On 21 June 1943, the unit became the "Test Pilots' School" within the Aeroplane and Armament Experimental Establishment (A&AEE) at Boscombe Down. The school was "to provide suitably trained pilots for testing duties in aeronautical research and development establishments within the service and the industry". It graduated one group of students, the Number 1 Course, which began in mid-1943 and formally ended on 29 February 1944, before the school's name was changed to the "Empire Test Pilots' School" (ETPS) on 28 July 1944.