Dewoitine D.9

D.9
General information
Type	Monoplane fighter
Manufacturer	Dewoitine
Designer	Emile Dewoitine
Primary user	Regia Aeronautica
Number built	150+
History
First flight	1924

The Dewoitine D.9 was a French monoplane fighter built by Dewoitine and built under licence in Italy as the Ansaldo AC.3.¹

The D.9 was a single-seat high-wing monoplane with a conventional landing gear and powered by a 320 hp (239 kW) Gnome-Rhône 9Ab Jupiter radial engine.¹ First flown in 1924 it was not accepted by the French Army being ranked sixth in the 1923 single-seat fighter competition.¹ A small number of production aircraft were sold for export to Belgium and Yugoslavia and three were built from parts by EKW for the Swiss Air Force.¹ The biggest achievement of the type was an order to licence-build 150 aircraft for the Italian Regia Aeronautica, built by Ansaldo as the Ansaldo AC.3. The type served into the 1930s with the Italian forces.¹

 Belgium

• Belgian Air Force - two

Kingdom of Italy

• Regia Aeronautica - 150 licence-built as the Ansaldo AC.3

 Switzerland

• Swiss Air Force, three licence-built by EKW

 Yugoslavia

• Yugoslav Royal Air Force - six

Data from Illustrated Encyclopedia of Aircraft¹

General characteristics

• Crew: one
• Length: 7.30 m (23 ft 11 in)
• Wingspan: 12.80 m (42 ft 0 in)
• Height: 3.00 m (9 ft 10 in)
• Wing area: 25.00 m² (269.1 sq ft)
• Empty weight: 945 kg (2,083 lb)
• Max takeoff weight: 1,333 kg (2,939 lb)
• Powerplant: 1 × Gnome-Rhône 9Ab Jupiter radial piston engine, 420 kW (560 hp)

Performance

• Maximum speed: 245 km/h (152 mph, 132 kn) at sea level
• Range: 400 km (250 mi, 220 nmi)
• Service ceiling: 8,500 m (27,900 ft)
• Rate of climb: 8.75 m/s (1,722 ft/min)

Armament

• Guns: 2 x 7.7 mm (0.303 in) Vickers machine guns (synchronised, fuselage mounted)
  2 x 7.7mm (0.303 in) Darne machine guns (wing mounted but not always fitted)