Yu-3 (Zhonghua Xun) torpedo.
Category. Data.
Type. Conventional Cold War torpedo.
Nationality. Chinese.
Made in. planned for 1964, initial trials in 1969, 1972 and 1974; test model 1977 and officially made in 1983.
Retired. Still in use.
Designer. Yunnan National Defense Office.
Manufacturer. Yunnan National Defense Office, Acoustic Research Institute of the Chinese Academy of Science and 705th Institute; and the Dawn Machinery Factory (Shuguan Jixie Chang, 曙光机械厂) of the Yunnan 6th Machinery Bureau.
Variants. 4, a ASuW and a ASW torpedo, plus their exports versions.
Diameter. 533 mm.
Speed. 35 kt.
Warhead. 205kg of N\A conventional explosives.
Operational range. 13 km.
Guidance system. Active/passive acoustic homing.
Launch platform. Submarines.
Weight. N\A, but probably akin to similar ones of the same role, configuration and era.
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There are several sources that state that it may be a copy of the Soviet SET-65E, although this seems unlikely given the political climate, as development began in 1965 and thus just after the Sino-Soviet split had occurred.

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