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The Ivchenko AI-26 is a seven-cylinder air-cooled radial engine used in early Soviet helicopters and later used in light utility aircraft.
The Ivchenko AI-26 is a seven-cylinder air-cooled radial engine used in early Soviet helicopters and later used in light utility aircraft.
Design and development
The AI-26 engine was designed by A.G Ivchenko in 1945 with the early designation M-26, later the designation was changed to AI-26. Like theShvetsov ASh-21
The Shvetsov ASh-21 is a seven-cylinder single-row air-cooled radial aero engine.
Design and development
The ASh-21 is basically a single-row version of the Shvetsov ASh-82. The ASh-21 also incorporates a number of parts from the ASh-62 rad ...
which is basically one bank of cylinders from the Shvetsov ASh-82
The Shvetsov ASh-82 (M-82) is a Soviet 14-cylinder, two-row, air-cooled radial aircraft engine developed from the Shvetsov M-62, which in turn was the result of development of the M-25, a licensed version of the Wright R-1820 Cyclone.
Design ...
, the AI-26 was also influenced by the ASh-82. The AI-26 retained the bore, stroke and displacement of the ASh-21 while incorporating new features peculiar to its role. This similarity allowed the AI-26 to use the same production jigs as the ASh-21 and ASh-82 which reduced costs and simplified production.
The engine was envisioned as a helicopter engine, but the early test models lacked the necessary equipment to facilitate this role, such as an auxiliary cooling fan, reduction gears and clutch. The GR suffix means ''"Gelikopter"'', or helicopter. Engine testing was completed by early 1946 and by 1947 helicopter testing had begun. In late 1947 the decision to mass-produce the engine was made and production commenced at factory No.478 located in Zaporizhia
Zaporizhzhia, formerly known as Aleksandrovsk or Oleksandrivsk until 1921, is a city in southeast Ukraine, situated on the banks of the Dnieper River. It is the administrative centre of Zaporizhzhia Oblast. Zaporizhzhia has a population of
...
. Between 1947 and the 1970s some 1,300 AI-26GR's were produced. The AI-26V model was also produced in Poland during the 1960s as the LiT-3 and later as the PZL-3S.
Applications
* Air Tractor AT-401A *Ayres Thrush
The Ayres Thrush, formerly the Snow S-2,Macdonald, 1964. p.138. Aero Commander Ag Commander, and Rockwell Thrush Commander, is an American agricultural aircraft produced by Ayres Corporation and more recently by Thrush Aircraft. It is one of the ...
* Bratukhin B-5
The Bratukhin B-5 was a prototype Soviet transverse rotor helicopter designed by the Bratukhin Bratukhin, or OKB-3, was a Soviet aircraft design bureau created in 1940 from within TsAGI to develop helicopters. Headed by Ivan Pavlovich Bratukhin ...
* Bratukhin B-11
The Bratukhin B-11 was a prototype Soviet twin-rotor transport helicopter and the last design of the Bratukhin Bratukhin, or OKB-3, was a Soviet aircraft design bureau created in 1940 from within TsAGI to develop helicopters. Headed by Ivan Pavl ...
* Mil Mi-1
The Mil Mi-1 (USAF/DoD reporting name "Type 32", NATO reporting name "Hare") was a Soviet three- or four-seat light utility helicopter. It was the first Soviet helicopter to enter serial production. It is powered by one Ivchenko AI-26V radial ...
* PZL-106 Kruk
The PZL-106 Kruk () is a Polish agricultural aircraft designed and built by Państwowe Zakłady Lotnicze, WSK PZL Warszawa-Okęcie (later PZL "Warszawa-Okęcie" and now EADS-PZL).
Design and development
The PZL-106 was developed as a modern ag ...
* PZL SM-2
The PZL SM-2 was a Polish light utility helicopter, enlarged version of license-built Mil Mi-1, developed and produced by PZL-Świdnik, WSK PZL-Świdnik. It was also known as the WSK SM-2.
Design and development
From 1956 in aviation, 1956, the ...
* Yakovlev Yak-100
The Yakovlev Yak-100 was a single-engine transport helicopter developed in the Soviet Union, USSR in 1948. This was the Yakovlev, Yakovlev Design Bureau's second helicopter.
Design and development
The Yak-100 (initially designated Yak-22) was de ...
Specifications (Ivchenko AI-26GR)
See also
*List of aircraft engines
This is an alphabetical list of aircraft engines by manufacturer.
0–9 2si
*2si 215
*2si 230
*Cuyuna 430, 2si 430
*2si 460
*2si 500
*2si 540
*2si 690
3W
''Source: RMV''
*3W 106iB2
*3W-110
*3W-112
*3W-170
*3W-210
*3W-220
A
Aba ...
References
* {{Ivchenko aeroengines 1940s aircraft piston engines Aircraft air-cooled radial piston engines Ivchenko-Progress aircraft engines