Fairchild KR-34

Fairchild KR-34

__NOTOC__ Infobox Aircraft
name=Fairchild KR-34


caption=
type=Utility biplane
manufacturer=Kreider-Reisner Aircraft
Fairchild Aircraft
designer=
first flight=1928
introduced=
retired=
status=
primary user=
more users=
produced=
number built=
variants with their own articles=

The Kreider-Reisner Challenger (later the Fairchild KR series) was an American utility biplane aircraft designed and produced by the Kreider-Reisner Aircraft Company, which was later taken over by the Fairchild Aircraft Company.

Development

The C-2 Challenger was the first commercial aircraft developed by the Kreider-Reisner Aircraft Company. The Challenger was a conventional mixed-construction biplane with a fixed tailskid landing gear. It had two open tandem cockpits for a pilot (at the rear), and passenger (forward) and was powered by a 90 hp (67 kW) Curtiss OX-5 inline engine. A number of variants were built designated the C-3 Challenger and C-4 Challenger which had detailed differences and different engines fitted. Late in 1928 the company introduced a new and slightly smaller design designated the C-6 Challenger.

In 1929 the company was bought by the Fairchild Aircraft Company who continued the production of the C-4 as the Fairchild KR-34 and the C-6 as the Fairchild KR-21. Although not built by Fairchild the C-2 was re-designated the Fairchild KR-31.

To act as an engine test-bed a KR-21 was modified to use a Fairchild 3-690 engine (later named Ranger) and changes were made to the wing and landing-gear geometry. The modified aircraft was known as the Fairchild KR-125. In 1931 a similar aircraft without the geometry changes but with a Ranger engine was sold under the designation KR-135.

Variants

;C-2 Challenger:Initial production version, later KR-31.;C-3 Challenger:C-2 with detail and engine changes.;C-4 Challenger:C-2 with detail and engine changes, later KR-34;C-6 Challenger:Smaller version of C-2, later KR-21.;KR-21:Re-designation of the C-6.;KR-31:Re-designation of the C-2.;KR-35:Re-designation of the C-4.;KR-125:One KR-21 modified to an engine test bed for the Fairchild 6-390.;KR-135:Production version of KR-21 with in-line engine.

pecifications (KR-34)

aerospecs
ref=The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 1674
met or eng?= eng

crew=2
capacity=
length m=7.06
length ft=23
length in=2
span m=9.17
span ft=30
span in=1
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=2.82
height ft=9
height in=3
wing area sqm=26.48
wing area sqft=285
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
empty weight kg=691
empty weight lb=1524
gross weight kg=1074
gross weight lb=2368
lift kg=
lift lb=

eng1 number=1
eng1 type=Wright J-6 Whirlwind Five 5-cylinder radial piston engine
eng1 kw= 123
eng1 hp= 165
eng1 kn=
eng1 lbf=
eng1 kn-ab=
eng1 lbf-ab=
eng2 number=
eng2 type=
eng2 kw=
eng2 hp=
eng2 kn=
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eng2 lbf-ab=

max speed kmh=193
max speed mph=120
max speed mach=
cruise speed kmh=
cruise speed mph=
range km=821
range miles=510
endurance h=
endurance min=
ceiling m=4265
ceiling ft=14,000
glide ratio=
climb rate ms=
climb rate ftmin=
sink rate ms=
sink rate ftmin=

armament1=
armament2=
armament3=
armament4=
armament5=
armament6=

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References

*
* The Illustrated Encyclopedia of Aircraft (Part Work 1982-1985), 1985, Orbis Publishing, Page 1674


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