MADEX 2017: South Korea Developing a Supercavitating Torpedo Saturday 11 November 2017 Army, Defence, Military, News, World At MADEX 2017, the International Maritime Defense Industry Exhibition held in October 2017 in Busan, South Korea's Agency for Defense Development (ADD) stand was featuring a "supercavitating underwater test vehicle". Read More Read More Tweet Subscribe to receive free email updates: