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.

Friedrichshafen FF.33

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History

At the end 0f 1914 this type was developed from the FF.29, which was considered to be too lightly armed.

The FF.33 was mainly used for patrol and escort duties.

FF.33:
The original version equipped with a Mercedes D.II engine; Six examples built.
FF.33B:
Version in which pilot and observer were reversely seated. The observer had a machine gun available. Equipped with a 160 hp Maybach. Five examples built
FF.33E:
Main production version, 180 examples built. Equipped with a Benz B.III engine; enlarged floats, the float under the tail was omitted; equipped with radio.
FF.33F:
Fighter-Reconnaissance version with smaller wingspan and fuselage. Five examples were built.
FF.33H:
Aerodynamic improved version of FF.33F; duplicated cabling for steering etcetera. Fifty examples were built.
FF.33J:
Aerodynamic improved version of the FF.33E; equipped with a radio transmitter/receiver.
FF.33L:
Main production version of the fighter reconnaissance version. Improved aerodynamics; one fixed machine gun. 130 examples were built.
FF.33S:
Trainer version with double steering.

 

Technical information FF-33J/S
Dimensions:
Length: 9,59 m Wingspan: 14,1 m
Height: - m Wing area: 43,38 m2
Weights:
Empty weight: 948 kg Max. start weight: 1477 kg
Performances:
Max. speed: 136 km/hr Climbing speed: 8 min to 100 m
Cruising speed: - km/hr    
Range: 5,5 hours Service ceiling: - m
Miscellaneous:
Engine type: One Benz Bz.III rated 150 hp
Crew: Two men: one aviator plus one observer/air gunner
Armament: -

 

Technical information FF-33L
Dimensions:
Length: 8,93 m Wingspan: 13,3 m
Height: 3,78 m Wing area: 40,54 m2
Weights:
Empty weight: 939 kg Max. start weight: 1415 kg
Performances:
Max. speed: 140 km/hr Climbing speed: 126 m/min
Cruising speed: - km/hr    
Range: 450 km Service ceiling: - m
Miscellaneous:
Engine type: One Benz Bz.III rated 150 hp
Crew: Two men: one aviator plus one observer/air gunner
Armament: One fixed 7,9 mm Spandau LMG 08/15 machine gun;
One movable 7,9 mm MG 14 Parabellum machine gun

 

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