As it sortied from its base in Brunei, Kurita's powerful 'Center Force' consisted of five battleships (Yamato, Musashi, Nagato, Kongō, and Haruna), ten heavy cruisers (Atago, Maya, Takao, Chōkai, Myōkō, Haguro, Kumano, Suzuya, Tone and Chikuma), two light cruisers (Noshiro and Yahagi) and 15 destroyers.
Kurita's ships passed Palawan Island around midnight on 22–23 October. The American submarines Darter and Dace were positioned together on the surface close by. At 00:16 on 23 October, Darter 's radar detected the Japanese formation at a range of 30,000 yd (27,000 m). Her captain promptly made visual contact. The two submarines quickly moved off in pursuit of the ships, while Darter made the first of three contact reports. At least one of these was picked up by a radio operator on Yamato, but Kurita failed to take appropriate antisubmarine precautions.
Darter and Dace traveled on the surface at full power for several hours and gained a position ahead of Kurita's formation, with the intention of making a submerged attack at first light. This attack was unusually successful. At 05:24, Darter fired a spread of six torpedoes, at least four of which hit Kurita's flagship, the heavy cruiser Atago. Ten minutes later, Darter made two hits on Atago 's sister ship, Takao, with another spread of torpedoes. At 05:56, Dace made four torpedo hits on the heavy cruiser Maya (sister to Atago and Takao).
Atago and Maya quickly sank. Takao turned back to Brunei, escorted by two destroyers—and was followed by the two submarines. On 24 October, as the submarines continued to shadow the damaged cruiser, Darter ran aground on the Bombay Shoal. All efforts to get her off failed, and she was abandoned. Her entire crew was, however, rescued by Dace.