NOISE LEVELS OF JET TRANSPORT AIRCRAFT DURING INITIAL CLIMB

This report contains noise peak level data measured for 27 jet transport departure flights at minimum slant range distances of between 305m and 1830m. The noise data, in D-weighted sound levels, dB(D), were obtained by analysis of noise history tape recordings each of which was accompanied by a photographic record of the flight track. Propagation laws, relating peak sound level and minimum slant range, are derived for ten different aircraft types and for two categorised groupings (2-engined turbofan and 4-engined turbofan aircraft). Directivity properties of the D-weighted sound level of selected aircraft are also derived from the sound history and photographic records.

• Corporate Authors:

  Loughborough University of Technology

  Department of Transport Technology
  Loughborough,   England 
• Authors:
  • Lanzer, M
  • Brown, D
  • OLLERHEAD, J B
• Publication Date: 1977-3

Media Info

• Features: References;
• Pagination: 35 p.

Subject/Index Terms

• TRT Terms: Aircraft; Aircraft noise; Arrivals and departures; Jet engines; Jet propelled aircraft; Noise; Noise control; Sound level; Sound transmission; Tape recorders; Traffic noise; Turbofan engines
• Subject Areas: Aviation; Environment; Vehicles and Equipment;

Filing Info

• Accession Number: 00178262
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: TT Rpt 7702
• Files: TRIS
• Created Date: Jul 19 1978 12:00AM