The Andrea Doria sank after the merchant ship she spotted from miles away also assumed she would alter course.
A USN cruiser, USS Belknap was virtually stripped from the deck up colliding with an aircraft carrier, and in WW2 a british cruiser was cut in half by the Queen Mary.
My 'sea daddy' BMC Lonnie white taught me " always give anything big enough to sink you TWICE the manuevering room you think it needs and add 10% to that."