The Blackburn Shark was a British carrier-borne torpedo bomber built by the Blackburn Aircraft company in England. It first flew on 24 August 1933 and went into service with the Fleet Air Arm, Royal Canadian Air Force, Portuguese Navy, and the British Air Observers' School, but was already obsolescent by 1937 and in the following year, replacement by the Fairey Swordfish began.
The Hawker Woodcock was a British single-seat fighter built by the Hawker Engineering Company as the first fighter to be produced by Hawker Engineering. It was used by the RAF as a night fighter in the 1920s.
The Avia BH-21, first flown in 1925, was a robust biplane that served an important role in securing Czechoslovak national security during the period between World War I and World War II. As well as being a competent fighter, it was also an accomplished racer, winning several air races in 1925.
The Canadian Vickers Vancouver was a Canadian transport/patrol flying boat of the 1930s built by Canadian Vickers.
The Hawker Dantorp H.B. III was a Danish single-engined biplane bomber of the 1930s. It was a development of the British Hawker Horsley designed for the Danish Navy. Two examples were built in Britain as a precursor to license production in Denmark. Financial constraints meant this was not realised and the Hawker-built examples were the only aircraft produced. They served until the German invasion of Denmark in 1940.
The Armstrong Whitworth A.W.16 was a British single-engine biplane fighter aircraft designed and built by Armstrong Whitworth Aircraft. A number were sold to the Chinese Kwangsi Air Force.
The Armstrong Whitworth Wolf was a British two-seat reconnaissance aircraft ordered by the Royal Air Force in 1923.
The Armstrong Whitworth A.W.14 Starling was a British single-engine biplane fighter developed for the Royal Air Force in the 1920s. The plane was an unsuccessful model, with the Bristol Bulldog being selected instead.
The Avia BH-7 was a prototype fighter aircraft built in Czechoslovakia in 1923. It was a parasol-wing monoplane developed in tandem with, and as an alternative to the BH-6, which shared its fuselage and tail design. Like the BH-6, the BH-7 was involved in a number of serious crashes during its test programme, which led to its abandonment as a fighter. Undaunted, however, Avia used the design as the basis for a racing aircraft, shortening the wingspan by 1.4 m, fairing the wing directly onto the top of the fuselage and dispensing with the cabane struts. This revised version was designated BH-7B and the fighter (retrospectively) as the BH-7A. When the design proved no more successful as a racer, it was finally put to rest.
The Avia BH-19 was a fighter aircraft built in Czechoslovakia in 1924. It was a low-wing braced monoplane derived from the Avia BH-3 and reflected its designers' ongoing belief that the monoplane configuration was the most suitable for a fighter aircraft. Initial trials revealed excellent performance, but also displayed control problems and aileron flutter. Nevertheless, the Czechoslovakian Army was sufficiently impressed to inform Avia that it would order the BH-19 if the problems could be rectified. The first prototype was destroyed in a crash during speed trials, and the second prototype revealed no better handling than its predecessor. At this point, the Czechoslovakian War Ministry stepped in and asked Avia to cease its attempts to develop a monoplane fighter.
The Avia BH-26 was a two-seat armed reconnaissance aircraft built in Czechoslovakia in 1927. It was a single-bay unstaggered biplane with equal-span wings and a fixed tailskid undercarriage. Both upper and lower wings featured long-span ailerons, which were dynamically balanced by a small auxiliary airfoil mounted to the upper surface of the lower ailerons. Its design was typical of this type of aircraft built during World War I and the years following; pilot and observer sat in tandem open cockpits with the observer armed with a machine gun on a ring mount. As with many other Avia designs, the BH-26 originally had no fixed fin, only a rudder, but this was changed in service.
The Avro 636 was a single-engined British fighter-trainer built by Avro in the mid-1930s. Four were built for the Irish Air Corps.
The Koolhoven F.K.51 was a 1930s Dutch two-seat basic training biplane built by the Koolhoven Company.
The SET 7 was a military trainer and reconnaissance aircraft that was produced in Romania in the mid-1930s. It was originally designed as a conventional single-bay biplane, with slightly staggered wings, a standard undercarriage with fixed tailskid, and a tandem open-cockpit arrangement for the pilot and instructor or observer. Power was supplied by an Armstrong Siddeley Jaguar radial engine, and from the outset the aircraft was equipped for wireless and photographic reconnaissance duties.
The Fokker D.XVI was a sesquiplane fighter aircraft developed in the Netherlands in the late 1920s.
The Heinkel HE 8 was a reconnaissance floatplane built in Germany in the late 1920s. It was developed at the request of the Danish Navy, which had noted the success of the HE 5 in Swedish service, and wished to purchase a similar aircraft as well as licensed production as the Orlogsvaerftet HM.II. Apart from its new Armstrong Siddeley engine, the HE 8 also differed from the HE 5 and previous members of the HE 1 family in having a conventional empennage. 22 aircraft were operated until the German invasion in 1940, after which one example was impressed into Luftwaffe service and the remainder placed in storage.
The Armstrong Whitworth A.W.19 was a two/three-seat single-engine biplane, built as a general-purpose military aircraft in the mid-1930s. A newer, monoplane aircraft was preferred and only one A.W.19 was built.
The de Havilland DH.56 Hyena was a prototype British army cooperation aircraft of the 1920s. A single-engined biplane, the Hyena was designed against an RAF requirement, but was unsuccessful with only two being built, the Armstrong Whitworth Atlas being preferred.
The Hawker Hoopoe was a British prototype naval fighter aircraft designed and built in 1927 by Hawker Aircraft.
The Fairey Ferret was a 1930s British general-purpose biplane designed and built by the Fairey Aviation Company. It performed well in trials but was not ordered into production.
