• Source: Fokker D.IV

The Fokker D.IV was a German fighter biplane of World War I, a development of the D.I.




Development


The Fokker D.IV had a more powerful Mercedes D.III engine, and was the first Fokker front-line design to use ailerons in place of wing warping from the start for roll control.




Operational history


The aircraft was purchased in small numbers (40) by the German Army but it is thought that only 1 aircraft flown by Hans von Keudell of Jasta 1 saw any service on the Western Front all others being relegated to a training role or home defense duties. This was because of a general ban placed on the front-line use of Fokker aircraft on 6 December 1916 due to poor workmanship and a lack of quality control at the factory.
The Swedish Air Force also bought four examples of the type powered by 150 h.p. Benz Bz.III engines., but only 1 was assembled and armed, the remaining 3 being stored in a dismantled state.




Operators


German Empire
Luftstreitkrafte - 40 aircraft.
Sweden
Swedish Air Force - Four aircraft.




Specifications


General characteristics

Crew: one pilot
Length: 6.30 m (21 ft 0 in)
Wingspan: 9.70 m (31 ft 10 in)
Height: 2.45 m (8 ft 0 in)
Wing area: 21.0 m2 (226 sq ft)
Empty weight: 600 kg (1,320 lb)
Gross weight: 840 kg (1,848 lb)
Powerplant: 1 × Mercedes D.III straight-6 , 120 kW (160 hp)
Performance

Maximum speed: 160 km/h (99 mph, 86 kn)
Range: 220 km (137 mi, 119 nmi)
Service ceiling: 5,000 m (16,400 ft)
Rate of climb: 5.6 m/s (1,100 ft/min) 20 minutes to 13,100 Ft.
Armament

2 × fixed, forward-firing 7.92 mm (.312 in) LMG 08/15 machine guns




References



Notes

Bibliography

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