Vertical Navigation Displays: Pilot performance and workload during simulated constant-angle-of-descent GPS approaches
نویسندگان
چکیده
This study compared the effect of alternative graphic or numeric vertical navigation (VNAV) aircraft cockpit displays on horizontal and vertical flight technical error (FTE), workload and subjective preference. Displays included: a) a moving map with altitude range arc, b) the same format, supplemented with a push-to-see profile view, including a vector flight-path predictor, c) an equivalent numeric display, and d) a numeric non-VNAV display. Sixteen pilots each flew four different approaches with each format in a Frasca 242 simulator. Our VNAV displays reduced vertical FTE by as much as a factor of two without increasing workload. Relative advantages of the graphics formats are discussed.
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