Koolhoven F.K.50

__NOTOC__ Infobox Aircraft
name=Koolhoven F.K.50


caption=
type=Eight-passenger light transport monoplane
manufacturer=N.V.Koolhoven
designer=Fritz Koolhoven
first flight=1935
introduced=1935
retired=1962
status=
primary user=Swiss Alpar
more users=
produced=
number built=3
variants with their own articles=The Koolhoven F.K.50 was a 1930s Dutch eight-passenger light transport monoplane designed and built by Koolhoven.

Development

The F.K.50 was designed to meet a requirement from the Swiss airline Swiss Alpar for a light transport capable of operating in Switzerland. The F.K.50 was a cantilver high-wing cabin monoplane with a fixed wide track tailwheel landing gear. It was powered by two Pratt & Whitney Wasp Junior engines and had a conventional single fin and rudder. The first of two aircraft first flew on the 18 September 1935 and the second flew in March 1936. A third aircraft was built in 1938 with a re-designed tail unit with twin vertical tail surfaces. A bomber variant (the F.K.50B) was proposed but never built.

Operational history

The three aircraft operated a regular service between Swiss destinations and onwards to Lyons and Marseilles and charter flights to Paris and London. One aircraft remained in flying condition until is crashed in 1962.

Variants

;F.K.50:Production variants, three built (two with single vertical tail and one with twin vertical tails);F.K.50B:Proposed Bomber variant, not built.

Operators

;SUI
*Swiss Alpar

pecifications (F.K.50)

aerospecs
ref=cite book |last= |first= |authorlink= |coauthors= |title= The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985)|year= |publisher= Orbis Publishing|location= |issn=|pages= 2260
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crew=2
capacity=eight passengers
length m=14.30
length ft=46
length in=11
span m=17.70
span ft=58
span in=0¾
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gross weight kg=4250
gross weight lb=9369
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eng1 number=2
eng1 type=Pratt & Whitney Wasp Junior IIIB radial engines
eng1 kw= 303
eng1 hp= 406
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max speed kmh=295
max speed mph=183
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References

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