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.

Martin R


The (Wright) Martin R was in fact the land version of the earlier Martin S Hydro.
About 27 of them were built, of which 14 after the merge of the Wright and Martin factories to Wright-Martin.


Technical information
Length: 8,23 m Wingspan: 14,15 m
Height: 3,5 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 Hall-Scott A-5 rated 125 hp.
Crew: Two men: one aviator plus one observer/air gunner
Armament: None