 The USAAF Ninth Air Force transferred two P-61 Black Widow night interceptor squadrons to Scorton from RAF Charmy Down near Bath in Somerset to train and fly with the RAF night fighter Operational Training Unit assigned there.Initially flying de Havilland Mosquitoes, their first P-61 arrived at Scorton in May 1944 and their first assignment was to chase night-flying V-1 "buzz bombs".The Black Widows would be vectored to intercept approaching V-1s by ground control.