Ivchenko AI-8

AI-8

Type  | Auxiliary Power Unit (APU)
National origin | USSR
Manufacturer  | Ivchenko / Ivchenko-Progress / Motor Sich

The Ivchenko AI-8 is an aircraft auxiliary power unit developed and produced by Ivchenko-Progress and Motor Sich.

## Variants

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AI-8
The base model which is used to generate electricity or supply compressed air to air-start systems. It can also be used as cabin heating if necessary.

## Specifications (AI-8)

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Data from Aircraft engines of the World 1970[1]

#### General characteristics

* Type: Auxiliary Power Unit (APU)
* Length: 725 mm (28.5 in)

* Width: 600 mm (24 in)
* Height: 550 mm (22 in)
* Diameter: ~500 mm (20 in) casing diameter
* Dry weight: 145 kg (320 lb)

#### 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

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1. ^ Wilkinson, Paul H. (1970). Aircraft engines of the World 1970 (21st ed.). Washington D.C.: Paul H. Wilkinson. p. 216.

* v
* t
* e

Ivchenko-Progress aircraft engines

Piston engines|

* AI-4
* AI-14
* AI-26

Turboshafts/turboprops and auxiliary power units (APU)|

* AI-9
* AI-20
* AI-24
* AI-450
* D-136

Turbofans and propfans|

* AI-22
* AI-222
* AI-25
* AI-322
* DV-2
* D-18T
* D-27
* D-36
* D-236
* D-436
* MS-400

Turbojets|

* PBS AI-PBS-350

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