Design evolution and development of the three-shaft RB 211 type of engine is capable of reducing the installed cruise fuel consumption by 15% compared with current levels, i.e., with fan, compressor, and turbine efficiencies that have already been experimentally demonstrated. This performance improvement translates to a reduction in aircraft direct operating cost of 6% to 8%. A further reduction in cruise fuel consumption could be obtained by combining higher specific air flow in an engine with components that are on average 2% more efficient than currently demonstrated. This can be achieved in a configuration of geared fan engine which gives a cruise fuel consumption of 20% to 22% lower than current levels, depending upon the installation losses of the larger nacelle.

  • Availability:
  • Corporate Authors:

    Royal Aeronautical Society

    4 Hamilton Place
    London S1V 0BQ,   England 
  • Authors:
    • Wilde, G L
  • Publication Date: 1978-7

Media Info

  • Features: References;
  • Pagination: p. 281-299
  • Serial:
    • Aeronautical Journal
    • Volume: 82
    • Issue Number: 811
    • Publisher: Royal Aeronautical Society
    • ISSN: 0001-9240

Subject/Index Terms

Filing Info

  • Accession Number: 00189711
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Apr 12 1979 12:00AM