On 17 November 1943, the operational squadrons departed, and the station was used for bomber crew training, led by Captain Robert White. It became known as the Lancaster Finishing School (LFS) in January 1944. From November 1943 to July 1944, there was also a Bombing and Gunnery Defence Training Flight in attendance with several Wellingtons, Spitfires, Hurricanes, plus a few Martinet tug aircraft; all employed in brushing up the skills of air gunners on air-to-air exercises. The LFS left on 1 April 1945, with No. 49 Squadron arriving from RAF Fulbeck later in the month who only had one operation before leaving to RAF Mepal in September.