The Caproni Ca.4 was an Italian heavy bomber of the World War I era.
The Sikorsky Ilya Muromets was a class of Russian pre-World War I large four-engine commercial airliners and military heavy bombers used during World War I by the Russian Empire. The aircraft series was named after Ilya Muromets, a hero from Slavic mythology. The series was based on the Russky Vityaz or Le Grand, the world's first four-engined aircraft, designed by Igor Sikorsky. The Ilya Muromets aircraft as it appeared in 1913 was a revolutionary design, intended for commercial service with its spacious fuselage incorporating a passenger saloon and washroom on board. The Ilya Muromets was the world's first multi-engine aircraft in production and at least sixty were built. During World War I, it became the first four-engine bomber to equip a dedicated strategic bombing unit. This heavy bomber was unrivaled in the early stages of the war, as the Central Powers had no aircraft capable enough to rival it until much later.
The Breguet 19 was a sesquiplane bomber and reconnaissance aircraft which was also used for long-distance flights and was designed by the French Breguet company and produced from 1924.
Potez 25 was a French twin-seat, single-engine sesquiplane designed during the 1920s. A multi-purpose fighter-bomber, it was designed as a line aircraft and used in a variety of roles, including fighter and escort missions, tactical bombing and reconnaissance missions. In the late 1920s and early 1930s, Potez 25 was the standard multi-purpose aircraft of over 20 air forces, including French and Polish. It was also popular among private operators, notably mail transport companies.
Between 1920 and 1951 the Société des Moteurs Salmson in France developed and built a series of widely used air-cooled aircraft engines.
The Potez XV was a French single-engine, two-seat observation biplane designed as a private venture by Louis Coroller and built by Potez and under licence by Podlaska Wytwórnia Samolotów and Plage i Laśkiewicz in Poland.
The Blériot-SPAD S.56 was a family of French airliners developed in the 1920s as various refinements of the S.33 design. All S.56 versions shared two new features: the first was a newly designed, all-metal wing, replacing the wooden wing of earlier related designs and the second was a redesigned passenger cabin, replacing the S.33's four single seats in a row with two rows of double seats. A second access door was also added.
The Potez 540 was a French multi-role aircraft of the 1930s. Designed and built by Potez, it served with the French Air Force as a reconnaissance bomber, also serving with the Spanish Republican Air Force during the Spanish Civil War. Although obsolete as a bomber, it remained in service in support roles and in France's overseas colonies at the start of World War II.
The Potez 452 was a French flying boat designed and built by Potez in response to a French Navy specification for a shipboard reconnaissance machine for use on its battleships and cruisers.
The Farman F.300 and F.310 were trimotor monoplane airliners designed and produced by the French aircraft manufacturer Farman Aviation Works.
The Hanriot H.43 was a military utility biplane designed and produced by the French aircraft manufacturer Hanriot. It was primarily used by the Aéronautique Militaire as a trainer aircraft during the interwar period.
The Potez 39 was a twin-seat single-engined parasol wing monoplane aerial reconnaissance and observation aircraft designed and produced by the French aircraft manufacturer Potez. It was the company's first all-metal aircraft.
The Morane-Saulnier Alcyon is a two or three-seat basic training monoplane designed and built in France by Morane-Saulnier.
The Potez 56 was a 1930s French executive transport monoplane built by Potez and later used as a military crew trainer and liaison aircraft.
The Potez 36 was a French two-seat touring or sport monoplane designed and built by Potez.
The Wibault 360 was a 1930s French five-passenger airliner designed and built by the Wibault company.
The Morane-Saulnier MS-700 Pétrel was a French four-seat cabin-monoplane designed and built by Morane-Saulnier, only three prototypes were built.
The Potez 40 was a French three-engine, braced high-wing monoplane designed and built in response to a French government programme for colonial transport and policing aircraft duties.
The Caudron C.101 and its variants, the C.103, C.104 and C.107 were French two seat reconnaissance aircraft flown from 1925, differing in their engines.
The Morane-Saulnier MS.250 was a crew-trainer aircraft built by Morane-Saulnier in the late 1920s.
