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.

Nieuport 21 & 23

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History

The Nieuport 17 was e development of the Nieuport 11 and was equipped with enlarged wings and a more powerful engine.
The Nieuport 16 was a first attempt to resolve the shortcomings of the Nieuport 11, especially the rather weak lower wing. It was equipped with a more powerful engine, but this resulted in a higher wing load and less maneuverability.
The Nieuport 17 referred more to the principles of the Nieuport 11, but had new designed strengthened wings with larger area. The lower wing proofed to tend to twist at higher speeds just as was the case with the Nieuport 11.
It was equipped with a 120 hp Le Rhône engine. Later the Nieuport 17Bis was released with a 130 hp engine.
The Nieuport 17, which made it maiden flight in January 1916, was armed with a fixed machine gun mounted on the upper wing. It climbed as fast and was as maneuverable as the Nieuport 11.

Technical information Nieuport 17
Dimensions:
Length: 5,97 m Wing span: 8,19 m
Heigth: 2,44  m Vleugeloppervlak: - m2
Weights:
Empty weight 374,2 kg Max. weight: 560,19 kg
Performances:
Max. speed: 170,6 km/u (op 1 981 m) Cruising speed: - km/u
Climbing speed 19 min 30 sec naar 4000 m    
Service ceiling 5349 m Range: 249 km
Miscellaneous:
Engine type: One Le Rhône 9 rated 120 hp
Crew: One pilot
Armament: one fixed forward firing Vickers or Lewis machine gun

 

The Nieuport 21 was intended as a (unarmed) trainer and (armed) escort version of the Nieuport 17. It was equipped with a 80 hp Le Rhône 9C engine.
The Nieuport 23 differed in some details regarding the synchronization of the machine gun and re-arrangement of the fuel and oil tanks.

 

Technical information Nieuport 21
Dimensions:
Length: 5,8 m Wing span: 8,16 m
Height: - m Wing area: - m2
Weights:
Empty Weight: - kg Max. start weight: - kg
Performances:
Max. speed: - km/u Cruising speed: - km/u
Climbing speed: - m/min    
Service ceiling: - m Range: - km
Miscellaneous:
Engine type: One Le Rhône 9C rated 80 hp
Crew: one aviator
Armament: -

 

Technical information Nieuport 23
Dimensions:
Length: 5,8 m Wing span: 8,16 m
Height: - m Wing area: 14,75 m2
Weights:
Empty Weight: - kg Max. weight: - kg
Performances:
Max. speed: - km/u Cruising speed: - km/u
Climbing speed: - m/min    
Service ceiling: - m Range: - km
Miscellaneous:
Engine type: One Le Rhône 120 rated 120 hp
Crew: One aviator
Armament: -

 

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