Noise prediction for jetstar prop-fan test
- Author:
- Greene, G. C.
- Published:
- Dec 1, 1980.
- Physical Description:
- 1 electronic document
- Additional Creators:
- Farassat, F. and Martin, R. M.
Online Version
- hdl.handle.net , Connect to this object online.
- Restrictions on Access:
- Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access - Summary:
- The acoustic calculations reported in this memorandum are for two model prop-fan designs (SR-2 and SR-3 blades) scheduled for test on top of Jetstar aircraft. The predicted acoustic pressure signatures and spectra for selected microphone positions on the fuselage and operating conditions are presented. A detailed presentation of the input data, the acoustic results, and the corrections for microphone fuselage reflection are included. The general trend observed in these calculations is that the acoustically optimized model (using SR-3 blades) is substantially quieter than the model with SR-2 blades. This latter design has conventional straight blades.
- Other Subject(s):
- Collection:
- NASA Technical Reports Server (NTRS) Collection.
- Note:
- Document ID: 19810006276.
Accession ID: 81N14790.
NASA-TM-81916. - Terms of Use and Reproduction:
- No Copyright.
View MARC record | catkey: 15720475