SAFIR 5K/G MI40

The Safir 5K/G MI40 is PBS's new generation auxiliary power unit, capable of supplying twice as much AC power to the aircraft onboard systems as its predecessor, and simultaneously compressed air in order to start the main engine or feed the environmental control system.

Simultaneous supply of AC power and compressed air
Continuous operation for 6 hours
Exceptional reliability
High purity of supplied air
Simple maintenance
Ecological fuel drainage
Start and operation up to 6,000 m
Flight envelope up to 10,000 m
Cancellation of return fuel line to airframe fuel system

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SAFIR 5K/G MI40 represents the new generation of the successful APU SAFIR 5K/G MI, of which more than 1,200 units already operate worldwide.

Significant changes have been made to individual subsystems and parts to improve overall reliability and operating envelope. Specifically, completely new combustion chamber was designed to improve fuel burning and optimize starting in higher altitudes, and a new control unit was developed to allow non-operating altitude up to 10,000 m AMSL.

The fuel system was remade to decrease the risk of spontaneous ignition, the return fuel line to the airframe fuel system was cancelled. Also, fire resistant shielding of attachment points and fireproof insulation of cables were added. The combustion chamber housing and other connecting surfaces are now made of stainless-steel.

Look at the Auxiliary power unit brochure here.

Safir 5K/G MI Parameters

Technical parameters	SI units	Imperial units
Max. electric power output	40 kVA	40 kVA
Power supply	3x 115V/200 V/400 Hz	3x 115V/200 V/400 Hz
Max. bleed air	26.5 kg/min	58.4 lb/min
Fuel consumption	60.0 kg/hod	132.2 lb/hod
Height x width	520 x 398 mm	20.5 x 15.7 in
Length	683 mm	26.9 in
Max. altitude	6,000 m	19,685 ft

We outcompete the competition

The Safir 5K/G MIS outperforms the competitor in every category. This APU was specifically designed in-house by expert PBS technicians to operate up to 6,000 meters of altitude and is able to run continuously for up to 6 hours.

Longer TBO times

The reliable operation of the PBS Safir 5K/G MIS auxiliary power unit allows for the progressive extention of the TBO (Time Between Overhaul) period, meaning a longer, more efficient life for the unit.

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 aircraft equipment regularly receives very good references.

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