Accession Number:

ADB010468

Title:

Supersonic Transport Noise Reduction Technology Program - Phase 2. Volume 1

Descriptive Note:

Final rept.

Corporate Author:

GENERAL ELECTRIC CO CINCINNATI OH AIRCRAFT ENGINE BUSINESS GROUP

Report Date:

1975-09-01

Pagination or Media Count:

485.0

Abstract:

The Supersonic Transport Noise Reduction Technology Program, sponsored by the Federal Aviation Administration, was conducted as a follow-on effort after cancellation of the SST Program to finalize selected noise technology areas and summarize results of the SST Program. Using initial effects of the SST Program, as summarized in Phase I of The Supersonic Transport Noise Reduction Technology Program, the Phase II contract was issued to the General Electric Company and Boeing to continue this important work. The overall program objective was to provide additional acoustic technology necessary, to design high speed aircraft systems, recognizing future acceptable noise levels. General Electrics effort was divided into the acoustic technology areas of jet noise reduction, turbomachinery noise reduction, and aircraft system integration. Jet noise reduction technology work was achieved through analytical studies, model tests, and J79 engine tests. Selected suppression systems identified during the SST Program were further refined multispokechute suppressors or annular plug nozzles. Novel advanced concepts of suppression were identified, and extensive aerodynamic static and wind-on performance tests and hot-jet acoustic tests were performed.

Subject Categories:

  • Transport Aircraft
  • Civil Engineering
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE