AI9-3B auxiliary power unit
The AI9-3B auxiliary power unit is designed for the An-140
airplanes and other airplanes and helicopters.
The APU has been developed on the background of vast
experience in manufacturing and operating the AI-9 base
APU and it brings about low production costs, high
reliability, and long service life. The APU is used for starting aircraft propulsion engines and
conditioning crew cabins and passenger compartment
together with powering airborne electric equipment.
Main advantages:
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Use of the AI9-3B APU provides:
- expansion of the range of aircraft utilization;
- reduction of propulsion engines operating time;
- improvement of safe aircraft maintenance;
- reduced expenditures for auxiliary ground facilities and maintenance manpower;
- availability of additional air and electric power source in flight up to 6000 m.
Basic specifications:
| (SLS, ISA+30°C): | |
| AC aircraft electric system power supply, kV·A | 16 |
| Bled air flow, kg/s | 0.47 |
| Bled air pressure, kgf/cm2 | 4.0 |
| Bled air temperature, °C | 190 |
| Fuel consumption, kg/h, max | 92 |
| Total engine weight, kg | 112 |
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