Radar let USS Sealion detect Yamato, Nagato, Kongō, the light cruiser Yahagi, and their destroyer screen moving at sixteen knots without zigzagging. Sealion used its roughly twenty-knot surfaced speed to overtake the formation and, after more than two hours of positioning, fired six torpedoes at Kongō and three at Nagato. Three struck Kongō while Nagato evaded. While the escorts searched east, Sealion turned west, reloaded, and resumed tracking. Kongō initially retained speed but later detached, lost power, developed an extreme list, and suffered a 14-inch magazine explosion. Evasive maneuvering was a practical anti-submarine defense, while three concentrated torpedo hits proved destructive even against a modernized capital ship.
Chapter · 37:44-43:21
USS Sealion's radar pursuit and the sinking of Kongō
Sealion exploits a straight-running Japanese formation, lands three torpedo hits on Kongō, and tracks the damaged ship until her magazine explodes.