The Type 65 is a torpedo manufactured in the Soviet Union and then Russia.
It was developed for use against US Navy aircraft carrier battle groups, as well as large merchant targets such as supertankers and advanced enemy submarines[citation needed].
It is now typically fitted to newer Russian vessels, though often the 650 mm torpedo tube is fitted with a 533 mm converter to enable firing of SS-N-15 missiles or Type 53 torpedoes.
Russian officials have stated that a 65-76A modification of this torpedo is responsible for the 12 August 2000 explosion of the Russian submarine Kursk.
[1][2]