Behavior-based vs. system-based training and displays for automated vertical guidance
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1997-04-01
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NTL Classification:NTL-AVIATION-Aviation Human Factors
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Abstract:Aircraft automation, particularly the automation surrounding vertical navigation has been cited as an area of training difficulty and a source of confusion during operation. A number of incidents and accidents have been attributed to a lack of crew understanding of what the automation is doing. This paper describes an experiment which tested a new display for automated vertical guidance. The study involved is part of a larger project to improve the
recognition and understanding of the "objectives and behaviors" of automated systems through a formal methodology, referred to as the operational procedures methodology (Sherry, 1995). This methodology was used to design the vertical guidance logic in the McDonnell Douglas MD-11, a representative of the latest generation of autoflight systems. The purpose of the experiment was to extend the use of this method to integrate the design of the training and display information requirements for the vertical guidance system. The experiment utilized a training package designed to teach the vertical guidance portion of the Flight Mode Annunciator (FMA) display. The results of the experiment showed that this type of training can be successfully delivered via a computer based training device.
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