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.

Van Berkel WB


Van Berkel was commissioned in 1919 to develop a long-range sea scout. The design was based on the Hansa-Brandenburg W.29, an example of which had been interned.
The chief engineer of Van Berkel, ir Von Baumhauer changed de design severely. Van Berkel WB was larger than the W.29 and the engine was more powerful.


Technical Information
Length: 9,35 m Wingspan: 13,55m
Height: 3,55 m Wing area: 32,20m2
Empty weight: 1050 kg Max. start weight: 1494 kg
Max. speed: 175 km/hr Rate of climb:  
Cruising speed: 140 km/hr    
Range: 1500 km Service ceiling:  
Engine type: One Rolls Royce Eagle VIII rated 360 hp
Crew: Two
Armament: Two machine guns
Exact dimensions are not known. It is stated that this aircraft was developed from the Hansa-Brandenburg W.29, one of which was interned during World War One.
Other sources state that it was merely a development from the larger Hansa-Brandenburg W.33