Design and Development
The original Potez 630 was built to meet the requirements of a 1934 heavy fighter specification which also resulted in the successful Breguet 690 series of attack aircraft. The prototype first flew in 1936 and proved to have excellent handling qualities.
The Potez 630 was a twin engine, monoplane, fully metallic three-seater with efficient aerodynamic lines and twin tailplanes. The long glasshouse hosted the pilot, an observer or commander who was only aboard if the mission required it, and a rear gunner who manned a single flexible light machine gun.
Only very minor changes were required and an order for 80 was placed in 1937. Simultaneously 80 Potez 631 C3 fighters were ordered, these having Gnome-Rhône 14M radial engines rather than the Hispano-Suiza 14AB10/11 of the Potez 630. Fifty additional Potez 631s were ordered in 1938 of which 20 were diverted to Finland, although they never reached that country.
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