In-flight and postflight assessment of pilot workload in commercial transport aircraft using the subjective workload assessment technique. Corwin, W. H. The International Journal of Aviation Psychology, 2(2):77–93, 1992. doi abstract bibtex A question relevant for Federal Aviation Administration (FAA) certification of pilot workload in new commercial transport aircraft is whether subjective evaluation of workload should be conducted in-flight or postflight. This article examines the effect of probe timing (in-flight or postflight) for subjective assessment of flights containing both low and high levels of workload using the Subjective Workload Assessment Technique. The B-727, FAA Phase 2certified, 6-df, motion-base simulator, and air traffic control simulation at the Man-Vehicle System Research Facility at the NASA- Ames Research Center were used. Each pilot flew three different flights: (a) a nominal flight (30 min); (b) a communication flight in which the pilot was instructed to tune in and talk on the command radio, in addition to normal duties (30 min); and (c) a malfunction flight, including two diversions and an engine and "An hydraulic system failures (1 hr 30 min). Sixteen E727 qualified airline pilots flew the three flights on two separate occasions in a test-retest paradigm. No effect for probe timing (in-flight or postflight) was found for the nominal and communication flights. A significant (Probe Timing x Phase of Flight) interaction was found for the malfunction flight. It appears that postflight ratings of high-workload events receive higher workload ratings than in-flight ratings of the same event.
@article{corwin_-flight_1992,
title = {In-flight and postflight assessment of pilot workload in commercial transport aircraft using the subjective workload assessment technique},
volume = {2},
issn = {1050-8414},
doi = {10.1207/s15327108ijap0202_1},
abstract = {A question relevant for Federal Aviation Administration (FAA) certification of pilot workload in new commercial transport aircraft is whether subjective evaluation of workload should be conducted in-flight or postflight. This article examines the effect of probe timing (in-flight or postflight) for subjective assessment of flights containing both low and high levels of workload using the Subjective Workload Assessment Technique. The B-727, FAA Phase 2certified, 6-df, motion-base simulator, and air traffic control simulation at the Man-Vehicle System Research Facility at the NASA- Ames Research Center were used. Each pilot flew three different flights: (a) a nominal flight (30 min); (b) a communication flight in which the pilot was instructed to tune in and talk on the command radio, in addition to normal duties (30 min); and (c) a malfunction flight, including two diversions and an engine and "An hydraulic system failures (1 hr 30 min). Sixteen E727 qualified airline pilots flew the three flights on two separate occasions in a test-retest paradigm. No effect for probe timing (in-flight or postflight) was found for the nominal and communication flights. A significant (Probe Timing x Phase of Flight) interaction was found for the malfunction flight. It appears that postflight ratings of high-workload events receive higher workload ratings than in-flight ratings of the same event.},
number = {2},
journal = {The International Journal of Aviation Psychology},
author = {Corwin, William H.},
year = {1992},
pages = {77--93}
}
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