Print Email Facebook Twitter In-flight spatial disorientation induces roll reversal errors when using the attitude indicator Title In-flight spatial disorientation induces roll reversal errors when using the attitude indicator Author Landman, A. Davies, S. Groen, E.L. van Paassen, M.M.R. Lawson, N.J. Bronkhorst, A.W. Mulder, M. Publication year 2019 Abstract We hypothesized that an incorrect expectation due to spatial disorientation may induce roll reversal errors. To test this, an in-flight experiment was performed, in which forty non-pilots rolled wings level after receiving motion cues. A No-leans condition (subthreshold motion to a bank angle) was included, as well as a Leans-opposite condition (leans cues, opposite to the bank angle) and a Leans-level condition (leans cues, but level flight). The presence of leans cues led to an increase of the roll reversal error (RRE) rate by a factor of 2.6. There was no significant difference between the Leans-opposite and Leans-level condition. This suggests that the expectation strongly affects the occurrence of an RRE, and that people tend to base their responses on motion cues instead of on information on the AI. We conclude that expectation and spatial disorientation have a large effect on piloting errors and may cause hazardous aircraft upsets. © 2019 Elsevier Ltd Subject Displays Upset recoveryAviationDisplay devicesErgonomicsPhysical therapyBank anglesFlight experimentsMotion cuesSpatial disorientationSubthresholdSurpriseErrors To reference this document use: http://resolver.tudelft.nl/uuid:12114d33-c791-4515-8e95-14ef2acfa104 DOI https://doi.org/10.1016/j.apergo.2019.102905 TNO identifier 868454 Source Applied Ergonomics, 81 Article number 102905 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.