Koolhoven F.K.40

The Koolhoven F.K.40 was a small airliner built in the Netherlands in 1928 for KLM. It was a conventional high-wing cantilever monoplane with enclosed seating for up to six passengers and powered by a single engine in the nose. The fuselage was of welded steel tube construction with a wooden wing skinned in plywood held in place by four bolts to facilitate removal. The cabin was spacious for an aircraft of its size, and was intended to be readily reconfigured for passengers, mail, or freight. Although up to six seats could be fitted, the only F.K.40 built flew with four.

Operational history

This aircraft, registered PH-AES and nicknamed Piet Haas ("Peter Hare"), was operated by KLM until it was sold into private hands in 1936. Shortly thereafter, it was sold to the Spanish Republican Air Force, and was operated as an air ambulance during the Spanish Civil War.

Operators

 Spain

• Spanish Republican Air Force^[1]

Specifications

General characteristics

• Crew: Two pilots
• Capacity: 4-6 passengers
• Length: 11.50 m (37 ft 9 in)
• Wingspan: 14.50 m (47 ft 7 in)
• Empty weight: 1,520 kg (3,340 lb)
• Gross weight: 1,900 kg (4,180 lb)
• Powerplant: 1 × Gnome-Rhone Titan, 170 kW (230 hp)

Performance

• Maximum speed: 185 km/h (115 mph)
• Service ceiling: 3,800 m (12,500 ft)
• Rate of climb: 1.7 m/s (335 ft/min)

See also

Related lists

• List of aircraft of the Spanish Republican Air Force

References

Wikimedia Commons has media related to Koolhoven Aircraft.

Further reading

• Taylor, Michael J. H. (1989). Jane's Encyclopedia of Aviation. London: Studio Editions. p. 561. 
• - 0211.html "The Koolhoven F.K.40". Flight: 203. 14 January 1930. Retrieved 2008-09-12. 

External links

• Den Ouden, Alex. "The aircraft designer Frederik (Frits) Koolhoven". Retrieved 2008-09-12. 
• Koolhoven Aeroplanes Foundation
• Уголок неба