The Boeing-Stearman Model 75 "Kaydet" two-seat biplane is a primary trainer. The Stearman Model 75 was evolved from the Stearman Model 6 or YPT-9 Cloudboy as a private venture by the Stearman Aircraft Company of Wichita. Model 73, the prototype of the Kaydet flew first on 26 November 1934. The Kaydet became a success: it was ordered by the U.S.Navy and the U.S.Army for use as a trainer. The Navy named the Boeing 75 the NS-1, later evolved into the N2S series. The Army aircraft was the PT-13, later evolved into the PT-17 and PT-18. The Kaydet variants were sold for military and civilian users outside the USA to countries like Canada and China. Boeing built 8584 Model 75 in all versions, plus the equivalent of 2000 more in spares. Lloyd C. Stearman founded the Stearman Aircraft Company in 1926. In 1929 Lloyd Stearman sold his company to the 'United Aircraft and Transport Corporation'. In September 1934 the group was split up and Boeing Air Transport, pulled out of this group and took the Stearman Aircraft Company with it as wholly owned subsidiary. The Boeing-Stearman Model 75 and its variants were manufactured by the Stearman Aircraft Company in Wichita, Kansas from 1934 through 1945. In 1938 the Stearman Aircraft Company became the Stearman Aircraft Division of the Boeing Aircraft Company. Generally, all the Stearman Kaydet airframes built are the same with the only major difference being the engine installed. Due to the Kaydet's solid construction and reliable low speed handling, over 2000 airframes were converted for agricultural spraying after the war.
The ICAO Aircraft Type Designator for the Boeing/Jones 75 is ST75.

Boeing-Stearman 75 Kaydet N746BJ is strictly a Boeing/Jones 75 s/n AR-37 built in 1985. This bi-plane is painted U.S. Navy 337 (05337) as the in 1941 built Boeing-Stearman N2S-3 Kaydet. The U.S.Navy 05337 was a Boeing-Stearman Model B75N-1 c/n 75-6411. On 3 September 2005, the N746BJ "Spirit of Galesburg" crashed at Damme airfield in Germany. The aircraft was rebuilt, first in Litouwen and then completed at Hoogeveen in the Netherlands. On 9 January 2008, the Boeing/Jones 75 N746BJ was delivered in slightly revised colors out of Hoogeveen to its home-base Nordhorn-Klausheide, Germany.
On 17 August 2005, Boeing-Stearman 75 Kaydet N746BJ was seen at Hoogeveen airfield (EHHO) in 'U.S.Navy 337' colors.

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