 0.096Kg 770M/Sec 0.007Kg explosive Range(Mtr) 1000 2000 3000 4000 5000 6000 7000 8000 Flight Time(Secs) Direct Fire Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.14 0.29 0.65 1.75 3.97 Hit Probability(%) 98 98 98 77 22 0 Blast/Fragmentation Effects Burst radius Infantry in open 99% kill 0 mtr Burst radius Infantry in open 66% kill 0 mtr Burst radius Infantry in open 33% kill 1 mtr  Armour Penetration inc roof at 1 mtr 0 mm An explosion within 0 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 1 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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Page Last Updated: 2023-04-08 07:03:33