The Impact of a Weather Information System Display on General Aviation Pilot Workload and Performance

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The Impact of a Weather Information System Display on General Aviation Pilot Workload and Performance

Chamberlain, James P. / Burt, Jennifer L. / Coyne, Joseph T. / Jones, Kenneth M.

The effect on general aviation (GA) pilots' abilities to fly a small airplane while using a prototype data-linked weather information system (WIS) display, located in various cockpit positions, was investigated in comparison to the effect on their flying of acquiring weather information through conventional means. Ten GA pilots performed en route flying tasks of varying difficulty while concurrently performing weather information acquisition tasks. Pilots' subjective workload ratings, weather information acquisition times and accuracy levels, and preliminary flight path parameter deviation data indicate that using a WIS display results in smaller flight path parameter deviations, lower workload, and faster and slightly more accurate information retrieval than when weather information is obtained via the radio. Overall, pilots flew and simultaneously accessed weather information slightly better with the WIS display mounted on the instrument panel or control yoke as opposed to on a kneeboard.