Microturbo's e-APU program for the business aircraft market is ready to run on the test bed

Orlando – October 6, 2008.

Microturbo (Safran Group Company) announces at the 61st annual Convention of the NBAA (National Business Aviation Association) in Orlando, Florida, that development is on schedule for its e-APU program, the new auxiliary power unit that provides an innovative solution to meet the growing requirements of the business jet market in terms of electrical demands, reliability and environmental standards. The e-APU's first run on the test bed has therefore been confirmed for the coming months.

The e-APU program has successfully passed the different development milestones defined when the project was launched at the end of 2006. The general architecture of this new auxiliary power unit was frozen at the preliminary design review held at the end of 2007.

The core engine was validated at the critical design review last June, followed in July by the gearbox which has been developed by Triumph Gear Systems, Microturbo's Utah-based partner and subsidiary of the Triumph Group Inc. Completion of these latest phases means that the first detailed drawings of this initial version have now been frozen, and production of the first parts has been launched.

The first run on test bed will be as planned. Final certification of the complete e-APU is planned three years later.

The development tests scheduled in 2009 will be focused on the ability of the e-APU to start up at 41,000 feet and operate to a maximum altitude of 51,000 feet, in order to meet current and future demands of new business jets with their increasing electrical needs and forthcoming "all-electric" characteristics. This first version is equipped with a dual-pad gearbox and features a 28 VDC starter-generator delivering 15 kWe of electrical power, plus a 115 VAC / 400 Hz alternator unit delivering 45 kWe of electrical power, prefiguring the versatility of the end product that will be available to customers.

«At the forefront of innovation, this initial e-APU configuration is the result of close cooperation between all the business jet manufacturers with which Microturbo sustains permanent ties to ensure that future requirements are fully understood, supported and appropriately defined.», stated Jean-Baptiste Jarin, Microturbo sales director.

Microturbo, a SAFRAN Group company and subsidiary of Turbomeca, is specialized in the design, development and production of low power gas turbine systems. Its activity focuses on three product lines: auxiliary power units, turbojet engines for missiles and target drones, and starting systems.

Angélique Brandan
+33 (0)6 75 68 59 97
+33 (0)5 61 37 78 56

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