AIRCRAFT NOISE DEFINITION. PHASE I. ANALYSIS OF EXISTING DATA FOR THE DC-8, DC-9 AND DC-10 AIRCRAFT

The efforts in this phase of the 'Aircraft Noise Definition' project was comprised of processing and analysis of existing acoustic and performance data and preparing acoustic and performance (based on average engine) graphical and computer presentations for two JT3D turbofan-powered DC-8s, one with short and one with long fan ducts; two DC-9s, one with JT8D-7 and one with JT8D-9 engines; and the DC-10-10 and DC-10-40 aircraft. The acoustic data included reference-day EPNL and peak A-weighted sound level curves with empirically developed curves for adjusting the noise levels to temperatures from 30F to 100F with the relative humidity held constant at 70 percent. The performance data include provisions for a temperature variation from 30F to 100F and runway altitude from sea level to 6000 feet. Data accuracy is described in terms of assignable confidence limits.

• Corporate Authors:

  Douglas Aircraft Company, Incorporated

  3855 Lakewood Boulevard
  Long Beach, CA  United States  90801

  Federal Aviation Administration

  Office of Environmental Quality, 800 Independence Avenue, SW
  Washington, DC  United States  20591
• Authors:
  • Goodman, J S
• Publication Date: 1973-8

Media Info

• Pagination: 373 p.

Subject/Index Terms

• TRT Terms: Acoustics; Aerodynamic noise; Aircraft noise; Approach; Civil aircraft; Computer programs; Environment; Flight paths; Glide path systems; Graphics; Jet engines; Jet propelled aircraft; Noise; Overpasses; Sound level; Temperature; Turbofan engines
• Identifier Terms: McDonnell Douglas aircraft; McDonnell Douglas DC-10; McDonnell Douglas DC-8; McDonnell Douglas DC-9
• Old TRIS Terms: Acoustic data; Flyby; Jet engine noise; Pratt and whitney jt3d engine; Pratt and whitney jt8c-9 engine; Pratt and whitney jt9d-7 engine
• Subject Areas: Aviation; Environment;

Filing Info

• Accession Number: 00093285
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-EQ-73-5 Final Rpt., MDC-J5973
• Contract Numbers: DOT-FA73WA-3161
• Files: NTIS, TRIS, USDOT
• Created Date: Dec 3 1976 12:00AM