Design and flight evaluation of visually-coupled symbology for integrated navigation and near-terrain flight guidance

Harry N. Swenson; Richard E. Zelenka; Munro G. Dearing; Gordon H. Hardy; Raymond Clark; Andre Zirkler; Tom Davis; Gary Amatrudo

doi:10.1117/12.177359

10 June 1994 Design and flight evaluation of visually-coupled symbology for integrated navigation and near-terrain flight guidance

Harry N. Swenson, Richard E. Zelenka, Munro G. Dearing, Gordon H. Hardy, Raymond Clark, Andre Zirkler, Tom Davis, Gary Amatrudo

Author Affiliations +

Proceedings Volume 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements; (1994) https://doi.org/10.1117/12.177359
Event: SPIE's International Symposium on Optical Engineering and Photonics in Aerospace Sensing, 1994, Orlando, FL, United States

Abstract

NASA and the U.S. Army have designed, developed and flight evaluated a Computer Aiding for Low-Altitude Helicopter Flight (CALAHF) guidance system. This system provides guidance to the pilot for near-terrain covert helicopter operations. The system automates the processing of precision navigation information, helicopter mission requirements and terrain flight guidance. This automation is presented to the pilot through symbology on a helmet mounted display. The symbology is a 'pilot-centered' design which preserves pilot flexibility and authority over the CALAHF system's automation. An extensive flight evaluation of the system has been conducted using the U.S. Army's NUH-60 STAR (Systems Testbed for Avionics Research) research helicopter. The evaluations were flown over a multi-waypoint helicopter mission in rugged mountainous terrain. The system was evaluated at terrain clearance altitudes from 300 to 125 feet, and airspeeds from 40 to 110 knots. The results of these evaluations showed that the pilots could precisely follow the automation symbology while maintaining a high degree of situational awareness.

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Harry N. Swenson, Richard E. Zelenka, Munro G. Dearing, Gordon H. Hardy, Raymond Clark, Andre Zirkler, Tom Davis, and Gary Amatrudo "Design and flight evaluation of visually-coupled symbology for integrated navigation and near-terrain flight guidance", Proc. SPIE 2218, Helmet- and Head-Mounted Displays and Symbology Design Requirements, (10 June 1994); https://doi.org/10.1117/12.177359

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KEYWORDS

Visualization

Navigation systems

Avionic systems

Computer aided design

Computing systems

Head-mounted displays

Situational awareness sensors

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