Helicopter pilot estimation of self-altitude in a degraded visual environment

John S. Crowley; Loran A. Haworth; Zoltan Peter Szoboszlay; Alan G. Lee

doi:10.1117/12.389161

23 June 2000 Helicopter pilot estimation of self-altitude in a degraded visual environment

John S. Crowley, Loran A. Haworth, Zoltan Peter Szoboszlay, Alan G. Lee

Proceedings Volume 4021, Helmet- and Head-Mounted Displays V; (2000) https://doi.org/10.1117/12.389161
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

The effect of night vision devices and degraded visual imagery on self-attitude perception is unknown. Thirteen Army aviators with normal vision flew five flights under various visual conditions in a modified AH-1 (Cobra) helicopter. Subjects estimated their altitude or flew to specified altitudes while flying a series of maneuvers. The results showed that subjects were better at detecting and controlling changes in altitude than they were at flying to or naming a specific altitude. In cruise flight and descent, the subjects tended to fly above the desired altitude, an error in the safe direction. While hovering, the direction of error was less predictable. In the low-level cruise flight scenario tested in this study, altitude perception was affected more by changes in image resolution than by changes in FOV or ocularity.

Citation Download Citation

John S. Crowley, Loran A. Haworth, Zoltan Peter Szoboszlay, and Alan G. Lee "Helicopter pilot estimation of self-altitude in a degraded visual environment", Proc. SPIE 4021, Helmet- and Head-Mounted Displays V, (23 June 2000); https://doi.org/10.1117/12.389161

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