During the Second World War she played an important role in the Malta Convoys and in Pacific operations.

From 24 to 30 September 1941 Brown Ranger was deployed as part of Force S in Operation Halberd, refuelling the ships of convoy WS 11X, en route from the Clyde to Malta via Gibraltar.

On 11 June 1942 she was part of Force Y in Operation Harpoon, supplying the escorts of convoy WS 19Z.

[1] She also saw service during the Korean War, from 25 June 1950 to 27 July 1953, along with 18 other Royal Fleet Auxiliary vessels and was awarded the battle honour Korea 1950–52.

This article about a specific naval auxiliary ship or boat of the United Kingdom is a stub.