ⓘ Ivchenko AI-9. 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. AI-9V A varia ..

                                     

ⓘ Ivchenko AI-9

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. 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. AI9-3B The AI9-3B is used to provide air to engines and air conditioning systems and provide electricity to on-board electrical systems.
                                     

1. Specifications AI-9

Data from Aircraft engines of the World 1970

General characteristics

  • Diameter: 500 mm 20 in casing diameter
  • Length: 740 mm 29 in
  • Dry weight: 45 kg 99 lb
  • Type: Auxiliary Power Unit APU

Components

  • Fuel type: Aviation Kerosene such as JP-4
  • Compressor: 1-stage centrifugal compressor
  • Combustors: Annular combustion chamber with 6 fuel injectors
  • Turbine: 1-stage axial turbine gas generator

Performance

  • Fuel consumption: 120 kg/h 260 lb/h maximum
  • Maximum power output: 56 kW 75 hp air hp at 38.500 rpm or 0.4 kg/s 53 lb/min of compressed air at 2.4 bar 35 psi
  • Power-to-weight ratio: 1.23 kW/kg 0.75 hp/lb air hp
  • Overall pressure ratio: 2.8:1
  • Air mass flow: 1.5 kg/s 200 lb/min at 38.500 rpm
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