A four-phase program is described. Phase 1 was concerned with the identification of noise sources in rotary and jet stream type propulsion systems for V/STOL aircraft. In order to facilitate the noise source identifications and provide needed data for subsequent work, an extensive bibliography (809 references) was compiled. Phase 2 work covers the definition of noise generating mechanisms for jet stream V/STOL systems. Phase 3 discusses the noise reduction concepts which are applicable. In Phase 4, hand calculation and computer programs are derived and presented for predicting the far field noise environment of various types of V/STOL aircraft. (Author)

  • Corporate Authors:

    Lockheed-Georgia Company

    Marietta, GA  United States 
  • Authors:
    • Guinn, W A
    • Blakney, D F
    • Gibson, J S
  • Publication Date: 1973-8

Media Info

  • Pagination: 396 p.

Filing Info

  • Accession Number: 00054480
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: LG73ER0062 Final Rpt
  • Contract Numbers: DOT-FA72WA-3099
  • Files: NTIS
  • Created Date: Jun 18 1974 12:00AM