authorities decided to relocate the 330 Sqn. The Akureyri base was immediately ordered to move its aircraft to Reykjavík. Operations of the Catalina had commenced in November and of the Northrops in December. The C-flight continued to operate out of Búðareyri until 11 June 1943. During its period on Iceland the squadron flew 4379 hours, of which 3524 with the Northrops and 855 with Catalinas. Twenty-one soldiers were killed. Scotland The A- and B-flights departed Iceland for RAF Oban in Scotland on 23 January 1943. This involved a switch to the Short Sunderland flying boat. These were expensive aircraft which the Norwegian government-in-exile could not afford. The RAF therefore agreed to lend the aircraft to the squadron, while operating costs were still paid for by the Norwegians. The squadron was set up with six Mk II and six Mk III, the latter having somewhat longer range. There were technical challenges with the Bristol Pegasus engines, which were underpowered and often stopped mid-air. The situation was often aggravated when the feathering malfunctioned. The squadron became operative on 20 April 1943. Three days later a detachment was sent to RAF Scatsta in Shetland. The role continued as before, with submarine sweeping, patrol and reconnaissance, as well as meteorological surveys. They regularly patrolled the areas between Shetland past the Faeroe Islands to Iceland. Also active in the area was the Norwegian 333 Squadron and other RAF squadrons. The Sunderlands would on occasion partake in aerial combat with German fighters. Following the Allied Invasion of Normandy in June 1944, German submarines increasingly moved northwards and the 330 Sqn intensified its sweeping. From August the German tactics changed and the 330 Sqn's patrols moved steadily closer to Norway. During the period in Scotland the squadron flew 12,000 hours, carrying out 655 sweeps and patrols, 50 convoy escorts and 22 search and rescue missions. Five submarines were attacked, sinking one and badly damaging another. No ships escorted by the 330 Sqn were sunk. Six Sunderlands were lost during the war, both due to engine failure and due to enemy action. All but one resulted in loss of life. In April 1945 the Mk II and III Sunderlands were replaced with Mk V, which had more reliable Pratt & Whitney Twin Wasp. At the End of World War II in Europe in May 1945, the 330 Sqn had eleven operational Sunderlands. While the fighter squadrons were without