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van den Hoed, A. (author), Landman, A. (author), van Baelen, D. (author), van Paassen, R. (author), Groen, E.L. (author), Mulder, M. (author)
Objective: We tested whether a procedure in a hexapod simulator can cause incorrect assumptions of the bank angle (i.e., the “leans”) in airline pilots as well as incorrect interpretations of the attitude indicator (AI). Background: The effect of the leans on interpretation errors has previously been demonstrated in nonpilots. In-flight,...
article 2020
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Landman, A. (author), Davies, S. (author), Groen, E.L. (author), van Paassen, M.M.R. (author), Lawson, N.J. (author), Bronkhorst, A.W. (author), Mulder, M. (author)
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 ...
article 2019
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Ledegang, W.D. (author), Groen, E.L. (author)
BACKGROUND: Adequate instrument scanning is considered an important countermeasure against spatial disorientation (SD). Remarkably, literature on the relation between SD and pilots’ visual scanning is scarce. The objective of this simulator study was to investigate the influence of SD on pilots’ visual scanning and flight performance. METHODS:...
article 2018
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Sgobba, T. (author), Landon, L.B. (author), Marciacq, J.B. (author), Groen, E.L. (author), Tikhonov, N. (author), Torchia, F. (author)
Selection and training represent two means of ensuring flight crew members are qualified and prepared to perform safely and effectively in space. The first part of the chapter looks at astronaut selection beginning with the evolutionary changes in the US and Russian programs. A discussion of the critical skills and selection best practices...
bookPart 2018
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Landman, H.M. (author), Groen, E.L. (author), van Paassen, M.M. (author), Bronkhorst, A.W. (author), Mulder, M. (author)
Objective: A conceptual model is proposed in order to explain pilot performance in surprising and startling situations. Background: Today’s debate around loss of control following in-flight events and the implementation of upset prevention and recovery training has highlighted the importance of pilots’ ability to deal with unexpected events....
article 2017
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Landman, H.M. (author), Groen, E.L. (author), van Paassen, M.M. (author), Bronkhorst, A.W. (author), Mulder, M. (author)
Objective: The aim of this study was to test if performance of airline pilots, in performing an aerodynamic stall recovery procedure, decreases when they are surprised, compared to when they anticipate a stall event. Background: New flight-safety regulations for commercial aviation recommend the introduction of surprise and startle in upset...
article 2017
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Ledegang, W.D. (author), Groen, E.L. (author)
We investigated the performance of 12 airline pilots in recovering from an asymmetrical stall in a flight simulator featuring an extended aerodynamic model of a transport-category aircraft, and a centrifuge-based motion platform capable of generating enhanced buffet motion and g-cueing. All pilots had difficulties in applying the correct...
article 2015
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Groen, E.L. (author), Kuiper, O.X. (author)
report 2015
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Correia Grácio, B.J. (author), de Winkel, K.N. (author), Groen, E.L. (author), Wentink, M. (author), Bos, J.E. (author)
Without visual feedback, humans perceive tilt when experiencing a sustained linear acceleration. This tilt illusion is commonly referred to as the somatogravic illusion. Although the physiological basis of the illusion seems to be well understood, the dynamic behavior is still subject to discussion. In this study, the dynamic behavior of the...
article 2013
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Fucke, L. (author), Groen, E. (author), Goman, M. (author), Abramov, N. (author), Wentink, M. (author), Nooij, S. (author), Zaichik, L.E. (author), Khrabrov, A. (author)
The objective of the European research project SUPRA (Simulation of Upset Recovery in Aviation) is to develop technologies that eventually contribute to a reduction of risk of Loss of control - in flight (LOC-I) accidents, today's major cause of fatal accidents in commercial aviation. To this end the project developed novel concepts to improve...
conference paper 2012
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Ledegang, W.D. (author), Groen, E.L. (author), Wentink, M. (author)
This paper investigates how pilots' control behavior and motion perception during a simulated roll maneuver depends on the level of normal g load using a centrifuge-based simulator. Fourteen commercial pilots participated in the study, actively controlling a series of coordinated bank angle changes between -30 and +30 degrees. By changing the...
conference paper 2012
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Groen, E. (author), Bos, J.E. (author), Nooij, S.A.E. (author)
article 2011
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de Winkel, K.N. (author), Correia Grácio, B.J. (author), Groen, E.L. (author), Werkhoven, P.J. (author), TNO Defensie en Veiligheid (author)
Knowledge of human motion perception can be applied in the optimization of motion cueing algorithms. In the past it has been shown that some discrepancies between the amplitude or phase of a visual and inertial cue go unnoticed. These acceptable discrepancies are referred to as coherence zones. In the present experiment we investigate whether a...
conference paper 2010
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Groen, E.L. (author), TNO Defensie en Veiligheid (author)
Dit artikel beschrijft de nieuwste resultaten van het ESA onderzoeksproject 'Motion perception' waarbij de correlatie wordt onderzocht tussen de gevoeligheid van astronauten voor Space Adaption Syndrome (SAS) en Sickness Induced by Centrifugation (SIC)
article 2008
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Groen, E.L. (author), Smaïli, M.H. (author), Hosman, R.J.A.W. (author), TNO Defensie en Veiligheid (author)
In this flight simulator study, eleven pilots rated their motion perception during a series of decrab maneuvers of a twin-engine passenger aircraft. Simulator yaw, sway, and roll motion were varied independently to examine their relative contribution to the pilots’ judgments. In one set of conditions, the washout algorithms were bypassed so as...
article 2007
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Groen, E.L. (author), Wentink, M. (author), Valente Pais, A.R. (author), Mulder, M. (author), van Paassen, M.M. (author), TNO Defensie en Veiligheid (author)
Pilot perception models include detailed descriptions of the sensory dynamics involved in human spatial orientation. For example, the TNO Spatial Orientation model contains transfer functions of the visual and vestibular system (semicircular canals and otoliths). In our previous attempts to apply this model for the validation of simulator motion...
conference paper 2006
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