The Fokker D.VII was arguably the best fighter aircraft of World War I. As a part of the Armistice Agreement, the U.S. received 142 Fokker D.VII aircraft as war reparation payment. Eleven of them came here to Dayton, Ohio, to the Engineering Division at McCook Field. There, engineers made extensive modifications to their powerplants by installing Liberty and Packard engines. They also gave them “P” designators, such as P-108 and P-127. The Army Air Service pilots all agreed that none of the U.S. modifications made the aircraft fly as well as the unmodified German version. None of the original McCook Field aircraft exist today, and only three of the original 142 brought to the U.S. remain. The museum’s example is a reproduction.