The original intention of the US authorities had been to hand over the warship to the exiled Norwegians on 3 August 1942, on the 70th birthday of King Haakon VII. This plan could however not be carried out as Crown Princess Märtha was going spend that day with her stepfather the King in London and the handover date was postponed.
During the handover ceremony Roosevelt delivered his famous "Look to Norway" - speech.
King Haakon VII was formerly part of the U.S. Navy as USS PC 467. The ship was built in Neponset, Massachusetts where she was launched on 29 April 1942.