Task Analysis and Predictive Workload Modeling for Autonomous Aircraft

The desire to transition to single-pilot operations (SPO) has led to research and development of autonomous technologies that can take over tasks normally handled by two pilots and create a new paradigm that supports SPO. To safely achieve single-pilot operations (SPO) of an existing dual crew aircraft, the workload split between the two pilots needs to be analyzed and candidate tasks for offloading identified. Simulation is a valuable tool to model different task allocation strategies for such systems. This paper presents the methodology that was used to analyze shared tasks between a two-pilot crew and identify candidate tasks that could be handled by the autonomous system. A simulation tool called Improved Performance Research Integration Tool (IMPRINT), developed by the U.S. Army was used as part of the design process for an autonomous flight control system. IMPRINT was used to guide cognitive walk-throughs and model pilot workload to inform task allocation between autonomy and the human operator. Advantages and disadvantages of this method will be discussed as well as recommendations for future work.