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Ivchenko AI-9

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AI-9
Type
National origin Soviet Union
Manufacturer , Motor Sich
First run 1966



AI-9
AI9-3B
Type Auxiliary Power Unit (APU)
National origin USSR
Manufacturer Ivchenko-Progress
First run 1996
Major applications Antonov An-140
Kamov Ka-27
Kamov Ka-28
Kamov Ka-29
Kamov Ka-32
Kamov Ka-50
Kamov Ka-52
Mil Mi-8
Mil Mi-14
Mil Mi-24
Mil Mi-28
Yakovlev Yak-40

The Ivchenko AI-9 is an aircraft auxiliary power unit developed and produced by Ivchenko-Progress and Motor Sich.[1]

Variants

AI-9
The base model which is used to supply compressed air to air-start systems. It can also be used as cabin heating if necessary.[1]
AI-9V
A variant of the base model that is used to supply compressed air to air-start systems and air conditioning. It also supplies electricity to on-board electrical systems.[2]
AI9-3B
The AI9-3B is used to provide air to engines and air conditioning systems and provide electricity to on-board electrical systems.[3]

Specifications (AI-9)

Data from Aircraft engines of the World 1970[4]

General characteristics

  • Type: Auxiliary Power Unit (APU)
  • Length: 725 mm (28.5 in)
  • Width: 600 mm (24 in)
  • Height: 550 mm (22 in)
  • Diameter:
  • Dry weight:

Components

  • Compressor: 1-stage centrifugal compressor
  • Combustors: Annular combustion chamber with 6 fuel injectors
  • Turbine: 1-stage axial turbine (gas generator) ; 1-stage (free power turbine) - generator drive at 4:1 ratio
  • Fuel type: Aviation Kerosene such as JP-4

Performance

  • Maximum power output: 75 kW (100 shp) at 37,000 rpm or 60 kW DC from TCP-24 electric generator at 9,250 rpm gearbox output
  • Overall pressure ratio: 3.15:1
  • Air mass flow: 1.75 kg/s (231 lb/min) at 37,000 rpm
  • Fuel consumption: 120 kg/h (260 lb/h) maximum
  • Power-to-weight ratio: 0.51 kW/kg (0.31 shp/lb)

References

  1. ^ a b Il'yashenko, Matviy. "AI-9 - Motor Sich". www.motorsich.com. Retrieved 2016-11-22.
  2. ^ Il'yashenko, Matviy. "AI-9V - Motor Sich". www.motorsich.com. Retrieved 2016-11-22.
  3. ^ Il'yashenko, Matviy. "AI9-3B - Motor Sich". www.motorsich.com. Retrieved 2016-11-22.
  4. ^ Wilkinson, Paul H. (1970). Aircraft engines of the World 1970 (21st ed.). Washington D.C.: Paul H. Wilkinson. p. 216.
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