The Farman F.1010 was a small, low-wing, single-seat monoplane ordered by the French government in 1931 to test in flight a large-calibre cannon.
A distant relative of the Farman F.230 series of two-seat touring and postal aircraft, the F.1010 was funded by a 1931 government contract for an aircraft to flight test the combination of a large calibre (33 mm) but slow firing (2 rounds per second) cannon, manufactured by Atelier des Puteaux (APX), and Farman's own 350 hp (kW) water-cooled engine.
Initially, it also had similar straight edged tail surfaces, with a low fin carrying a rudder that moved between the elevators, mounted on the fuselage top and reaching down to the keel.
Manoeuvrability was addressed by the addition of a second horizontal tail surface at the top of the fin, braced to the original one below with wide chord struts.
Polart also reported strong vibrations at low speeds and a tendency to drop the nose when the engine was at full power.