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.

Felixstowe F2A

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

Porte also designed a new hull for the Curtiss H.12. The aircraft, designation Felixstowe F.2, equipped with this new hull and two 345 hp Rolls Royce Eagle engines and the wings and tail of the Curtiss H.12 made its maiden flight in July 1916.

In the end 100 examples were built.

 

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: 6 hrs Service ceiling: - m
Miscellaneous:
Engine type: Two Rolls Royce Eagle VIII rated 345 pk each
Crew: Four men
Armament: Three machine guns

 

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