Near Field Noise Analyses of Aircraft Propulsion Systems with Emphasis on Prediction Techniques for Jets

This citation is provided as a resource for researchers, but Contrails cannot provide a full-text download

U.S. government employees, Military/Department of Defense employees, and U.S. government contractors and sub-contractors may be eligible to register with the Defense Technical Information Center (DTIC), where this report and others like it may be available
Report Number: AFFDL TR 67-43
Author(s): Plumblee, H. E., Ballentine, J. R., Passinos, B.
Corporate Author(s): Lockheed-Georgia Company
Laboratory: Air Force Flight Dynamics Laboratory
Date of Publication: 1967-08
Pages: 230
Contract: AF 33(615)-2503
DoD Project: 1471
DoD Task: 147102
Identifier: AD0822414

Semi-empirical methods are presented for calculating sound pressure level in a jet near noise field, including temperature and Mach number effects. A digital computer program for calculating constant SPL contours for the overall and octave band frequencies is incorporated. Machine plotted contours from model jet tests for a basic jet, VTOL jet, deflected jet, and jet with ejector are featured. Results of tip-turbine fan tests are given. Cruise fan, VTOL shrouded fan, and wing mounted configurations were tested.

Other options for obtaining this report:

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a pdf download of the report, exists at DTIC

Via National Technical Report Library:
This report may be available for download from NTRL. Use the Title from this record to locate the item in DTIC Online

Indications of Public Availability
No digital image of an index entry indicating public availability is currently available
There has been no verification of an indication of public availability from an inside cover statement