NVI F.K.31
| F.K.31 | |
|---|---|
| 300px | |
| Role | Reconnaissance-fighter |
| Manufacturer | Nationale Vliegtuig Industrie |
| First flight | June 1923 |
| Introduction | 1925 |
| Retired | 1927 |
| Primary user | Finnish Air Force |
| Number built | 17 |
NVI F.K.31 was a Dutch designed parasol wing two seat reconnaissance-fighter, which was developed in the 1920s by Frederick Koolhoven. The aircraft saw some service in the Finnish Air Force.
History
The F.K.31 became Koolhoven's first design for the N.V. Nationale Vliegtuig Industrie ("National Aircraft Industry") a two-seat scout and fighter. Its prototype became the sensation of the Paris Air Salon of 1922. However, the production of the F.K.31 met with many difficulties, forcing the N.V. Nationale Vliegtuig Industrie to close down.
Use in Finland
The Finnish Air Force used twelve F.K.31s between 1925-27. The aircraft had been purchased while the development still was being carried out. The Finnish pilots disliked the aircraft and it has been considered the worst aircraft of the FAF. The F.K.31s flew for fewer than 6 hours in the Finnish Air Force.
Operators
Specifications
Data from Green & Swanborough (1997) p.461
General characteristics
- Crew: Two
- Length: 7.8 m (25 ft 7 in)
- Wingspan: 13.7 m (44 ft 11 in)
- Height: 3.4 m (11 ft 2 in)
- Wing area: 27.2 m2 (293 sq ft)
- Empty weight: 1,040 kg (2,293 lb)
- Gross weight: 1,800 kg (3,968 lb)
- Powerplant: 1 × Bristol Jupiter IV nine-cylinder radial, 310 kW (420 hp)
- Propellers: 2-bladed
Performance
- Maximum speed: 255 km/h (158 mph; 138 kn) at 4,000 m (13,000 ft)
- Endurance: 6 hr
Armament
- Guns: One or two fixed forward firing machine guns, one more on mounting in rear cockpit
References
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