Hamilton Sundstrand’s APS5000 auxiliary power unit (APU) for the Boeing 787 Dreamliner has successfully completed extended-range operations (ETOPS) testing.
The completed testing is an important step in providing ETOPS capabilities for the Boeing 787 when it enters into service.
The test is being performed in concert with the 787 testing phase.
The APU provides electrical power to the aircraft while on the ground and back-up power during flight.
The unit comprises two 225kVA, 230VAC starter / generators, an eductor cooling system, variable speed operation, no-break power transfer capability and a 15,000 MTBO core engine design.
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