Modification
Several modifications have been incorporated to Yu-3 torpedo. One of the important upgrade was to incorporating ASuW capability to Yu-3 torpedo so that the submarines would no longer need to carry separate ASuW and ASW torpedoes. In May 1985, Dawn Machinery Factory (Shuguan Jixie Chang, 曙光机械厂), 750 Test Range and 705th Research Institute jointly developed an export version as Chinese sturgeon (中华鲟)-II, with export designation as ET32, but there was no known export. Other modifications included updating electronics and incorporating the capability of being launched from different platforms and being used as part of the CAPTOR mine type mine system
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