SUGGESTED CHANGES IN CURRENT NOISE CERTIFICATION PROCEDURES FOR COMMERCIAL TRANSPORT AIRCRAFT

Based on the experience acquired at Douglas in DC-9 and DC-10 noise certification programs, and on the results of aircraft noise research conducted within and outside the Company, several opportunities have been identified for controlling certification costs without compromise of national noise abatement objectives. These opportunities involve expansion of the allowable temperature-humidity test window, expanded use of acoustical analysis rather than flight testing, and simplification in the determination of maximum sideline noise levels. Recommendations are presented for appropriate action needed to develop and implement improved procedural requirements.

• Supplemental Notes:
  • Prepared for SAE Meeting, August 9-12, 1976.
• Corporate Authors:

  Society of Automotive Engineers (SAE)

  400 Commonwealth Drive
  Warrendale, PA  United States  15096
• Authors:
  • Fish Jr, E B
  • Haight, N L
• Publication Date: 1976

Media Info

• Pagination: 7 p.

Subject/Index Terms

• TRT Terms: Acoustics; Aircraft noise; Certification; Civil aviation; Costs; Noise control; Sound level; Temperature
• Identifier Terms: McDonnell Douglas aircraft; McDonnell Douglas DC-10; McDonnell Douglas DC-9
• Uncontrolled Terms: Noise reduction
• Old TRIS Terms: Noise certification criteria
• Subject Areas: Aviation; Education and Training; Environment; Finance;

Filing Info

• Accession Number: 00172819
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: SAE 760615 Preprint
• Files: TRIS
• Created Date: Jun 28 1978 12:00AM