Convoy RA 55A was an Arctic convoy during World War II. It was one of a series of convoys run to return Allied ships from Soviet northern ports to ports in Britain. It sailed in late December 1943, reaching British ports at the end of the month. All ships arrived safely.
RA 55A consisted of 23 merchant ships which departed from Kola Inlet on 22 December 1943. Close escort was provided by the two destroyers, Westcott and Beagle, a minesweeper and three corvettes. There was also an Ocean escort, comprising the destroyer Milne (Capt. IMR Campbell commanding) and seven other Home Fleet destroyers. A cruiser cover force comprising Belfast (V.Adm R Burnett commanding), Norfolk, and Sheffield also followed the convoy from Murmansk, to guard against attack by surface units. Distant cover would be provided by a Heavy Cover Force comprising the battleship Duke of York, the cruiser Jamaica and four destroyers under the command of V Adm. Bruce Fraser, which at the time of RA 55A’s departure was trailing the Murmansk-bound convoy JW 55B.
RA 55A was threatened by a U-boat force of eight boats in a patrol line, code-named Eisenbart, in the Norwegian Sea, and a surface force comprising the battleship Scharnhorst and five destroyers was also available, stationed at Altenfjord.