"Royal Air Force- Operations by the Photographic Reconnaissance Units, 1939-1945." Wing Commander J R H Merifield (pilot) and Flight Lieutenant J H Spires (navigator) in De Havilland Mosquito PR Mark 34, RG241 'K', of No. 540 Squadron RAF, taxy to the main runway at St Mawgan, Cornwall, before taking off on the fastest recorded east to west crossing of the Atlantic at that time. They landed at Gander, Newfoundland 7 hours and 2 minutes later. The return flight, on 23 October, was accomplished in 5 hours 10 minutes, a record which still stands for a twin piston-engined aircraft crossing the Atlantic.