The Nieuport & General Aircraft B.N.1 was a single-seat land-based fighter biplane designed between 1917 and 1918. Developed under the leadership of chief designer Henry Philip Folland, the aircraft was intended to meet a British Air Board requirement for a successor to the Sopwith Camel. The design aimed to provide competitive speed and ceiling to match late-war German fighters while offering more benign handling and improved pilot visibility compared to the Camel.
The aircraft was manufactured by the Nieuport & General Aircraft Company Ltd at its works in Cricklewood, London, England. This company had been established on November 16, 1916, by Samuel Waring, the owner of the furniture firm Waring & Gillow, primarily to produce French Nieuport 11 fighters under license for the Royal Naval Air Service and Royal Flying Corps. The B.N.1 was one of the firm's early attempts to develop indigenous British designs. Only a single prototype was ever built and tested during 1918; the aircraft never entered series production.
During evaluation trials in 1918, the B.N.1 was tested alongside other contemporary designs, including the Royal Aircraft Factory S.E.5 and the Sopwith 7F.1 Snipe. While the performance of the B.N.1 was considered broadly similar to that of the Snipe and the S.E.5 derivative, none of the aircraft fully satisfied the official specification. Ultimately, the Sopwith Snipe was selected for production, leaving the B.N.1 without a military contract. Consequently, the aircraft never saw combat service and was operated only by British evaluation units.
Technical details for the B.N.1 remain sparse. It featured a conventional single-bay biplane configuration powered by a single piston engine, though the specific manufacturer and horsepower rating are not documented. While it is inferred that the aircraft would have carried the standard late-WWI armament of twin synchronized Vickers machine guns, this is not explicitly confirmed in available records.
Nieuport & General Aircraft ceased operations in August 1920 when Samuel Waring closed his aviation interests, which also included the Alliance Aeroplane Company and British Aerial Transport. While the design rights to the later Nieuport Nighthawk were purchased by the Gloster Aircraft Company—and Henry Folland was hired as Gloster's chief designer—there is no evidence that the B.N.1 held any commercial value after 1920. No examples of the B.N.1 survive today in museums or private collections.