Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

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In Memoriam

Klaas Willem Jonker
(Wilko)
† April 30, 2018

On Monday 30 April 2018, Wilko Jonker died after a long illness at the age of 58. He leaves behind a wife and two children. The Dutch military aviation and plastic modeling were his hobby and on this website he shared all the knowledge he has collected over the years. His hobby has been able to distract him from the persistent disease in his body until the last week of his life. The contacts with other hobbyists were a major support for him.

This website will be maintained by different people for as long as possible, so that other enthusiasts can continue to benefit from extensive content.

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Sunday, 25 August 2019 04:43

Koolhoven FK.46

History

The Koolhoven Fk46 was a two seat trainer and sports plane. The first prototype, a wooden biplane with open cockpits was built in 1933 and made the first flight in the autumn 1933. It was designed so that it can not be exaggerated, a convenient feature for training aircraft.

The aircraft was extensively tested by the NLS (National Aviation School) and eventually purchased, followed by an order for five aircraft. These had a fuselage of steel tube with linen and a different engine, a DeHavilland Gipsy Major I. The bonnet was a different shape. Further, a plexi glass was cockpit hood is placed over both cockpits, whereby also the rear end of the hull was increased.

 

Technical information
Dimensions:
Length: 7,1 m Wingspan: 8 m
Height: - m Wing area: - m2
Weights:
Empty weight: 850 kg Max. start weight: - kg
Performances:
Max. speed: 175 km/hr Climbing speed: - m/min
Cruising speed: - km/hr    
Range: - km Service ceiling: - m
Miscellaneous:
Engine type: One De Havilland Gipsy Major I rated 130 hp
Crew: Two
Armament: None