The Aero Letňany A.10 was a biplane airliner produced in Czechoslovakia shortly after World War I. It was the first commercial aircraft to be built in Czechoslovakia and was known as the Ae-10 Limousine. It was designed by Husnik and Vlasak and was intended to meet the growing need for aerial communication to and from the country. Behind the single nose-mounted engine was a cabin with seats for three and two tables, upholstered on the underside, and able to be inverted to provide another two seats if required. A double skinned firewall between the engine and cabin, together with double skinned surfaces to the walls, floor and roof and Triplex windows gave a (relatively) quiet ride. A rear window gave communication with the pilot, whose open cockpit was above and behind the cabin. The cockpit also accommodated the navigator who had a seat directly behind the pilot.
The Ace Junior Ace is a two-seat sports aircraft that has been offered by the Ace Aircraft Manufacturing Company in kit and plans form for home building since the early 1930s. It was designed by Orland Corben.
The Miller Lil' Rascal was a two-seat sporting biplane built by high school students in Claxton, Evans County, Georgia, USA, in the late 1970s. Construction began in November 1975 by a group of 15 students at Claxton High School under the direction of B. G. Tippins. Of conventional biplane configuration, it accommodated pilot and passenger side-by-side in an open cockpit. The wings were of dacron-covered wood, and the fuselage was of dacron-covered welded steel tube construction. It had fixed tailwheel undercarriage with spatted mainwheels.
The Brditschka HB-3, HB-21 and HB-23 are a family of motor gliders of unorthodox configuration developed in Austria in the early 1970s.
The Caproni Vizzola Calif was a family of sailplanes produced in Italy in the 1970s and 1980s. Of typical sailplane configuration with T-tails, they featured distinctive wings with centre sections of constant chord and trapezoidal outer panels. The forward fuselage was constructed of fibreglass over an alloy frame, while the rear fuselage, wings, and empennage were metal-covered.
The Heinkel HE 18 was a sports aircraft built in Germany in the mid 1920s. It was a two-seat conventional low-wing monoplane. A development of the HE 3, it had a narrower fuselage than the HE3, having tandem seating instead of side-by-side. Also, its wings were braced by a pair of struts on each side, arranged in a V-shape with a single attachment point on each side of the upper fuselage, where the HE 3 had cantilever wings. The wings could be folded flat along the sides of the fuselage for transport or storage, and a choice of wheeled or float undercarriage was available. A roll-bar was available that could be fitted in order to protect the occupants in case of a roll-over on the ground.
The Heinkel HD 40 was a special-purpose cargo aircraft developed in Germany in the 1920s to distribute the Berlin newspaper B.Z.. The success of Heinkel's previous design for the publisher, the HD 39, led to the order of a similar aircraft with greater capacity, and Heinkel responded with a machine of similar layout, but considerably enlarged. Like the HD 39, it was a conventional single-bay biplane with staggered wings of unequal span, and a fuselage that nearly filled the interplane gap. The pilot sat in an open cockpit, and the undercarriage was of fixed, tailskid type with divided main units. The wings were of wooden construction, while the fuselage was built from welded steel tube skinned in plywood.
The Javelin Wichawk is a sporting biplane designed in the United States in the early 1970s and marketed in plan form for amateur construction.
The MacDonald S-20 is a single-seat sport aircraft that was designed in the United States in the early 1970s and marketed for home building.
The Pottier P.100 and its derivatives were a family of single-engine aircraft developed in France in the 1970s and 80s. They were high-wing cantilever monoplanes of conventional design with enclosed cabins and fixed tricycle undercarriage. The P.100 had two seats, arranged side-by-side, while the P.110 had its fuselage stretched by 50 cm (20 in) to include a third seat and a greater wingspan. The P.105 was a hybrid of the two designs, featuring the shorter, two-seat fuselage of the P.100 and the longer-span wings of the P.110.
The DB-LK was a bomber aircraft designed and built in the USSR in 1939.
The Breda Ba.79S was a single-engine four-seat high-wing private aircraft built in Italy in the late 1930s. Only a few were produced.
The CANT Z.1012 was a small three-engined monoplane built in Italy in the late 1930s to carry either three or five passengers depending on the engines. A small number were built for Italian diplomatic use.
The Farman F.250 was a small, four passenger single engine low cantilever wing airliner built in France in 1931. The single example built was bought by an airline but was little used, owing to stability issues.
The Burnelli RB-1 was a US twin engine biplane airliner prototype from 1920, incorporating a lifting body fuselage.
The Paalson Type 1, (Pålson), was a Swedish single-seat sport aircraft built around 1920. It was of conventional single-seat biplane layout but had some unusual features such as girder type interplane struts, a novel main undercarriage axle mounting and a mechanism allowing adjustment of the angle of incidence of the upper wing.
The ICA IAR-35 is a Romanian glider designed and built in the 1980s primarily for aerobatics, though capable of general purpose use. Several production prototypes were constructed.
The MMPL Kanpur was an Indian light four-seat aircraft, designed for service and agricultural work in the early 1960s. It is a rare example of an aircraft designed and built by a national air force for its own use.
The Bréguet 670, Bréguet 670T or Bréguet-Wibault 670 was a French twin engine, all metal eighteen seat airliner with a retractable undercarriage flown in 1935. Only one was built.
The Yakovlev AIR-12 was a long-range sport aircraft designed and built in the Soviet Union during the late 1930s.
