Engine Cycle Considerations for Future Transport Aircraft 730345
Recent noise technology advancements have provided an increased understanding of true engine noise “floor” levels. This has led to changes in necessary engine cycle requirements for low-noise commercial airplanes. Updated prediction techniques for the core and jet noise sources are described, and lining technology improvements are reviewed. The need for further work in the core noise area is emphasized. The impact of these noise technology revisions on the best engine cycle for obtaining low noise is presented. It is concluded that engines with lower bypass ratios than previously anticipated may be acceptable.
Citation: Gerend, R., Roundhill, J., and Welliver, A., "Engine Cycle Considerations for Future Transport Aircraft," SAE Technical Paper 730345, 1973, https://doi.org/10.4271/730345. Download Citation
Author(s):
Robert P. Gerend, John P. Roundhill, Albertus D. Welliver
Affiliated:
The Boeing Co.
Pages: 10
Event:
National Air Transportation Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1973 Transactions-V82-A
Related Topics:
Commercial aircraft
Noise
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