A series of instrument landing system approaches were conducted using seven airline-rated Boeing 737 pilots in a Federal Aviation Administration qualified simulator. The test matrix included both manual and coupled approaches with and without atmospheric turbulence in Category II visibility conditions. A nonintrusive oculometer system was used to track the pilot eye-point-of-regard throughout the approach. The results indicate that, in general, the pilots use different scan techniques for the manual and coupled conditions and that the introduction of atmospheric turbulence does not greatly affect the scan behavior in either case. The pilots consistently ranked the instruments in terms of most used to least used. The ranking obtained from the oculometer data agrees with the pilot ranking for the flight director and airspeed, the most important instruments. However, the pilots apparently ranked the other instruments in terms of their concern for information rather than according to their actual scanning behavior.

  • Corporate Authors:

    Langley Research Center

    National Aeronautics and Space Administration
    Hampton, VA  United States  23665
  • Authors:
    • Spady, AAJ
  • Publication Date: 1978-10

Media Info

  • Pagination: 72 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00197930
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-TP-1250, L-11989
  • Files: TRIS
  • Created Date: Sep 15 1979 12:00AM