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Bohumil Antoš
Bohumil Antoš
Bohumil Antoš
APU Department
SAFIR 5L

SAFIR 5L

  • Long service life
  • Easy maintenance
  • Start and operation up to 8,000 m
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Safír 5L is an auxiliary power unit designed to supply compressed air for starting the main engines. 

Auxiliary power unit parameters

Technical parameters SI units Imperial units
Max. bleed air 32 kg/min 70,5 lb/min
Weight 42 kg 92.6 lb
Height x width 443 x 319 mm 17,4 x 12,6 in
Length 611 mm 24 in
Max. altitude 8 000 m 26 200 ft

Why us?

Startup and operation up to 8,000 m
Startup and operation up to 8,000 m
This auxiliary power unit is especially designed to supply compressed air to start the main engines; it can be operated continuously for 2 hours up to 8,000 m.
Purity of air supplied to the environmental control system
Purity of air supplied to the environmental control system
This PBS auxiliary power unit combines high power, small dimensions and light weight, and it also supplies clean air to the environmental control system.

Service, spare parts and overhauls of aerospace technology

We provide service of the highest quality for all users of our aerospace technology products.

We have long been working to extend the service life of our products, e.g. by introducing new technologies to produce the most exposed parts. Our turbine-based aicraft equipment regularly receives very good references.