Thulin K, KA and LA

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.

Details: Written by: K.W. Jonker; Published: 14 June 2011; Created: 14 June 2011; Last Updated: 03 November 2017; Hits: 14601

Article Index

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History

Thulin K

The Thulin K was designed in 1916 by Dr. Thulin of the Swedish AB Thulinverken.
It was a single seat fighter.
The shoulder plane had a wooden construction and no flaps. It had a Thulin A rotary engine of 90 horsepower. This was derived from the French Gnome rotary engine.
Two examples were built for Swedish Flygvapnet and twelve examples for the Dutch Navy.

Also a two-seat version was built, in which the instructor and the pupil sat in tandem.
Three examples were built for the Dutch Navy.

Thulin LA

The Thulin LA, a biplane trainer, was designed in 1917 and was based on the earlier Thulin E and Thulin L. These were derived from the Albatros B.I

The Thulin LA had a custom fuselage, empennage and another engine.

Fifteen examples were built, of which ten of the Dutch Navy.

Technical information Thulin LA
Dimensions:
Length:	6,60 m	Wingspan:	11,5 m
Height	3,4	Wing area:	36 m²
Weight:
Empty weight:	- kg	Max. Start weight	- kg
Performance:
Max. Speed:	120 km/hr	Climbing speed:	- m/min
Range:	- km	Service ceiling:	- m
Miscellaneous:
Engine type:	One Thulin A rated 80 hp
Crew:	Two men: one instructor plus one pupil
Armament:	None

Technical information Thulin K (two seat)
Dimensions:
Length:	6,6 m	Wingspan:	11,55 m
Height	2,83 m	Wing area:	- m²
Weight:
Empty weight:	- kg	Max. Start weight	- kg
Performance:
Max. Speed:	135 km/hr	Climbing speed:	- m/min
Range:	- km	Service ceiling:	- m
Miscellaneous:
Engine type:	One Thulin A rated 80 hp
Crew:	Two men: one instructor plus one pupil
Armament:	None

Technical information Thulin K
Dimensions:
Length:	6,6 m	Wingspan:	11,55 m
Height	2,83 m	Wing area:	- m²
Weight:
Empty weight:	522 kg	Max. Start weight	- kg
Performance:
Max. Speed:	135 km/hr	Climbing speed:	- m/min
Range:	- km	Service ceiling:	- m
Miscellaneous:
Engine type:	One Thulin A rated 80 hp
Crew:	One aviator
Armament:	Eventually one machine gun