Accession Number:

ADA092992

Title:

Operational Problems Associated with Head-Up Displays during Instrument Flight.

Descriptive Note:

Final rept.,

Corporate Author:

CREW SYSTEMS CONSULTANTS YELLOW SPRINGS OH

Personal Author(s):

Report Date:

1980-10-01

Pagination or Media Count:

231.0

Abstract:

Because of the interest in using head-up displays HUDs as primary flight references in instrument meteorological conditions IMC, a survey of operational pilots flying HUD--equipped airplanes was undertaken. This survey revealed several problem areas that were common to most of the HUDs used. These common problem areas were 1 the HUDs were too bright at night 2 the field of view was too limited and 3 the location of the design eye reference point does not correspond to the typical pilot practice of sitting as high as possible to maintain good visibility. Other problem areas were reported, including 4 the response of the HUD symbols is not adequately controlled by existing specifications 5 pilots have an increased tendency toward disorientation while flying by reference to the HUD 6 the instrument landing system ILS displays in use are not satisfactory and 7 the balance between presenting necessary information and presenting too much is not always achieved on todays HUDs. Concurrently with the review of operational problems, a review of HUD-related training was undertaken. This review shows that very little attention is being paid to initial and recurrent HUD training or to the development of HUD procedures for flight in IMC. Author

Subject Categories:

  • Flight Control and Instrumentation
  • Test Facilities, Equipment and Methods
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE