Dutch Modelling and Aviation

In Memoriam

Klaas Willem Jonker
(Wilko)
† April 30, 2018

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

Hansa-Brandenburg W.12

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History

The Hansa-brandenburg W.12 was developed in 1916 by Ernst Heinkel. It was a two-seat fighter-scout, which made its first flight in January 1917. It was a very manoeuvrable aircraft.

The fuselage was made of plywood. Noteworthy was the downward rudder, thus giving the observer a free field to fire.

The aircraft was produced with either a 160 hp Mercedes D.III as well as a 150 hp Benz Bz.II.

The first series of the production suffered from problems with longitudinal stability. From aircraft with construction-number 2000 and on this was solved by extending the fuselage.

 

Technical information
Dimensions:
Length: 9,47 m Wingspan: 11,25 m
Height: 3,23 m Wing area: 35 m2
Weights:
Empty weight: 937 kg Max. start weight: 1314 kg
Performances:
Max. speed: 150 km/hr Climbing speed: - m/min
Cruising speed: - km/hr    
Range: - km Service ceiling: - m
Miscellaneous:
Engine type: One Mercedes D-IIIa rated 180 hp
Crew: To me: one aviator plus one observer/air gunner
Armament: One or two fixed forward firing 7,9 mm Spandau LMG 08/15 plus one moveable 7,9 mm Parabellum MG 14 machine gun.

 

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