The Focke-Wulf Fw 44 Stieglitz ("Goldfinch") is a 1930s German two-seat biplane. An early design by Kurt Tank, it was produced by the Focke-Wulf company as a pilot training and sports flying aircraft. It was also eventually built under license in several other countries.
The Douglas T2D was an American twin-engined torpedo bomber contracted by the military, and required to be usable on wheels or floats, and operating from aircraft carriers. It was the first twin-engined aircraft to be operated from an aircraft carrier.
The Arado S I was a biplane trainer built in Germany in 1925. The first of three prototypes was powered by a Bristol Lucifer radial engine, while the other two Arado S.Ia aircraft were fitted with the Siemens-Halske Sh 12. The Siemens-Halske Sh 11 powered the Arado S III, a virtually identical aircraft of which only a single prototype was constructed and sold to Turkey.
The Arado W 2 was a two-seat twin-engine seaplane trainer developed for the DVS in 1928. It was a cantilever monoplane with a fabric-covered steel tube fuselage that accommodated the pilot and instructor in tandem open cockpits. The undercarriage consisted of two pontoons carried on steel struts.
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 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 SET XV was a fighter aircraft developed in Romania in the mid-1930s. It was a conventional single-bay biplane with staggered wings of unequal span braced by N-struts. It was fitted with fixed tailwheel undercarriage with spatted mainwheels. The cockpit was fully enclosed, and the engine was fitted with a NACA cowl. Construction throughout was fabric-covered metal.
The Koolhoven F.K.50 was a 1930s Dutch eight-passenger light transport monoplane designed and built by Koolhoven.
The Focke-Wulf A 20 Habicht was an airliner developed in Germany in the late 1920s. It was a high-wing cantilever monoplane with fixed tailskid undercarriage. The fuselage was deep and seated four passengers in a fully enclosed cabin. The type was not bought by the airlines and only a few examples were built.
The Focke-Wulf S 2 was a trainer aircraft built in Germany in the late 1920s. It was a conventional parasol-wing monoplane with fixed tailskid undercarriage. The pilot and instructor sat side by side in an open cockpit. Only a single example was built.
The Lublin R-XI was the Polish passenger plane for 4 passengers, designed in 1930 in the Plage i Laśkiewicz factory in Lublin, that remained a prototype.
The Lioré et Olivier LeO 20 was a French night-bomber aircraft built by Lioré et Olivier.
The PWS-51 was a Polish sports plane of 1930, a single-engine low-wing monoplane, constructed by the Podlaska Wytwórnia Samolotów (PWS), that remained a prototype.
The Boeing Model 6D, a.k.a. Boeing Model 6E, Boeing B-1D and Boeing B-1E, was an American pusher biplane flying-boat built by Boeing between 1928 and 1929.
The Nuri Demirağ Nu D.36 was a 1930s Turkish two-seat training biplane built by the Nuri Demirağ Aircraft Works in Istanbul for the Turkish military.
The IAR-22 was a single engine basic trainer built in Romania in about 1934. It was a low-wing monoplane with two seats in tandem and a fixed conventional undercarriage.
TheYakovlev AIR-9 / AIR-9bis was a 2-seat sport aircraft designed and built in the USSR during the early 1930s.
The IAR-817 was a Romanian multipurpose aircraft built in the 1950s.
The IAR-811 was a Romanian trainer aircraft built in the late 1940s. It was the first aircraft designed and built in Romania following the end of the Second World War.
The IMAM Ro.26, sometimes called the Romeo Ro.26, was a single-engine biplane trainer aircraft produced by the Italian aeronautical company IMAM in the early 1930s. Only one example was built.
