The Thomas-Morse MB-3 was an open-cockpit biplane fighter primarily manufactured by the Boeing Company for the U.S. Army Air Service in 1922. The MB-3A was the mainstay fighter for the Air Service between 1922 and 1925.
The Gloster F.5/34 was a British fighter of the 1930s. It was a single-seat, single-engine monoplane of all-metal cantilever construction; the undercarriage was of the tailwheel type with retractable main wheels.
The Morane-Saulnier AF, also known as the Morane-Saulnier Type AF and the MoS 28 was a French First World War single-seat biplane fighter prototype from 1917.
The Rohrbach Ro II was an all-metal, 4-seat reconnaissance and bomber flying boat, designed and produced in Germany in 1923.
The ANF Les Mureaux 170 was a prototype French fighter aircraft of the 1930s. It was a single-engined, single-seat parasol monoplane, but only two were built, the type being rejected for service by the French Air Force.
The Kondor E 3, sometimes erroneously known as E.III, was a German single seat, monoplane fighter aircraft designed and built close to the end of World War I. Though successful in the third D-type fighter competition at Aldershof in September 1918, only a few were produced, given the Idflieg designation of Kondor D.I.
The Nieuport-Delage NiD 48 was a French single-engine parasol wing light fighter aircraft, designed and built in the 1920s. Its performance was not markedly better than that of the much heavier Nieuport-Delage NiD 62 then going into production, so only two were flown.
The Mitsubishi 1MF10 or Mitsubishi Experimental 7-Shi Carrier Fighter (七試艦上戦闘機) was a prototype Japanese monoplane single-seat carrier-based fighter aircraft of the 1930s. Two were built for the Imperial Japanese Navy, but both were lost in crashes, with no production following.
The Wibault 3 or Wibault Wib 3 C.1 was a French parasol wing prototype fighter aircraft from the 1920s, designed for high altitude operations. Its development was abandoned after repeated materials failure in its supercharger.
The Wibault 8 or Wib 8 Simoun (Simoon) was a tandem seat, parasol wing fighter aircraft designed and built in France to a 1925 specification which was later withdrawn; only one Wib 8 was completed.
The Wibault 9 or Wib 9 was a single seat, parasol wing fighter aircraft designed and built in France in the 1920s. It was a re-engined version of the relatively successful Wib 7, but failed to reach production.
The Wibault 12 Sirocco or Wib 12 Sirocco was a two-seat, parasol wing fighter aircraft designed and built in France in the 1920s. Three fighter prototypes were completed, one for the RAF and two Army co-operation variants. There was no series production.
The Wibault 13C.1 Trombe (Whirlwind), later known as the Wib 130C.1 Trombe was a single seat, parasol wing lightweight fighter aircraft designed and built in France in the 1920s. It was developed into the more powerful Wib 170C.1 Tornade (Tornado) but government interest in lightweight fighters soon waned.
The Wibault Wib 210 C.1 was a single engine, single seat low wing monoplane fighter aircraft, designed and built in France in the late 1920s. Flight tests revealed vibration problems and development was quickly abandoned.
The Letov Š-3 was a single-seat, single-engine parasol wing fighter aircraft designed and built in Czechoslovakia in the early 1920s. Only one was completed and flown, its makers preferring to develop a biplane fighter.
The Caudron 02 was a French high altitude single seat fighter that was flown in November 1917.
The Lohner Type AA were a series of prototype fighters built during World War I. The program would eventually be cancelled due to inherent instability concerns of the design.
The Villiers VIII or 8amC1 was a French shipboard fighter capable of alighting on water. After competitive tests, it did not receive a production order.
The Salmson-Béchereau SB-5 was a two-seat fighter aircraft built for a French government programme in 1925. Despite a powerful engine it did not perform well and only one was built.
The Rohrbach Ro III was a twin-engined, all-metal flying boat built in Germany in the mid-1920s. A development of the Ro II, it could be configured either as an airliner or a reconnaissance aircraft. It was developed into the similar but more powerful Ro IIIa Rodra, intended only as a military reconnaissance/bomber. Four Ro IIIs were bought by Japan and two Rodras by Turkey.
