AI-14
AI-14R engine of a PZL-104 Wilga
Type	Radial engine
National origin	Soviet Union
Manufacturer	Ivchenko
First run	1950

The Ivchenko AI-14 (Russian АИ-14) is a nine-cylinder, air-cooled, radial piston engine designed in the Soviet Union to power aircraft.

Its main variant is the AI-14R (АИ-14Р), which underwent state trials in December 1950 and was used in many types of light aircraft. Several thousand were built. There was also an AI-14V variant for helicopters and other applications. The AI-14R is typically used with a two-bladed propeller and is started with compressed air.

Apart from the Soviet Union, a licenced version of the AI-14R, (currently AI-14RA), has been produced by WSK-Kalisz in Poland from 1956 until now (as of 2007).

The AI-14RF was a variant uprated by Ivan Vedeneyev to 300 hp. Its further development is the Vedeneyev M14P family of engines.

[edit] Specifications (Ivchenko AI-14)

General characteristics

• Type: 9-cylinder, air-cooled, radial, engine
• Bore: 105mm (4.13in)
• Stroke: 130mm (5.12in)
• Displacement: 10.16 Liters (620 cu in)
• Dry weight: 200kg (441lb)

Components

• Supercharger: Single stage, single speed, geared centrifugal supercharger
• Fuel system: Carburetor
• Cooling system: Air

Performance

• Power output:
  
  • Power (take-off): 260 hp (194 kW)
  • Power (nominal): 220 hp (161 kW)
• Compression ratio: 5.9:1

[edit] Applications

 People's Republic of China

• Nanchang CJ-6

 Czechoslovakia

• Aero L-60 Brigadýr (L-60S variant)

 Poland

• PZL-101 Gawron
• PZL-104 Wilga

 Soviet Union

• Antonov An-14 - AI-14RF
• Kamov Ka-15 - AI-14V
• Kamov Ka-18 - AI-14VF
• Kamov Ka-26
• Yakovlev Yak-12
• Yakovlev Yak-18 (Yak-18A variant)

[edit] References

• Gunston, Bill (1986). World Encyclopedia of Aero Engines. Wellingborough: Patrick Stephens, 93. 
• Kotelnikov, Vladimir (2005). Russian Piston Aero Engines. Crowood Press Ltd., p.201-203.