shot at Weston Aerodrome near Dublin (which should not to be confused with RAF Weston-on-the-Green, England). Pilots from the Irish Air Corps helped recreate the live dog-fight scenes, supported by number of civilians, including Charles Boddington and Derek Piggott. Piggott was the only pilot willing to fly beneath the spans of a bridge. Taking the role of both German pilots and with multiple takes from contrasting camera angles, he ended up flying 15 times under the wide span of the Carrickabrack Railway Viaduct in Fermoy, County Cork, Ireland, and 17 times under the narrower span. The two Fokker Dr.I triplane replicas had about of clearance on each side when passing through the narrower span. He was able to fly through the arch reliably by aligning two scaffolding poles, one in the river and one on the far bank. Just before the scenes of flying beneath the bridge, one of the Triplanes executes what could be considered a near-perfect barrel roll as seen from aft of the two Dr.Is used for the scene. Off screen, actor George Peppard flew one of the Pfalz used in the movie. The director had placed a flock of sheep next to the bridge so that they would scatter as the aircraft approached to show that the stunt was real and not simulated with models. However, by later takes, the sheep had become accustomed to the aircraft, and had to be scared by the shepherd instead. In the printed take, the sheep continued to graze, creating a continuity error which can be seen in the finished film. The entire collection of aircraft, uniforms and supporting equipment was purchased from 20th Century Fox by ex-Royal Canadian Air Force pilot Lynn Garrison. He kept the collection together in Ireland under his company, Blue Max Aviation, Ltd. Over the following years they played a part in You Can't Win 'Em All, Darling Lili, Zeppelin, Von Richthofen and Brown, and various television commercials, including a classic Ridley Scott production promoting Opel's limited edition "Blue Max." Both of the Pfalz replicas and one Fokker D.VII now belong to New Zealand film director Peter Jackson's 1914–18 Trust, with the Viv Bellamy-designed Pfalz now being on display at the Omaka Aviation Heritage Centre in New Zealand. All three aircraft are kept in fully airworthy condition. Another of the Fokker D.VII's is on display at the Southern Museum of Flight in Birmingham, Alabama. Locations