Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

In Memoriam

Klaas Willem Jonker
† 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.


The Fokker DC-I was a development of the Fokker C.IV, with a smaller wingspan, but further identical.

The smaller wingspan was necessary to improve the manoeuvrability because of the fighter function of the type. The D.C.I climbed in 6 minutes to a height of 3000 m, whereas the C.Iv needed 16 minutes for the same height. It was equipped with a Napier Lion rated 450 hp and only ten examples were built for NEIAF. These aircraft are the only examples built of this type.

Spain was interested to built the aircraft under licence, but preferred the Fokker C.IV.


Technical information
Length: 9,3 m Wingspan: 11,45 m
Height: 3,4 m Wing area: - m2
Empty weight: - kg Max. start weight: . kg
Max. speed: - km/hr Climbing speed: m/min
Cruising speed: - km/hr    
Range: - km Service ceiling: - m
Engine type: One Napier Lion rated 450 hp
Crew: Two men
Armament: -