The sick and the older sailors aboard Yamato were disembarked at Mitajiri anchorage in Japan before the battleship departed for Operation Ten-Go. She passed through the Bungo Channel between Shikoku and Kyushu at 1830 hours, sailing west and then turning south at 2100 hours to avoid American submarine USS Threadfin. Meanwhile, USS Threadfin continued to follow Yamato's position though unable to attack Tabular Record of Movement
