The RWD 6 was a Polish sports plane of 1932, constructed by the RWD team. It was a winner of the Challenge 1932 international tourist aircraft contest.
The Aero A.23 was a Czechoslovakian airliner of the 1920s. Aero Vodochody had produced the first Czech airliner, the A.10, four of which had served with ČSA, the national airline. The A.23, another biplane, was bigger, more powerful and could carry more passengers.
The Potez 43 was a family of French light utility and sports aircraft, developed in early 1930s. They were three-seat single-engine high-wing monoplanes.
The Latécoère 4 was a three-engined, 15-passenger biplane built in France in the early 1920s. It proved difficult to fly and was discontinued, though a second machine was completed as the Latécoère 5 bomber.
The Johansen CAJO 59 was a Danish twin-engined amphibious flying boat. Built in the late 1960s, it achieved certification but did not go into production.
The Stearman LT-1 was a late 1920s American biplane, carrying four passengers plus mail.
P.Z.L. P.8 was a fighter designed by Ing. Zygmunt Puławski and constructed by P.Z.L. from 1930.
The Waterman Arrowbile was a tailless, two-seat, single-engine, pusher configuration roadable aircraft built in the US in the late 1930s. One of the first of its kind, it flew safely but generated little customer interest, and only five were produced.
The Gribovsky G-21 was a single engine cabin monoplane designed and built in the USSR in the mid-1930s. Intended for touring and civil utility rôles, only one was completed.
The Potez 38 was a French single engine, eight or nine seat passenger aircraft flown in 1930. Only one was built.
The Caudron C.140 was a French tandem cockpit sesquiplane designed in 1928 as a combination of liaison aircraft and observer and gunnery trainer.
The Curtiss-Reid Courier was designed in Canada in 1931 as a specialist, non-passenger carrying, mailplane capable of maintaining services in Canada's hard winters. The 1930s depression led to the end of government subsidised airmail contracts and only one prototype flew. It was lost in 1933 during preparations for a private, long distance flight.
The Nieuport-Delage NiD 940 was a French, tailless, pusher configuration touring aircraft first flown in 1934. It suffered from longitudinal instabilities and despite modifications and a more powerful engine, it did not receive its Certificate of Airworthiness.
The Aerial Service Mercury Senior, Aerial Mercury Senior or just Mercury Senior was a US biplane mailplane designed to operate at night between New York City and Chicago. A different, smaller, lower wing improved its performance for daytime flights. One was built and used by the United States Post Office Department.
The Laros-100 is a Russian light aircraft specifically designed for aerobatics flying.
The Simplex Red Arrow was a US single-engined monoplane produced in the late 1920s and early 1930s and intended as club machine or mail transport. Most used radial engines in the 90–110 hp (67–82 kW) range. They carried one or two passengers whose seats could be open or enclosed. One variant, the Red Arrow Dual Plane, was easily converted from monoplane to biplane and was available with two versions of the much more powerful Wright Whirlwind engines. In all about 20 were built.
The 1929 Curtiss Model 53 Condor, also known as the Curtiss Model 53 Condor 18 or the Curtiss CO Condor, was a civil passenger version of the Model 52 Condor bomber. A twin-engined biplane, it carried 18 passengers.
The Wallace Touroplane was a late 1920s U.S. three seat, high wing cabin monoplane. About 20 were built.
The Lincoln AP was a U.S., single engine, high wing, general purpose civil cabin aircraft first flown in 1930. Only four were built.
The Swanson-Fahlin SF-1 was a high wing, two seat cabin aircraft with a small radial engine, designed in the United States and first flown in 1934. Only one was built.
