Document Type

Article

Publication Date

2005

City

Dayton

Abstract

Tunnel-in-the-sky displays have shown great potential for reducing pilot workload and navigation error. Although it is a well-evaluated concept, only little research has been conducted on situations in which the pilot has (deliberately or not) flown outside of the tunnel. This paper describes the experimental evaluation of various alternatives to support pilots in recapturing their nominal trajectory. The concepts studied include the use of guiding arrows, path deviation indicators, a symbol representing the tunnel and a “return tunnel”. Results from a pilot-in-the-loop experiment indicate that a “return tunnel” performed best on situation awareness and workload aspects and that most pilots participating in the experiment had a general preference for this support concept.


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