Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

In Memoriam

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.

History

In 1914 the Glenn Curtiss Company developed a flying boat. The Curtiss H-4 was developed from this aircraft.

The British RNAS officer John Porte had good connections with Curtiss and he did much research in finding the correct hull. The H-4 had difficulties in taking of especially with full load.
Several hulls were tested, often with one aircraft. [this is the reason why several photos exist of aircraft with the same serial equipped with different hulls. In the end the Curtiss H-8 was developed, which was ordered by the RNAS is rather large quantities.
Development of the hull still continued and also at RNAS Station Felixstowe several tests with modified hulls were done, resulting in the Felixstowe F.1

Curtiss had developed the Curtiss H12, with an improved hull. Also the Curtiss H-12 was used for several tests at RNAS station Felixstowe.

See also Felixstowe F-2A

 

Technical information Curtiss H-12
Dimensions:
Length: 14,02 m Wingspan: 28,34 m
Height: 5,09 m Wing area: 102,9 m2
Weights:
Empty weight: 2880 kg Max. start weight: 4124 kg
Performances:
Max. speed: 149 km/u Rate of climb: - m/min
Range: - km Service ceiling: - m
Miscellaneous:
Engine type: Two Rolls Royce Eagle I rated 250 hp each.
Crew: Three men
Armament: Three machine guns

 

Technical information Felixstowe F.2A
Dimensions:
Length: 14,09 m Wingspan: 29,12 m
Height: 5,33 m Wing area: - m2
Weights:
Empty weight: 3424 kg Max. start weight: 4979 kg
Performances:
Max. speed: 151 km/u Rate of climb: - m/min
Range: - km Service ceiling: - m
Miscellaneous:
Engine type: Two Rolls Royce Eagle VIII rated 345 hp each
Crew: -
Armament: Three machine guns