Chung Sang Eo

K745 Chung Sang Eo (Blue Shark) torpedo (Hangul: 청상어 어뢰) is a light anti-submarine torpedo developed by the Republic of Korea Navy in 2004. The Blue Shark torpedo can be deployed from surface ships, ASW helicopters and maritime patrol aircraft. Production cost for each torpedo is at about ₩ 1,000,000,000.

K745 Chung Sang Eo (Blue Shark) torpedoes is fitted to Incheon Class (FFX) frigate.