03/31/2008. Remarks by Johan Visschedijk: "This was the first of eighty MF (Modified F) flying boats produced by the Naval Aircraft Factory under license to Curtiss, who had built 22. Built in 1918 it was delivered to the USN under BuNo. A-5483, and served for four years as a two-seat trainer. It came on the civil registry in 1922 as NC2172 and flew until 1936, thereafter it was stored. In 1965 it was purchased by the USN, and after a three-year restoration it was delivered to the Naval Aviation Museum (presently known as the National Museum of Naval Aviation) in 1968."