Designing The JT9D Engine to Meet Low Noise Requirements for Future Transports 670331
This paper discusses the design of the JT9D-1 engine from the viewpoint of the noise reduction features which have been incorporated. Fan noise is predominant from high bypass ratio turbofans. The various sources of fan noise are discussed and the research work of the past several years on methods of noise reduction are reviewed. The paper discusses the application of the results of this work to the JT9D-1 design.
Citation: Kester, J. and Slaiby, T., "Designing The JT9D Engine to Meet Low Noise Requirements for Future Transports," SAE Technical Paper 670331, 1967, https://doi.org/10.4271/670331. Download Citation
Author(s):
J. D. Kester, T. G. Slaiby
Affiliated:
Pratt and Whitney Aircraft Div., United Aircraft Corp.
Pages: 8
Event:
National Aeronautic Meeting and 3rd International Simulation and Training Conference
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1967 Transactions-V76-A
Related Topics:
Fans
Noise
Design processes
Research and development
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