The Farman F.220 and its derivatives were thick-sectioned, high-winged, four engined monoplanes from Farman Aviation Works. Based on the push-pull configuration proven by the F.211, design started in August 1925 and the first flight of the prototype was on 26 May 1932. The largest bomber to serve in France between the two world wars was the final F.222 variant. One variation was intended to be an airliner. Development After testing the sole F.220 prototype, Farman made a number of changes to the design, including a new tail fin, fully enclosing the nose and ventral gunners' positions, and changing from V-engines to radials. The first example of this version, dubbed the F.221 flew in May 1933, and was followed by ten production examples delivered to the Armee de l'Air from June 1936. These machines featured hand-operated turrets for the three gunners' stations. Meanwhile, the prototype F.220 was sold to Air France, where christened Le Centaur, it flew as a mail plane on the South Atlantic route. This led to a batch of four similar aircraft being built for the airline. The F.222 variant began to enter service with Armee de l'Air in the spring of 1937. Unlike its predecessor, this plane featured a retractable undercarriage. Twenty-four aircraft were produced with redesigned front fuselages and dihedral added to the outer wing. During World War II these planes were used in leaflet raids over Germany and then night bombing raids during May and June 1940. These resulted in three losses. The Farman F.222 was involved in a notable operation carried out by French fighter pilot James Denis. On 20 June 1940, realising that the Battle of France was lost, Denis borrowed a Farman F.222 from an airbase near Saint-Jean-d'Angély. He flew to Britain with twenty of his friends, and joined the Free French Air Force, in which service he subsequently became an ace, shooting down nine German aircraft. The F.223 (redesignated NC.223 when Farman was absorbed into SNCAC) incorporated significant changes, including a twin tail and a considerably refined fuselage. The first prototype was ordered as a long-range mail plane and in October 1937 established a record by flying 621 miles with a 22,046 lb payload. The Ministere d l'Air ordered a production run of 8 of the NC223.3 variation which was commenced in 1939. A variant NC 223.4 Jules Verne, a mail delivery plane converted back into a bomber after requisition at