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.

Douglas DB-7/A20 Boston

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History

Text about the development.

Versions.

Text about versions.

 

Technical information Douglas A-20A (18 sq NEIAF)
Dimensions:
Length: 14,48 m Wingspan: 18,69 m
Height: 5,36 m Wing area: 43,11 m2
Weights:
Empty weight: - kg Max. start weight: - kg
Performances:
Max. speed: 515 km/hr Rate of climb: 610 m/min
Cruising speed: 439 km/hr    
Range: 845 km Service ceiling: 7468 m
Miscellaneous:
Engine type: Two Wright Cyclone R-2600-11 rated 1600 each.
Crew: -
Armament: Seven 7.7 mm machine guns (four fixed forward firing machine guns; two movable in dorsal turret; one in ventral turret; Maximum of 907 kg bombs.

 

Technical information Douglas DB-7B Boston III (RNlNAS = MLD)
Dimensions:
Length: 14,48 m Wingspan: 18,68 m
Height: 5,36 m Wing area: 43,11 m2
Weights:
Empty weight: - kg Max. start weight: 9217 kg
Performances:
Max. speed: 515 km/hr Rate of climb: 610 m/min
Cruising speed: 451 km/hr    
Range: 844 km Service ceiling: 7468 m
Miscellaneous:
Engine type: Two Wright Cyclone R-2600 A5B rated 1600 each.
Crew: -
Armament: -

 

Technical information Douglas DB-7C (A-20C)-2-DO Boston III (RNlNAS = MLD)
Dimensions:
Length: 14,42 m Wingspan: 18,68 m
Height: 5,36 m Wing area: 43,11 m2
Weights:
Empty weight: 6945 kg Max. start weight: 9752 kg
Performances:
Max. speed: 552 km/hr Rate of climb: - m/min
Cruising speed: 439 km/hr    
Range: 3701 km Service ceiling: 7468 m
Miscellaneous:
Engine type: Two Wright Cyclone R-1820-84B rated 1525 hp each.
Crew: -
Armament: -

 

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