Dewoitine D.21

D.21
	Argentine Dewoitine D.21
Role	Fighter
Manufacturer	Dewoitine
First flight	1925

The Dewoitine D.21 was 1920s French open-cockpit, fixed-undercarriage, parasol winged monoplane fighter aircraft.

Design and development

The prototype D.21 was a development of the D.12. The aircraft was license-built in Switzerland (by EKW), Czechoslovakia (by Skoda and known as the Skoda-Dewoitine D.1) and Argentina (by FMA). One Turkish D.21 was fitted with a modified wing and named Orhanelli.

Operational history

Argentina bought seven French-built D.21s, and built another 38 under license by FMA from 1929 to 1932. The type remained in service until 1941.^[1] Turkey bought a number, and Czechoslovakia built 25 for their air force.^[2]

Variants

D.21 C.1: French Production version, license-built in Argentina and Turkey.
Skoda D.1: Licence manufacture of the Dewoitine D.21 in Czechoslovakia by Skoda;(26 built - included in D.9 total). Škoda L was a licence-built Hispanio Suiza HS-50. Armament only 2 × 7.7 mm (0.303 in) Vickers machine-guns

Operators

Argentina

Czechoslovakia

Gendarmerie (Czechoslovakia)

Paraguay

Paraguayan Air Force

Switzerland
Turkey

Turkish Air Force

Specifications (D.21 C.1)

Data from Jane's all the World's Aircraft 1928,^[3] The encyclopedia of world aircraft^[2]

General characteristics

Crew: 1
Length: 7.925 m (26 ft 0 in)
Wingspan: 12.8 m (42 ft 0 in)
Height: 3.32 m (10 ft 11 in)
Wing area: 25 m² (270 sq ft)
Empty weight: 1,090 kg (2,403 lb)
Gross weight: 1,590 kg (3,505 lb)
Fuel capacity: 250 kg (550 lb) (ca. 175 L (46 US gal; 38 imp gal))
Powerplant: 1 × Hispano-Suiza 12Gb W-12 water-cooled piston engine, 370 kW (500 hp)
Propellers: 2-bladed fixed pitch propeller

Performance

Maximum speed: 267 km/h (166 mph, 144 kn) at sea level

262 km/h (163 mph; 141 kn) at 2,000 m (6,600 ft)

258 km/h (160 mph; 139 kn) at 3,000 m (9,800 ft)

254 km/h (158 mph; 137 kn) at 4,000 m (13,000 ft)

250 km/h (160 mph; 130 kn) at 5,000 m (16,000 ft)

Range: 400 km (250 mi, 220 nmi)
Service ceiling: 8,991 m (29,498 ft)
Rate of climb: 10 m/s (2,000 ft/min)
Time to altitude: 4,000 m (13,000 ft) in 8 minutes 4 seconds

5,000 m (16,000 ft) in 11 minutes 17 seconds

Wing loading: 63.6 kg/m² (13.0 lb/sq ft)
Power/mass: 0.2694 kW/kg (0.1639 hp/lb)

Armament

Guns: 2 × fuselage-mounted synchronised 7.7 mm (0.303 in) Vickers machine-guns and 2 × wing-mounted 7.5 mm (0.295 in) Darne machine-guns in the centre section (optional)

References

Citations

^ Magnusson 2007, p. 156
^ ^a ^b Donald, David, ed. (1997). The encyclopedia of world aircraft. Leicester: Blitz Editions. ISBN 1-85605-375-X.
^ Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. pp. 18d – 19d.

Bibliography

Bellomo, Sergio (May 2000). "Les Dewoitine D.21 et D.25 de l'Armée argentine" [The Dewoitine D.21s and D.25s of the Argentine Army]. Avions: Toute l'Aéronautique et son histoire (in French) (86): 50–52. ISSN 1243-8650.
Cortet, Pierre (July 1997). "Les premièrs chasseurs de Emile Dewoitine (5ème partie)". Avions: Toute l'Aéronautique et son histoire (in French) (52): 30–37. ISSN 1243-8650.
Magnusson, Michael (Winter 2007). "FMA : from 1945: The Story of Fabrica Militar de Aviones, Argentina: Part 1". Air-Britain Archive. pp. 155–158. ISSN 0262-4923.
Nunez Padin, Jorge Felix (May 1995). "Les Dewoitine D.21 de la Marine argentine" [The Dewoitine D.21 in the Argentine Navy]. Avions: Toute l'Aéronautique et son histoire (in French) (26): 36–42. ISSN 1243-8650.
Taylor, John W. R.; Alexander, Jean (1969). Combat aircraft of the world. London: Ebury P.; Michael Joseph. ISBN 0-71810-564-8.

External links

Dewoitine D.21, AMILARG - Aviacion Militar Argentina (Spanish) Accessed 2023-03-31
CAZA BOMBARDEROS DE LA AVIACION NAVAL: DEWOITINE D-21 - HISTARMAR (Spanish) Accessed 2023-04-01

[1] Magnusson 2007, p. 156

[Donald-2] Donald, David, ed. (1997). The encyclopedia of world aircraft. Leicester: Blitz Editions. ISBN 1-85605-375-X.

[JAWA1928-3] Grey, C.G., ed. (1928). Jane's all the World's Aircraft 1928. London: Sampson Low, Marston & company, ltd. pp. 18d – 19d.

[1]

[2]

[3]