>>900 たとえ速度で勝っていても1時間ごとに強制離脱の成否判定があって逃げられるみたいですね http://www.hoi4wiki.com/Naval_warfare#Naval_Battle Although even when disengaging ship would not be able to escape based on its speed alone, it still has a chance to leave combat each hour, and takes about 12 hours on average to do it.