Type 63-11 3-seat Reconnaissance (A3) 631  3-seat Fighter
Engine 2  Gnôme & Rhône  14M 4/5
Dimensions Length  10,93 m , height 3,08 m ,  span  16,0 m, wing area  32,70 m2 , Length  11,09  m , height 3,62 m ,  span  16,0 m, wing area  32,70 m2
Weights Empty 3125 kg, loaded  , max. take off weight  4530 kg Empty 2450 kg, loaded  , max. take off weight  4500 kg
Performance Max.. speed  425 km/h at 5500 m, cruising speed  , range 1500 km , endurance  , service ceiling  8500 m , climb to 4000 m 6 min. 12 sec. Max.. speed  443 km/h at 4500 m, cruising speed 360 km/h , range 1220 km , endurance  , service ceiling  9000 m , climb to 4000 m 6 min. 12 sec.
Armament 1 fixed 7,5 mm MAC 34 forward, 1 movable  7,5 mm MAC 34 rearwards, 1 fixed 7,5 mm MAC 34 rearwards
280 Kgs of bombs		 1 7,5 mmMAC 34 of 7.5mm in the back post (some aircraft were equipped with double machine-guns)
2 20 mm cannons Hispano Suiza HS 9 or HS 404 under the fuselage
Production

843 Potez 63-11 were built after the prototype that made its first flight on December 31, 1938 . They are divided in :

702 Potez 63-11 were delivered before may 31, 1940 :
431 manufactured in Méaulte
243 manufactured in Mureaux
28 manufactured inà Evreux
Around 120 manufactured after the Armistice, some of which were delivered to Romania

297 three-seat fighter Potez of the serial 630 have been built since the date of the first flight on April 25, 1936. They are divided into :

84 Potez 630
213 Potez 631