Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

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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.

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Friday, 22 November 2019 12:03

RAF SE.5A

History

The S.E.5 (Scout Experimental 5), was designed for the new 150 hp Hispano-Suiza 8a V8 engine. The prototype made its maiden flight in November 1916. Due to errors in the design of the wing the first two prototypes crashed. The third prototype was modified and soon production started.

The aircraft proofed to be stable, manoeuvrable and strong. It was pone of the fastest aircraft of its time, though it appeared, in comparison to his contemporary, the Sopwith Camel, the lesser in a dog fight.

The S.E.5 had a fixed synchronized  .303 inch Vickers machine gun on the nose plus a Lewis machine gun on the upper wing. Initially there were many problems with the synchronization system, so the Lewis gun was very appreciated by the pilots.

Versions

  • S.E.5: The original version, 77 were built.
  • S.E.5a: Equipped with the improved 200 hp Hispano-Suiza 8B and often a four blade propeller. 5265 examples were built at six plants.
    Some were modified to two seat trainers. As the Hispano-Suiza 8B engine suffered technical problems and difficulties with delivery. Replacing the engine with a 200 hp Wolseley Viper, a licensed version of the Hispano-Suiza 8a solved the engine problems, so this engine was used as standard engine for the S.E.5A.
  • S.E.5b: a more streamlined version with wings of unequal span. Only one example built for research.

 

Technical information
Dimensions:
Length: 6,38 m Wingspan: 8,12 m
Height: 2,9 m Wing area: 22,67 m2
Weights:
Empty weight: 635 kg Max. start weight: 887 kg
Performances:
Max. speed: 220 km/hr Climbing speed: - m/min
Cruising speed: - km/hr    
Range: 483 km or 3 hours Service ceiling: 6705 m
Miscellaneous:
Engine type: One Wolseley W4A Viper rated 200 hp
Crew: One aviator
Armament: One forward firing 7.7 mm Vickers machine gun plus one movable Lewis machine gun; Four bombs of 18 kg each.