Koolhoven F.K.49

Koolhoven F.K.49

__NOTOC__

The Koolhoven F.K.49 was a photographic survey aircraft built in the Netherlands in 1935. It was a high-wing cantilever monoplane of conventional design with twin engines carried in nacelles on the leading edges. Usually fitted with fixed, tailwheel undercarriage, a floatplane version was also developed. The aircraft carried an onboard darkroom.

Three examples were purchased by the Dutch Army, but only one of these was ever delivered, the other two were destroyed before completion when the Koolhoven factory was bombed by Germany on 10 May 1940. Others were purchased in small numbers by Turkey, Hungary, and Finland.

Operational history

The sole example delivered to the Dutch Army was eventually used as a general utility type, serving as an air ambulance, parachute trainer, and general transport. The Turkish F.K.49A, powered by Fairchild Ranger engines, had a short service life before the engines caught fire in flight, resulting in a fatal crash. The Finnish Coast Guard (Merivartiolaitos) ordered two examples with floats and powered by Hirth engines. The first of these was delivered via Sweden in 1940, and gave continuous engine trouble; it was withdrawn from service after only 18 hours of flight time, and the second one ordered was never delivered.

Variants

* F.K.49
* F.K.49A - enlarged version with Ranger engines for Turkish Air Force

Operators

* Netherlands
** Luchtvaart Afdeling (3 ordered, 1 delivered)
* Finland
** Finnish Coast Guard (2 ordered, 1 delivered)
* Hungary
** HARITA Kitaati/Genel Komutanligi (Survey and Mapping Command) (1)
* Turkey
** Turkish Air Force (1)

pecifications

aerospecs
ref=
met or eng?= met

crew=Two
capacity=
length m=11.70
length ft=38
length in=5
span m=16.00
span ft=52
span in=6
swept m=
swept ft=
swept in=
rot number=
rot dia m=
rot dia ft=
rot dia in=
dia m=
dia ft=
dia in=
width m=
width ft=
width in=
height m=3.00
height ft=9
height in=10
wing area sqm=35.0
wing area sqft=377
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
wing profile=
empty weight kg=1,330
empty weight lb=2,900
gross weight kg=2,120
gross weight lb=4,660
lift kg=
lift lb=

eng1 number=2
eng1 type=de Havilland Gipsy Major
eng1 kw= 100
eng1 hp= 130
eng1 kn=
eng1 lbf=
eng1 kn-ab=
eng1 lbf-ab=
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=
eng2 kn=
eng2 lbf=
eng2 kn-ab=
eng2 lbf-ab=

max speed kmh=202
max speed mph=126
max speed mach=
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=
range km=790
range miles=490
endurance h=
endurance min=
ceiling m=4,300
ceiling ft=14,100
g limits=
roll rate=
glide ratio=
climb rate ms=
climb rate ftmin=
sink rate ms=
sink rate ftmin=

armament1=
armament2=
armament3=
armament4=
armament5=
armament6= aircontent
see also=
related=
similar aircraft=
lists=

References

*
*
* [http://www.koolhoven.com/history/airplanes/koolhoven/ Koolhoven Aeroplanes Foundation]
* [http://www.airwar.ru/enc/spyww2/fk49.html Уголок неба]


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