Status of Current Development Activity Related to STOL Propulsion Noise Reduction 730377
The noise goal of 95 PNdB for STOL aircraft imposes severe technology demands on propulsion systems. Effects of this goal on the design of the propulsion system are reviewed. Results from recent development programs associated with STOL noise reduction, such as high bypass fan tests, 25 PNdB acoustic suppression tests, sonic inlets, and powered lift system noise tests, are presented. Integrated propulsion system designs for the blown flap and augmentor wing powered lift systems capable of meeting the noise goal are shown and the performance, installation, and economic penalties assessed.
Citation: Rulis, R., "Status of Current Development Activity Related to STOL Propulsion Noise Reduction," SAE Technical Paper 730377, 1973, https://doi.org/10.4271/730377. Download Citation
Author(s):
R. J. Rulis
Affiliated:
Lewis Research Center, NASA
Pages: 13
Event:
National Air Transportation Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1973 Transactions-V82-A
Related Topics:
Noise
Acoustics
Fans
Aircraft
Flaps
Wings
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