Koolhoven F.K.56
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The Koolhoven F.K.56 was a 1930s Dutch basic training monoplane designed and built by
Koolhoven N.V. Koolhoven was an aircraft manufacturer based in Rotterdam, Netherlands. From its conception in 1926 to its destruction in the Blitzkrieg in May 1940, the company remained the second major Dutch aircraft manufacturer (after Fokker). Althoug ...
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Development

The F.K.56 was a low-wing monoplane powered by a 450 hp (336 kW) Wright Whirlwind R-975-E3 radial piston engine. Designed as a basic trainer, the F.K.56 had two seats in tandem for the instructor and pupil under a fully enclosed canopy. The first prototype flew on 30 June 1938 and had fixed conventional landing gear and an inverted gull wing. The second prototype had retractable landing gear while a third prototype was fitted with a straight wing and dual controls. Ten aircraft were ordered by the Netherlands Army based on the design of the third prototype. These ten, including the re-worked first and third prototypes, were all delivered before the German invasion of the Netherlands in May 1940. Earlier in February 1940 the Belgians had ordered twenty F.K.56 basic trainers and seven had been delivered before the rest were destroyed in an air raid on the Waalhaven factory.


Operators

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Belgian Air Force The Belgian Air Component ( nl, Luchtcomponent, french: Composante air) is the air arm of the Belgian Armed Forces, and until January 2002 it was officially known as the Belgian Air Force ( nl, Belgische Luchtmacht; french: Force aƩrienne belg ...
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Specifications


References


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Bibliography

* * {{Koolhoven aircraft FK56 1930s Dutch military trainer aircraft