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.

Martin TT

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History

After having built mainly aircraft with pusher prop, "pushers", Martin switched to types with a pull screw, 'tractors' in 1913.

Work on the Martin T prototype started in August 1912. It was equipped with a Gnome radial engine.

In October 1914 it was succeeded by the Martin TA (Tractor Army), with an engine of 120 hp, designed for a competition of the US Army. However it was destroyed during test flights.

In February 1914 Martin was asked to equip a Model T with dual controls in a tandem cockpit. Three Model Ts were adjusted and another 14 eaxamples were built under the designation Model TT (tractor Trainer).

 

Technical information
Dimensions:
Length: 7,32 m (24 ft 0 in) Wingspan: 11,79 m (33 ft 6 in)
Height: - m  (9 ft 4 in) Wing area: - m2 (379 sq ft)
Weights:
Empty weight: - kg  (1720 lb) Max. start weight: -  kg (1320 lb )
Performances:
Max. speed: - km/hr (96 mph) Climbing speed: - m/min (3500 ft/10 min)
Cruising speed: - km/hr (80 mph)    
Range: - km  (350 miles) Service ceiling: - m
Miscellaneous:
Engine type: One Hall Scott A-5 rated 125 hp
Crew: Two men
Armament: None

 


The Wright Martin TT was one of the first military airplanes of NEIAF. Lots of problems occurred with these aircraft.
Initially they were equipped with floats, but the Hall-Scott engine didn't have enough power for this configuration, so the floats were soon replaced with wheels.

Float plane Glenn Martin TT. (1914-1917); later equipped with a wheel under carriage.
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]
Float plane Glenn Martin TT,  first flight for NEIAF on 06-11-1915
[Enclosed photo from BeeldBank NIMH. Click on photo for ordering information]

 


SerialConstruction nr.Date in serviceDate out of serviceNotes
TT-3    05-09-1916   Ordering date January 1916.
TT-4    05-09-1916   Ordering date January 1916.
TT-5    04-03-1917   Ordered at the beginning of 1917.
TT-6    04-03-1917   Ordered at the beginning of 1917.

 


1/72nd Scale

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 .

SchemeColour nameFS numberBS numberHumbrolXtraColorVallejo Model ColorVallejo Model Air
Standard #1Overall Linen parts: doped     121 X105 70.819 71.028
Engine cowling and struts landing gear Black     21   70.861  
Wooden parts varnish            

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

 


Literature.

Militaire Luchtvaart in Nederlandsch-Indië in beeld. Deel 1 Hugo Hooftman Pag. 5 - 6 1978 Uitgever: Europese Bibliotheek, Zaltbommel
40 Jaar luchtvaart in Indië Gerard Casius & Thijs Postma Pag. 10 - 11 1986 Uitgeverij De Alk, Alkmaar

 

Websites.

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