The prototype of the Breguet 17 two-seat fighter flew in the summer of 1918. Production was planned for at least 1,000 series aircraft in 1919 but, after the Armistice, orders were cut back and fewer than 100 being built during the early 1920s.
The Bre.17, like the Bre.14, was an unequal-span two-bay biplane, powered by a 313kW Renault 12K engine and had much better performance. Ailerons were fitted to the upper wing only and were horn-balanced. The prototype was tested as a night-fighter, but no development in that role took place.
Production aircraft were powered by the Renault 12KI engine of slightly higher power, and had revised vertical tail surfaces. The rudder had rounded contours and was horn-balanced. Armament included twin Vickers machine-guns mounted on top of the engine cowling, synchronised to fire through the propeller disc, twin Lewis guns carried on a ring mount in the observer's cockpit, and a third Lewis gun which could fire downwards and under the tail through a trap in the fuselage floor.
Bre.17s flew with a number of French escadrilles, but did not form the sole equipment of any single unit.
Engine: 1 x Renault 12KI, 336kW
Take-Off Weight: 1840 kg / 4057 lb
Wingspan: 14.28 m / 46 ft 10 in
Length: 8.1 m / 26 ft 7 in
Height: 3.42 m / 11 ft 3 in
Wing Area: 43.3 sq.m / 466.08 sq ft
Max. Speed: 218 km/h / 135 mph
Ceiling: 7500 m / 24600 ft
Armament: 5 x 7.7mm machine-guns