A Source for KIND HEARTS AND CORONETS
Everyone remembers that sequence when Alec Guinness is Admiral Horatio D'Ascoyne, and manages to cause a naval catastrophe that causes his demise.
If you recall he was at sea, and on maneuvres, when he ordered his flagship to port rather than starboard, causing it to collide with his second ship, and causing both to sink (although only Admiral Lord Horatio dies as a result).
It actually happened on June 22, 1893 off Tripoli, Libya. Vice Admiral Sir George Tryon, the leading strategist in the Victorian navy, was on maneuvres, with the entire Mediterranean Squadron under his command. It was divided in two columns, his led by his flagship, H.M.S. Victoria, and the other by H.M.S. Camperdown (under Rear Admiral Albert Hastings Markham). Tryon ordered the two columns to turn in on each other at less than 3000 cables distance between them.
He always enjoyed novel orders and directions. Unfortunately, the turning cable
(the amount of space needed for one of these 1893 British warships to turn safely around without collision) was 6000 cables. The result was that Markham's ship rammed Tryon's, and sank it. Tryon died. Unfortunately, so did
322 other British seamen. It was less amusing than the movie version (and only one ship sank).