The Light Tank T9E1 (M22 Locust), it was based on the Light Tank chassis and was in use from 1944. It was commonly called a M22 Locust. General Details (Light Tank) Specifications Operational Date(s) 1944 Ordnance classification T9E1 Quantity Produced 830 Weight unknown Crew 3 M.G's small 1 M.G's large(>10mm) n/a Length 3.97 mtr Width 2.25 mtr Height 1.74 mtr Engine Details/Performance Max Road Speed 40 mph Max Cross Country Speed 30 mph Range Road 135 miles Range Cross Country unknown Fuel Type Petrol Fuel Capacity 55 gal Horse Power 162 hp Power/Weight unknown General Information The Light Tank T9E1 (M22 Locust), it was based on the Light Tank chassis and was in use from 1944. It was commonly called a M22 Locust. It was armed with 1 light machine gun. Its main armament consisted of a 37mm Antitank Gun M3 weighing 0.730 kg and with a maximum range of 3,000 metres. Armour Details Turret Front 25mm @ 45° (35mm) Side 25mm @ 0° (25mm) Rear 25mm @ 0° (25mm) Top 18mm @ 90° (18mm) Superstructure Front 25mm @ 45° (35mm) Side 18mm @ 0° (18mm) Rear 12mm @ 0° (12mm) Top 8mm @ 90° (8mm) Hull Front 25mm @ 45° (35mm) Side 18mm @ 0° (18mm) Rear 12mm @ 0° (12mm) Top 8mm @ 90° (8mm) Armour (x)mm @ (y)° (Effective mm @ 0°) Effective Armour - Maximum 35 mm - Minimum 8 mm Weapon Details 37mm Antitank Gun M3 (Anti Tank Gun) History Used against the Japanese in the Phillipines in 1941, and proved effective, however when used in the North Africa Campaign the shells bounced off the German medium tanks. This gun was also used in a number of American Tanks. Manufacturer Watervliet Arsenal, Manufactured 1940 - 1944 Calibre 37mm Rate of Fire 25 rpm Ammunition Details Name/Id Calibre Weight MVelocity Explosive Content AP M74 Shot (AP Armor Piercing) 37mm 0.86Kg 885M/Sec Quoted Penetration 36mm @ 500mtr/0° Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.12 0.23 0.49 1.04 1.65 2.32 3.05 3.83 Penetration(mm@30°) 60 57 51 42 34 27 22 18 Penetration(mm@0°) 70 67 60 49 39 32 26 21 Hit Probability(%) 79 79 79 71 55 44 20 12 HE M63 Shell (HE High Explosive) 37mm 0.73Kg 792M/Sec 0.039Kg explosive Maximum Range not shown as gun elevation is limited Range(Mtr) 100 200 400 800 1200 1600 2000 2400 Flight Time(Secs) 0.13 0.26 0.55 1.17 1.88 2.65 3.5 4.4 lateral dispersion means the side to side variation of the shell from the aiming point 50%(CEP) of shells land within +/- (mtr) 0.12 0.12 0.12 0.21 0.32 0.43 0.53 0.64 80% of shells land within +/- (mtr) 0.15 0.15 0.15 0.27 0.41 0.55 0.68 0.82 95% of shells land within +/- (mtr) 0.24 0.24 0.24 0.41 0.63 0.84 1.04 1.25 range dispersion means the back to front variation of the shell from the aiming point 50%(CEP) of shells land within +/- (mtr) 0.15 0.15 0.15 0.27 0.40 0.53 0.67 0.80 80% of shells land within +/- (mtr) 0.19 0.19 0.19 0.35 0.51 0.68 0.86 1.02 95% of shells land within +/- (mtr) 0.29 0.29 0.29 0.53 0.78 1.04 1.31 1.57 Direct Fire Range(Mtr) 100 200 400 800 1200 1600 2000 Flight Time(Secs) 0.13 0.27 0.56 1.23 1.99 2.84 3.77 Hit Probability(%) 79 79 76 71 55 30 12 Blast/Fragmentation Effects Burst radius Infantry in open 99% kill 0 mtr Burst radius Infantry in open 66% kill 1 mtr Burst radius Infantry in open 33% kill 3 mtr  Armour Penetration inc roof at 1 mtr 0 mm An explosion within 1 mtr of infantry in the open will cause > 66% casualties and could damage some AFV's. An explosion within 3 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. About Penetration Figures All penetration figures in this database are calculated to a common standard based on German WWII testing criteria (complete penetration with functioning fuze). This allows direct comparison between all nations' guns. Original national test figures would be higher for some nations due to different criteria: German: 1.00? (baseline - strictest) British: 1.02? (slightly looser) American: 1.05? (50% mass through plate) Soviet: 1.10? (75% mass through plate) For example, a Soviet gun showing 159mm here would be published as ~175mm in Soviet documents, and a German gun showing 120mm would be published as 120mm in German documents. The 159mm figure is directly comparable to the German 120mm - the Soviet gun really was more powerful. National Testing Standards German: 1.00? - Complete penetration, fuze functions (strictest) British: 1.02? - Complete penetration American: 1.05? - 50% of shell mass through plate Soviet: 1.10? - 75% of shell mass through plate All database figures are normalized to German standard for direct comparison. Multiply by the factor above to see original national test figures.

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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