The Curtiss-Wright AT-9 Jeep was an American twin-engined advanced trainer aircraft used by the United States during World War II to bridge the gap between single-engined trainers and twin-engined combat aircraft. The AT-9 had a low-wing cantilever monoplane configuration, retractable landing gear and was powered by two Lycoming R-680-9 radial engines.
The Aeronca L was a 1930s American cabin monoplane designed and built, in small numbers, by Aeronca Aircraft. It differed significantly from other Aeronca planes by the use of radial engines, streamlining, and a cantilever low wing.
The Burnelli UB-14, also known as the Cunliffe-Owen Clyde Clipper, was a 1930s American prototype lifting-fuselage airliner designed and built by Vincent Burnelli.
The Goodyear GA-2 Duck was a 1940s American three-seat light amphibious aircraft built by the Goodyear Aircraft Corporation. The design team included David Thurston, who later developed several other light seaplanes including the Colonial Skimmer, Lake Buccaneer, Thurston Teal and Seafire. Only 19 aircraft were built, and these were used only for testing and as demonstrators.
The Harlow PJC-2 was a 1930s American four-seat cabin monoplane, designed by Max Harlow.
The Grumman XSBF, also known by the company designation G-14, was an American biplane scout bomber developed by Grumman Aircraft for the United States Navy during the 1930s. Derived from Grumman's successful "Fifi" fighter, the aircraft was developed at a time when the biplane was giving way to the monoplane. In competition against other aircraft it proved to possess inferior performance in its intended role, and did not enter production. The sole prototype went on to serve as a liaison aircraft, as well as being used in experiments by NACA, before being destroyed in a crash in 1939.
The Piper PA-6 Sky Sedan was a 1940s American four-seat light aircraft designed and built in prototype form by Piper Aircraft at its Lock Haven, Pennsylvania, factory.
The Fokker F-11 was a luxury flying boat produced as an 'air yacht' in the United States in the late 1920s. Technically the aircraft was the Fokker Aircraft Corporation of America's Model 9. It was sold in North America as the Fokker F-11 and was offered in Europe as the Fokker B.IV. By the time the first six aircraft had been constructed, it was already evident that the design was not going to sell well. A few were sold, two to notable multi-millionaires; Harold Vanderbilt and Garfield Wood each purchasing one. One was bought by Air Ferries in San Francisco. The F-11A cost $40,000 but the price was slashed to $32,500 as the depression set in during 1930. The F-11 was a commercial failure.
The Vulcanair SF.600 Canguro was a feederliner developed in Italy in the late 1970s. Despite a number of attempts to put the aircraft into series production, only a small number were ever built. The Canguro was a high-wing cantilever monoplane of conventional configuration with a fuselage of rectangular cross-section and a high-set tail. The tricycle undercarriage was not retractable, and its main units were carried on sponsons on the fuselage sides. SIAI Marchetti provided funding towards the construction of the prototype, and constructed this aircraft at the former Aviamilano plant. After flight testing proved positive, the type was put on sale, but failed to attract buyers in any number, even when the original piston engines were exchanged for turboprops and retractable undercarriage was offered as an option.
The PZL M-17 "Duduś Kudłacz" was a Polish twin-boom pusher general aviation and trainer aircraft of 1977, which remained a prototype.
The Bullet Monoplane or Alexander Eaglerock Bullet was a low wing cabin monoplane that was a departure from traditional biplane aircraft of the era.
The Fairchild 100 Pilgrim is an American single-engined high-wing monoplane transport, and was one of a series of single-engine utility transports built by Fairchild Aircraft.
Raoul J. Hoffman was a Hungarian-born Jewish engineer and writer who moved to the United States of America notable for the aircraft he designed or helped to design.
The St. Louis C2 Cardinal family are a series of light sport monoplanes built by the St. Louis Aircraft Corporation during the peak of the Lindbergh Boom after the Spirit of St. Louis flight of 1927.
The Aerocraft 2AS is a tandem-seat training aircraft developed from the Kinner Sportwing.
The Procaer Cobra was a two-seat turbojet powered light aircraft designed and built in Italy and flown in the early 1960s. Only one was completed.
The Stinson Model R was an American light aircraft built by the Stinson Aircraft Company in the early 1930s. It was a single-engine high-winged monoplane, developed from the Stinson Junior. 39 units were built.
The G.A.C. 102 Aristocrat or General 102 Aristocrat is a single-engined cabin monoplane built in the US just before the Great Depression. It proved popular, with over forty built; an early example was taken on an aerial survey of Antarctica. One survives.
The Yackey Monoplane was an American three seat parasol monoplane flown in the late 1920s. Two prototypes had some success in the 1927 New York - Spokane National Air Derby and orders were placed but a crash killed its designer and ended production.
The Argonaut Pirate was a 1930s, U.S., three place, single-engined pusher configuration amphibious aircraft. Only two were built.
