Task Analysis and Workload Prediction for the MH-47E Mission and a Comparison with CH-47D Workload Predictions. Volume 1. Summary Report
Interim rept. Dec 88-Aug 90,
ANACAPA SCIENCES INC FORT RUCKER AL
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A mission scenario was used to conduct a comprehensive task analysis for MH-47E operations. The analysis used a top-down approach to identify the phases, functions, and tasks for the mission. Researchers identified 5 phases, 15 segments, 73 functions, and 239 tasks. They also identified the crewmember performing each task and derived estimates of the sensory, cognitive, and psychomotor workload associated with the tasks. Estimates of the task durations also were derived. The missiontaskworkload analysis data were used to develop a computer model of workload for MH-47E crewmembers. The model used a bottom-up approach to build mission functions from tasks and mission segments from functions. Decision rules were written to specify the procedure for combining the tasks into functions and the functions into segments. The model permitted analysis of total workload experienced by the pilot and copilot in the performance of both sequential and concurrent tasks. The predicted workload for the MH-47E pilot and copilot was compared to the CH-47D baseline workload prediction to determine the impact of the advanced technology on the MH-47E. The comparison indicated little difference in the predicted workload for the pilot and indicated a lower predicted workload for the copilot in the MH-47E. Volume I of the report describes the methodology and summarizes the results of the research. Volume II ADA-235249 contains the appendixes.
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