1. Displacement was 1,854 long tons (1,884 t) standard and up to 2,519 long tons (2,559 t) under full load.

2. The ships displaced 11,785 metric tons (11,599 long tons) at full load.

3. The normal displacement of the battleships was 42,600 metric tons (41,900 long tons).

4. The ships carried 3,200 tonnes (3,150 long tons) of coal, and were later modified to carry an additional 197 tonnes (194 long tons) of oil that was to be sprayed on the coal to increase its burn rate.

5. Launched in 1920, Omaha (designated C-4 and later CL-4) had a displacement of 7,050 long tons.

6. Before repairs could be begun, about 500 t (490 long tons) of coal had to be unloaded to lighten the ship.

7. Today, males do not usually exceed 18.3 metres (60 ft) in length or 51,000 kilograms (50 long tons; 56 short tons) in weight.

8. The modifications to her hull increased her armor weight from 6,502 to 10,313 long tons, directly violating the terms of the Washington Naval Treaty.

9. On 25 July 1943 the Royal Air Force attacked the Krupp Works with 627 heavy bombers, dropping 2,032 long tons of bombs in an Oboe-marked attack.

10. The biggest took place during the "Christmas Blitz" on the nights of 22/23 and 24 December 1940, when an estimated 474 tonnes (467 long tons) of high explosives plus over 37,000 incendiary bombs were dropped.

11. In October 1994 the company Rockwater AS, together with deep sea divers, drilled holes in 133 fuel tanks and removed 1,000 t (980 long tons; 1,100 short tons) of oil; 47 fuel bunkers were unreachable and may still contain oil.

12. The Bismarck class was a pair of fast battleships built for Nazi Germany's Kriegsmarine shortly before the outbreak of World War II.The ships were the largest and most powerful warships built for the Kriegsmarine; displacing more than 41,000 metric tons (40,000 long tons) normally, they were armed with a battery of eight 38 cm (15 in) guns and were capable of a top speed of 30 knots (56 km/h