The Pitcairn Mailwing family was a series of American mail carrier and three-seat sport utility biplane aircraft produced from 1927 to 1931.
The Central Centaur IIA, a.k.a. Central C.F.2a, was a British civil six-passenger joyriding biplane aircraft produced by Central Aircraft Company Limited of London.
The Albatros L 75 Ass was a German trainer biplane of the 1920s. Of conventional configuration, it seated the pilot and instructor in separate, open cockpits. The wings were single-bay, equal-span, and had a slight stagger. Production continued after Albatros was absorbed by Focke-Wulf.
The Bartel BM 2, originally Bartel M.2 was a Polish biplane primary trainer aircraft prototype of 1926.
The Cunningham-Hall Model PT-6 was an American six-seat cabin biplane aircraft of the late 1920s and was the first design of the Cunningham-Hall Aircraft Corporation of Rochester, New York.
The Meyers OTW was a 1930s United States training biplane designed by Allen Meyers and built by his Meyers Aircraft Company from 1936 to 1944.
The Lincoln-Page PT was an American open-cockpit two-seat single-bay biplane trainer aircraft produced from 1929 to 1931.
The Spartan C3 is an American three-seat open-cockpit utility biplane from the late 1920s.
The Paramount Cabinaire was a 1920s designed cabin biplane, designed by Walter J. Carr and produced by the Paramount Aircraft Corporation. Only eight were completed before production ceased.
The Aerocraft 2AS is a tandem-seat training aircraft developed from the Kinner Sportwing.
The Platzer Kiebitz is a German amateur-built aircraft designed by Michael Platzer and made available in the form of plans for amateur construction.
The Platzer Motte is a German amateur-built aircraft designed by Michael Platzer and made available in the form of plans for amateur construction.
The Williams-Cangie WC-1 Sundancer is an American homebuilt biplane racing aircraft that was designed by Art Williams and Carl Cangie and built by Ralph Thenhaus in 1974. Plans were at one time available from Williams' company, the Williams Aircraft Design Company of Northridge, California. Only one was built.
The Hatz Classic is an American homebuilt biplane, designed by Billy Dawson and produced by the Makelan Corporation of New Braunfels, Texas. The aircraft is supplied as a kit or, alternatively, in the form of plans for amateur construction.
The SkyDancer SD-260 was an American aerobatic homebuilt biplane that was designed and produced by SkyDancer Aviation of Louisville, Kentucky, introduced in the mid-1990s. When it was available the aircraft was supplied as a kit.
The Curtiss/Curtiss-Robertson Model 56 Thrush was a 1929 six passenger high-wing fixed undercarriage single-engine cabin monoplane airliner and utility transport powered by either a Curtiss Challenger or a Wright Whirlwind radial engine and built as an enlargement of the earlier Curtiss Robin. Several were used for record breaking endurance flights by female pilots during the early 1930s including one in which the aircraft stayed aloft for almost ten days.
The Aerostar AG-6 was a prototype Romanian agricultural aircraft of the late 1980s, developed for IAv, of Bacău. The company was later known as Aerostar.
The Command-Aire 3C3 and similar 4C3 and 5C3 are American three-seat open cockpit utility, training and touring biplanes developed by Command-Aire in the late 1920s and early 1930s.
The Gee Bee Model A was an American two-seat open cockpit single-bay biplane developed by the Granville Brothers that first flew in 1929.
The Curtiss-Wright CW-14, named variously Travel Air, Sportsman, Speedwing and Osprey is an American 3-seat open cockpit single-bay biplane from the 1930s that was developed by Travel Air as a replacement for the highly successful Travel Air 4000. As a result of the Great Depression, which also limited sales, Travel Air merged into the Curtiss-Wright group of companies before production could start, so all examples were built by Curtiss-Wright. Its main claim to fame would be as the most numerous aircraft used in the Chaco war, where it formed the backbone of the Bolivian Air Force.
