I know this may be pedantic -but you might as well get it right, if you are writing about the Royal Navy.

In the Royal Navy, ships do not have crews, they have ship’s company

Budum bum.

Bismarck

The black and white patched cat had been owned by an unknown crewman of the German battleship Bismarck.[2] He was on board the ship on 18 May 1941 when it set sail on Operation Rheinübung, Bismarck’s first and only mission. Bismarck was sunk after a fierce sea-battle on 27 May, from which only 115 from its crew of over 2,200 survived. Hours later, Oscar was found floating on a board and picked from the water, the only survivor to be rescued by the homeward-bound British destroyer HMS Cossack.[3] Unaware of what his name had been on Bismarck, the crew of Cossack named their new mascot “Oscar”.[3]

HMS Cossack

He served on board Cossack for the next few months as it carried out convoy escort duties in the Mediterranean and north Atlantic. On 24 October 1941, Cossack was escorting a convoy from Gibraltar to the United Kingdom when it was severely damaged by a torpedo fired by the German submarine U-563.[4] Crew were transferred to the destroyer HMS Legion, and an attempt was made to tow the badly listing Cossack back to Gibraltar, but worsening weather conditions meant the task became impossible and had to be abandoned. On 27 October, a day after the tow was slipped, Cossack sank to the west of Gibraltar. The initial explosion had blown off one third of the forward section of the ship, killing 159 of the crew, but Oscar survived this too and was brought to the shore establishment in Gibraltar.[4]

HMS Ark Royal

Now nicknamed “Unsinkable Sam”, he was soon transferred to the aircraft carrier HMS Ark Royal, which ironically had been instrumental in the destruction of Bismarck. However, Sam was to find no more luck there, and when returning from Malta on 14 November 1941, this ship too was torpedoed, this time by the submarine U-81. Attempts were also made to tow the Ark Royal to Gibraltar, but the unstoppable inflow of water made the task a futile one and the carrier eventually rolled over and sank 30 miles from Gibraltar. The slow rate at which the ship sank however meant that all but one of the crew could be saved. The survivors, including Sam, who had been found clinging to a floating plank by a motor launch,[5] and described as “angry but quite unharmed”[6] were transferred to HMS Lightning and the same HMS Legion which had rescued the crew of Cossack. Legion would itself be sunk in 1942, and Lightning in 1943.

The more you know!