This strange aeroplane was the product of the little known Société Francaise de Constructions Aéronautiques (SFCA). That French company had inherited a design called the Maillet-Nening MN-A from its recently deceased designer: André Maillet. From it they developed their first product, the Maillet 20 in 1935. Only two of this all-wooden three-seat monoplane tourer were produced, but the Armée de l’Air saw something in the design and bought 30 examples of an improved trainer version under the name Maillet 201.
The Maillet 21 was sort of prototype made rebuilding the still unbuilt second Maillet 20. The main peculiarity of this model was its cockpit disposition: the pilot was placed at the rear on araised seat yet the forward glazing was lowered to lay flush with the forward fuselage. From this prototype SFCA manufactured a short production serie equipped with a retractable undercarriage under the name of Maillet-Lignel 20.
The Maillet 21 in all its eccentric splendor. Photo taken at the 1935 Hélène Boucher Cup race, a race for female pilots. The 21 was no slouch; Claire Roman finished second at its helm. The Spanish Republicans bought this monoplane later and it was devoured by the Spanish Guerra Civil cauldron.