Auxiliary Power System Requirements for Commercial Air Transports - Past, Present and Future 912188
The auxiliary power unit (APU) requirements for commercial air transports have evolved from those of a convenience item to those of a highly integrated, heavily utilized, automated and sometimes essential, airplane system. This evolution has been driven by increasing demands for reliable airframe electrical and pneumatic power, fuel and weight efficiency, reduced crew workload, maintainability, and environmental accordance. Moreover, with the growth of extended range twin operations (ETOPS), the APU has become an essential back-up to primary airframe systems. This paper reviews the APU design criteria of past and present Boeing commercial jet transports and suggests the direction of future installations.
Citation: Miller, M. and Hix, C., "Auxiliary Power System Requirements for Commercial Air Transports - Past, Present and Future," SAE Technical Paper 912188, 1991, https://doi.org/10.4271/912188. Download Citation
Author(s):
M. P. Miller, C. E. Hix
Affiliated:
Boeing Commercial Airplane Group
Pages: 8
Event:
Aerospace Technology Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1991 Transactions - Aerospace-V100-1
Related Topics:
Auxiliary power units
Energy conservation
Airframes
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