The SO-KI Twin 20mm Anti-Aircraft was an used by the japanese between 1938 and 1945. The vehicle was manned by a crew of 3 and was 2.14 metres wide, 4.14 metres long, 1.83 metres high and weighed 7.2 tonnes. Powered by a hp petrol engine the SO-KI Twin 20mm Anti-Aircraft was capable of a road speed of 25mph . Based on the all chassis, the vehicle was armed with a 2 x 20mm AA with a muzzle velocity of 0m/sec which was capable of penetrating 0mm of armour at 800metres

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