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Koolhoven F.K.55 Fighter Prototype (1938)

Authored By Staff Writer | Last Updated: 5/8/2012

Only one example of the Dutch Koolhoven F.K.55 fighter was ever completed before the program was cancelled in full prior to World War 2.

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Specifications for the
Koolhoven F.K.55
Fighter Prototype

Focus Model: Koolhoven F.K.55
Country of Origin: Netherlands
Manufacturer: Koolhoven - Netherlands
Initial Year of Service: 1938
Production Total: 1

Crew: 1

Length: 30.35 ft (9.25 m)
Width: 31.50 ft (9.60 m)
Height: 8.53ft (2.60 m)
Weight (Empty): 3,527 lb (1,600 kg)
Weight (MTOW): 4,850 lb (2,200 kg)

Powerplant: 1 x Lorraine Petrel 12Hrs 12-cylinder Vee engine developing 860 horsepower.

Maximum Speed: 317 mph (510 kmh; 275 kts)
Maximum Range: 528 miles (850 km)
Service Ceiling: 0 ft (0 m; 0.0 miles)
Rate-of-Climb: 2,580 feet-per-minute (786 m/min)

Hardpoints: 0
Armament Suite:
1 x 20mm cannon firing through propeller hub
4 x 7.7mm (0.303) machine guns in wings

F.K.55 - Base Series Designation; single prototype completed in 1938.