Potez 56 / 560
Designed by Louis Coroller as an executive transport, the prototype Potez 56 made its first flight on 18 June 1934. Largely of wood construction, the Potez 56 was a cantilever low-wing monoplane with a wing section based on that of the Potez 53 racer, and with a single fin and rudder. It had exceptionally clean lines, the main landing gear units retracting backwards into the nacelles of the two Potez 9Ab radial engines. There was accommodation for a crew of two in an enclosed cockpit, with a cabin for six passengers. Early tests confirmed that the Potez 56 had good flight qualities and was remarkably stable.
Series production included at least three Potez 561 aircraft, with variable-pitch propellers to improve take-off, aerodynamically refined engine nacelles and revised cockpit windows.
Military versions followed, for use in the carrierborne liaison, general utility, target tug, and twin-engine pilot training roles. Total production of all versions, military and civil, was 72, the final examples being two Potez 568 P.3 aircraft, the last of a batch that was completed at the time of the June 1940 armistice with Germany.
Engines: 2 x Potez 9Ab radial, 138kW
Max take-off weight: 2980 kg / 6570 lb
Loaded weight: 1910 kg / 4211 lb
Wingspan: 16.0 m / 53 ft 6 in
Length: 11.84 m / 39 ft 10 in
Height: 4.6 m / 15 ft 1 in
Wing area: 33.0 sq.m / 355.21 sq ft
Max. speed: 270 km/h / 168 mph
Ceiling: 6000 m / 19700 ft
Range: 650 km / 404 miles