Letov Š-39

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The Letov Š-39 was a sport aircraft produced in Czechoslovakia during the 1930s. It was a conventional, parasol-wing monoplane with fixed tailskid undercarriage, and seating for the pilot and passenger in tandem, open cockpits. Because the cabane struts were very short, and the wing therefore placed very close to the top of the fuselage, the cockpits had the unusual arrangement of the passenger's being in front of the wing while the pilot's was behind it. The outer half of each wing was fitted with fixed slats along the leading edge. An initial batch of 23 machines was built for use by Czech aeroclubs. These were followed by batches of aircraft with alternative powerplants.

Variants

* Š-39 - prototype with Orion LL-50 engine followed by production batch with Walter Polaris engines
* Š-139 - batch with Pobjoy R engine and Townend ring
* Š-239 - batch with Walter Minor 4 engine

pecifications (Š-39)

aerospecs
ref=
met or eng?= met

crew=One pilot
capacity=1 passenger
length m=6.14
length ft=20
length in=2
span m=10.00
span ft=32
span in=10
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=
height ft=
height in=
wing area sqm=14.0
wing area sqft=151
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
wing profile=
empty weight kg=315
empty weight lb=693
gross weight kg=515
gross weight lb=1,133
lift kg=
lift lb=

eng1 number=1
eng1 type=Walter Polaris
eng1 kw= 41
eng1 hp= 55
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 kn-ab=
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max speed kmh=150
max speed mph=94
max speed mach=
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=
range km=480
range miles=300
endurance h=
endurance min=
ceiling m=3,300
ceiling ft=10,800
g limits=
roll rate=
glide ratio=
climb rate ms=2.1
climb rate ftmin=410
sink rate ms=
sink rate ftmin=

armament1=
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armament6= aircontent
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References

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