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Proceedings Paper

Conformal versus nonconformal symbology and the head-up display
Author(s): Jeffry Long; Christopher D. Wickens
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Paper Abstract

Thirty-two pilot subjects flew instrument approaches in a visually high-fidelity simulator. Location of flight symbology was manipulated while controlling for optical distance and symbology format. Subjects were assigned to one of two symbology sets, conformal or non-conformal. Each subject flew half of the trials with the symbology presented in a head-up location and half with the symbology located head-down. An unexpected far domain event was presented on one trial per subject. The results revealed that, for flight path control, there was generally a cost associated with head-down location. The magnitude of this cost was relatively larger for conformal than for non-conformal symbology. Head-up presentation resulted in faster transition from instrument to visual flight references, but slower response to the far domain unexpected event.

Paper Details

Date Published: 10 June 1994
PDF: 9 pages
Proc. SPIE 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements, (10 June 1994); doi: 10.1117/12.177380
Show Author Affiliations
Jeffry Long, Univ. of Illinois-Willard Airport (United States)
Christopher D. Wickens, Univ. of Illinois-Willard Airport (United States)

Published in SPIE Proceedings Vol. 2218:
Helmet- and Head-Mounted Displays and Symbology Design Requirements
Ronald J. Lewandowski; Wendell Stephens; Loran A. Haworth, Editor(s)

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