The Fokker D.XXI fighter was designed in 1935 by Dutch aircraft manufacturer Fokker.
Fokker D.XXI Fighter
The D.XXI was designed as an inexpensive, rugged, and compact fighter aircraft that would possess respectable performance for its era. Entering operational use in the early years of the Second World War, it provided yeoman service for both the Luchtvaartafdeling (Dutch Army Aviation Group) and the Finnish Air Force. Additionally, a few examples were constructed by the El Carmolí factory before it fell into rebel hands during the Spanish Civil War. Following the invasion and occupation of the Netherlands in May 1940, several captured Dutch D.XXIs were subsequently placed into service with the Luftwaffe.
The Fokker D.XXI was a low-wing monoplane fighter aircraft. Following standard Fokker design practice of the period, it featured a welded steel tube fuselage that was largely covered by fabric, including the flight control surfaces; element forward of the trailing edges of the wings were covered by detachable aluminum panels instead. The wings were of a wooden construction, being composed of two box spars attached to ribs made of plywood. The aircraft was outfitted with a fixed spatted undercarriage with cantilever legs; braking was provided by independently-operated pedals using compress air.The Fokker D.XXI was first used in combat by the Finnish Air Force during the 1939–1940 Winter War between the Soviet Union and Finland. Upon the war's outbreak, a total of 41 aircraft were in Finnish service, all of which being powered by the Mercury VIII engine. On 1 December 1939, the D.XXI achieved its first victory with the shooting down of a Soviet Tupolev SB. Against the aircraft of the Soviet Air Force, the Fokker was more evenly matched, and its rugged design with a radial engine and fixed undercarriage made it well suited for Finnish conditions. The performance of the Finnish D.XXI allegedly won the admiration of many Soviet pilots.
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As the Winter War continued and newer models of Soviet fighters appeared, the Fokker D.XXI proved to be increasingly underpowered and too lightly armed (with only four 7.92 mm/.312 in machine guns) to compete; plans to arm the Fokkers with 20 mm cannons were dropped and only one fighter was armed as such (two 20 mm cannons and two 7.92 mm/.312 in machine guns). Another fighter was equipped with retractable landing gear, but due to less than anticipated performance improvement, wasn't continued in the series. The fixed undercarriage lent itself to both unimproved runways and conversion to skis for winter use, both of which were advantages in the Finnish theater.
The Finnish Air Force (FAF or FiAF) (Finnish: Ilmavoimat ("Air Forces"), Swedish: Flygvapnet) ("Air Arm") is one of the branches of the Finnish Defence Forces. Its peacetime tasks are airspace surveillance, identification flights, and production of readiness formations for wartime conditions. The Finnish Air Force was founded on 6 March 1918. Click on Photo right side
Designer Erich Schatzki
First flight 27 March 1936
Retired 1948; Status retired
Primary users Finnish Air Force
Dutch Air Force; Danish Air Force
Number built 148
Length: 8.2 m (26 ft 11 in)'Wingspan: 11 m (36 ft 1 in)
Height: 2.92 m (9 ft 7 in)
Wing area: 16.2 m2 (174 sq ft)
Empty weight: 1,594 kg (3,514 lb)'Gross weight: 1,970 kg (4,343 lb)
Powerplant: 1 × Bristol Mercury VIII 9-cyl. air-cooled radial piston engine, 620 kW (830 hp)
Maximum speed: 460 km/h (286 mph; 248 kn)
Cruise speed: 429 km/h (267 mph; 232 kn)
Never exceed speed: 700 km/h (435 mph; 378 kn)
Range: 930 km (578 mi; 502 nmi)
Service ceiling: 11,350 m (37,240 ft) service ceiling
4 × 7.7 mm (0.303 in) Vickers machine guns
Fokker D.XXI Fighter
The Fokker D.XXI fighter was designed in 1935 by Dutch aircraft manufacturer Fokker in response to requirements laid out by the Royal Netherlands East Indies Army Air Force (Militaire Luchtvaart van het Koninklijk Nederlands-Indisch Leger, ML-KNIL). It has the distinction of being the last fighter aircraft to be developed by Fokker.