During the 1930s, the Japanese began production of tankettes and light tanks, which were used heavily in Manchuria and China. The Type 94 tankette weighed 3.4 tonnes and was generally used as either a tractor to tow an ammunition trailer, or as a patrol/reconnaissance tank. With a crew of two men and a single 6.5 mm type 91 machine gun, 823 units of the Type 94 were produced and they saw widespread service as late as 1945. Over twice as large as the Type 94 at (7.4 tonnes), the Type 95 Ha-Go light tank had a complement of three crewmen, a 37 mm gun and the same 6.5 mm type 91 machine gun, and most importantly a diesel engine which would later greatly influence future tank designs in the Soviet Army. Over two-thousand Type 95 tanks were built, and production continued until 1943.