No. 1483 (Bomber) Gunnery Flight, Royal Air Force, 1942 to 1944 (formerly No. 1483 (Target Towing and Gunnery) Flight, 1941-42; became No. 1688 Bomber (Defence) Training Flight): a Wellington lost its wing near Marham on 30 March 1943 (Wikipedia, List of Royal Air Force aircraft independent flights).