Aleksandrov-Kalinin AK-1

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The Aleksandrov-Kalinin AK-1 was a prototype airliner built in the Soviet Union in the early 1920s, designed as part of a project by TsAGI to investigate low-cost construction techniques and to verify calculation models for thick-section airfoils. It was a high-wing, strut-braced monoplane of conventional design, powered by a single engine in the nose. Two passengers could be carried in an enclosed cabin in the fuselage, while a separate enclosed cockpit was provided for the pilot, plus a co-pilot or additional passenger. Construction was wooden throughout.

The aircraft was assembled at the GAZ-5 factory during 1923 and flight testing began in February the following year. Money for the project had been donated by the Latvian Sharpshooters, and the AK-1 was named "Латышский стрелок" (Latyshskii Strelok - "Latvian Sharpshooter") in recognition. Following flight tests, it was handed over to Dobrolyot, who used it on a route between Moscow and Kazan. In 1925, it was used in a propaganda flight from Moscow to Beijing and other Chinese cities, flying 7,000 km (4,400 miles) in 38 days.

Operators

;USSR
*Dobrolyot

pecifications

aerospecs
ref=
met or eng?= met

crew=One-two pilots
capacity=2-3 passengers
length m=11.00
length ft=36
length in=1
span m=14.90
span ft=48
span in=11
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=3.80
height ft=12
height in=6
wing area sqm=37.0
wing area sqft=398
swept area sqm=
swept area sqft=
rot area sqm=
rot area sqft=
volume m3=
volume ft3=
aspect ratio=
wing profile=
empty weight kg=1,096
empty weight lb=2,411
gross weight kg=1,685
gross weight lb=3,707
lift kg=
lift lb=

eng1 number=1
eng1 type=Salmson 9
eng1 kw= 130
eng1 hp= 170
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=147
max speed mph=92
max speed mach=
cruise speed kmh=
cruise speed mph=
stall speed kmh=
stall speed mph=
range km=
range miles=
endurance h= 5-6
endurance min=
ceiling m=2,200
ceiling ft=7,200
g limits=
roll rate=
glide ratio=
climb rate ms=1.2
climb rate ftmin=230
sink rate ms=
sink rate ftmin=

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

*
* [http://www.airwar.ru/enc/law1/ak1.html Уголок неба]
* [http://www.ctrl-c.liu.se/misc/ram/ak-1.html Russian Aviation Museum]