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Prototype with unarmed temporary turret
Type Light tank
Place of origin Poland
Service history
In service 1937-1939 (prototype)
Production history
Number built 1 (prototype)
Crew 2

4TP, otherwise known as PZInż 140, was a Polish light tank prototype. It was designed by 16 December 1936 by Edward Habich of the Państwowe Zakłady Inżynieryjne works. A light reconnaissance tank, it was to become a heavier replacement for TK-3 and TKS tankettes in Polish service. In addition to light, manoeuvrable chassis, the tank was to feature a turret with one 20 mm nkm wz. 38 FK autocannon and one Ckm wz. 30 machine gun.[1]

Only a single prototype was built. Extensively tested by the army, it proved a reliable vehicle. However, the army decided that by the time serial production could start, the design would already be outdated, and no serial production followed.[1]


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