Keleher Lark

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The Keleher JK-1 Lark was a single-seat aerobatic sport aircraft designed in the United States in the early 1960s and later marketed for home-building. It was a conventional, mid-wing strut-braced monoplane with fixed tailwheel undercarriage. The fuselage and empennage were of welded steel tube construction, skinned in fabric. The wings were wooden and also covered in fabric. The design was revised in 1963, with the new version designated Lark 1B. Plans for this version were offered for sale from 1968 and were still on sale into the 1980s. [cite book |title=Jane's All the World's Aircraft 1984-85 |publisher=Jane's Publishing |location=London |pages=597 ] An example of the 1B won the "Outstanding Workmanship" award for L. C. Koetkemeyer at the 1968 EAA Fly-in. [cite journal| title=Rockford 1968 |journal=Flight |year=1968 |month= |pages= |url=http://www.flightglobal.com/pdfarchive/view/1968/1968%20-%201762.html |accessdate=2008-09-01]

As of 2008, six remain registered in the United States. [ [http://registry.faa.gov/aircraftinquiry/acftinqSQL.asp?striptxt=&mfrtxt=keleher&cmndfind.x=0&cmndfind.y=0&cmndfind=submit&modeltxt= FAA registration enquiry] ]

pecifications

aerospecs
ref=
met or eng?= eng

crew=One pilot
capacity=
length m=5.18
length ft=17
length in=0
span m=7.01
span ft=23
span in=0
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=1.65
height ft=5
height in=5
wing area sqm=7.5
wing area sqft=81
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
wing profile=
empty weight kg=249
empty weight lb=550
gross weight kg=387
gross weight lb=855
lift kg=
lift lb=

eng1 number=1
eng1 type=Various flat-4 engines
eng1 kw= 49
eng1 hp= 65
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=
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max speed kmh=212
max speed mph=132
max speed mach=
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=
range km=
range miles=
endurance h=
endurance min=
ceiling m=5,950
ceiling ft=19,500
g limits=
roll rate=
glide ratio=
climb rate ms=4.6
climb rate ftmin=900
sink rate ms=
sink rate ftmin=

armament1=
armament2=
armament3=
armament4=
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armament6= aircontent
see also=
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References

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External links

* [http://www.rraskehelerlark.blogspot.com/ Construction of a Keleher Lark]