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Klaas Willem Jonker
(Wilko)
† 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.

Thulin K, KA and LA

Published: Tuesday, 14 June 2011 13:42 | Print | | Hits: 13838

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

 


During 1917 twelve single seat fighters of the type Thulin K were ordered at he Swedish AB Enoch Thulins Aeroplanfabrik. These small aircraft were armed with two machine-guns.

 

Also, three examples of the twoseat version, The Thulin KA, of this fighter were ordered for training purposes.

Furthermore ten Thulin LA training aircraft were purchased to succeed the Farman. In practice, the aircraft did not comply, mainly because of the unreliable engines.

 

Thulin K

Jachtvliegtuig Thulin K-jagere (1917-1920) op Soesterberg in 1917
Thulin K fighter, D1 at Soesterberg in 1917.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Jachtvliegtuig # tweepersoonsjager Thulin K, (1917-1922), tweezitter
Thulin K, serial D3
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
MVKde Kooy Vliegbedrijf in 1919. Een Thulin K jager klaar voor de start.
A Thulin K ready for take-of in 1919 at naval Air station De Kooy.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Thulin K reg. D1 van de Koninklijke Marine op Soesterberg, zomer 1917. Romp en cockpit, links achter.
Thulin K, serial D1 of the Dutch Navy at Soesterberg, summer 1917.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Bekleders op het Marinevliegkamp De Mok op Texel aan het werk met een Thulin jager
Coater at naval air Station De Mok at Texel working on a Thulin.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Thulin K reg. D1 van de Koninklijke Marine op Soesterberg, zomer 1917. Motor, rechts voor.
Thulin K serial D1 of the Dutch navy at Soesterberg, summer 1917.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]

 

Thulin LA

Lesvliegtuig Thulin LA (1918-1923) op MVK De Kooy, 1919
Trainer Thulin LA at naval air station De Kooy, 1919.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Lesvliegtuig # schoolvliegtuig 1e vliegopleiding Thulin LA, (1918-1923)
Trainer Thulin LA.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Lesvliegtuig Thulin LA (1918-1923) landt op het Marinevliegkamp De Mok, Texel
Trainer Thulin LA landing on naval air station De Mok, Texel.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Jachtvliegtuig Thulin K (1917-1922)
trainer Thulin LA.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Een Thulin
A Thulin used for taxiing practice on its nose.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]

 


Thulin K

Serial
Serial
Constr. nr.
Constr. nr.
Date in service
Date in service
Date out of service
Date out of service
Notes
notes
D-1 41 07-1917 1920 Entered service in July. 1917. Written off in 1920.
D-2 42 21-08-1917 1920 Written off in 1920.
D-3 43 21-08-1917 15-01-1920 Crashed near naval air station De Kooy. Written off.
D-4 44 1917 1920 Written off in 1920.
D-5 45 1917 1920 Written off in 1920.
D-6 49 1917 1920 Written off in 1920.
D-7 50 1917 1920 Written off in 1920.
D-8 51 1917 1920 Written off in 1920.
D-9 52 1917 1920 Written off in 1920.
D-10 53 1917 1920 Written off in 1920.
D-11   1919 1919 Used for spare parts.
D-12   1919 1919 Used for spare parts.

 

Thulin KA

SerialConstr. nr.Date in serviceDate out of serviceNotes
B-1 46 09-1917 1922 Entered service in September 1917. Written off in 1922.
B-2 47 12-1917 1922 Entered service in December 1917. Written off in 1922.
B-3 48 12-1917 22-10-1919 Entered service in December 1917. Written off.

 

Thulin LA

Serial
Serial
Constr. nr.
Constr. nr.
Date in service
Date in service
Date out of service
Date out of service
Notes
notes
C-1   11-1918 22-04-1919 Entered service in November 1918. Crashed near naval air station De Kooy. Written off.
C-2   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-3   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-4   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-5   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-6   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-7   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-8   11-1918 12-1923 Entered service in November 1918. Written off in December 1923.
C-9   11-1918 12-1923 Entered service in November 1918. Written off in 1923.
C-10   11-1918 12-1923 Entered service in November 1918. Written off in 1923.

 


1/72nd Scale

Kits

  • Omega
    • Kit 72111: a resin kit of a Thulin K with decals for a Dutch aircraft
    • Kit 72078: a resin kit of a Thulin LA.

Modelling add-on

  • --
    • Set --: --

Decals

  • --
    • Set --: --

1/48th Scale

Kits

  • Omega
    • Kit 48010: a resin kit of a Swedish Thulin K
    • Kit 48011: a resin kit of a Thulin K with decals for a Dutch aircraft

Modelling add-on

  • --
    • Set --: --.

Decals

  • --
    • Set --: ---.

 


The linen parts of the aircraft were varnished, as was usual at that time.
The wooden pieces leading to the hood were also painted white.
The metal hood and spinner were treated against corrosion by a coating. Judging by photographs, this was not a clear coat, but possibly treated with a coloured varnish.
The colour is fact very similar to the rest of the unit and is clearly not white (painted metal).

SchemeColour nameFS-numberBS-numberHumbrolXtraColorVallejo Model ColorVallejo Model Air
Standard #1Linen parts Doped linen     121 X105 70.819 71.028
Metal and wooden parts Varnish            

Check www.paint4models.com for an extensive conversion table with lots of colour and paint systems.

 

Color schema Thulin K
Colour Scheme Thulin K.

 


Literature.

Zestig jaar Marineluchtvaartdienst in Beeld. Hugo Hooftman Pag. 10; 11 1977 Uitgever Europese Bibliotheek, Zaltbommel
Nederlandse Marinevliegtuigen Thijs Postma & Nico Geldhof Pag. 8 1978 Uitgever Omniboek, 's Gravenhage
70 Jaar Marine-LuchtvaartDienst Nico Geldhof Pag. 11; 17 1987 Uitgeverij Eisma b.v., Leeuwarden
Vliegen voor de Vloot: 70 jaar Marineluchtvaartdienst Harm J. Hazewinkel Pag. 8 1987 Uitgever Rebo Produkties, Sassenheim
Camouflage en Kentekens J.Greuter e.a.   1997 Bonneville – Bergen (NH)
85 JAAR Marineluchtvaartdienst in beeld: Van Farman tot NH 90 Helikopter Peter Korbee Pag. 14 - 15 2002 Uitgever Korbee MLD Promotie, Valkenburg

 

Websites.

Special thanks to mr. J. den Das for corrections.