To recreate airfield scenes in the film, with the limited number of period aircraft available for the film, large scale models were used. The first requirement was for set decoration replicas. Production of full-size wood and fibreglass Hurricanes, Spitfires and Bf 109s commenced in a sort of production line set up at Pinewood Studios. A number of the replicas were fitted with motorcycle engines to enable them to taxi. Although most of these replicas were destroyed during filming, a small number were made available to museums in the UK.