Talk:Combat/@comment-175.156.176.148-20131226030049/@comment-24161900-20131226031716

Only when your ship is on red health and you either continue the sortie or go into night battle. There have been unconfirmed rumors of ships sinking with orange health because of low fatigue, but this hasn't been documented very well.

Personally, i've never had a ship sink in night battle after being red, done it many times and haven't had it happen yet (risked levle 98 KTKM and 90 kaga in this event to it, lul), but many people say they've had it happen to them, so do so at your own risk.