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document
Usmani, O.A. (author)
This document consists of a quick overview of some existing consumer compensation schemes offered by the aviation industry. This will consist of (if the information was available) a description of how the scheme works, an overview of the project types the scheme proposes, information about the scope/size of the scheme, data about costs, and...
report 2021
document
Usmani, O. (author), de Wilde, H. (author), Uslu, A. (author)
An increasing number of people experiences flight shame (or ‘flygskam’ in Swedish, where the term originated). However, as of yet this has not resulted in a reduction in the number of flights. Flying currently remains the default option for (international) travel.
report 2021
document
Usmani, O.A. (author), de Wilde, H. (author)
The impact of using renewable fuels means multiplying fuel cost by a factor 2-6. The aim of this document is to illustrate how large the impact of replacing fossil fuels with renewable ones is in the aviation sector.
report 2021
document
de Wilde, H. (author)
Goal: Provide substantiation for the extra costs of biokerosene and synthetic kerosene, compared to kerosene from fossil origin that we use in the article on aviation on energy.nl, supported by numbers from authoritative sources.
other 2021
document
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
document
Hur, C. (author), Berdowski, T. (author), Ferreira, C. (author), Schepers, G. (author), Boorsma, K. (author)
BEM (Bladed Element Momentum) models have shown to be inaccurate in predicting loads in the case of yawed flow [1-3]. Actuator disk momentum theory is the basis for BEM codes, following Glauert's auto-gyro theory [4]. Therefore, a first step to improve BEM in yawed flow is to assess momentum models for the actuator disk in yaw and investigate...
conference paper 2019
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Ravishanara, A.K. (author), Ozdemir, H. (author), Franco, A. (author)
In this study a new approach to model the effect of vortex generators in integral boundary layer equations is described. Vortex generators (VGs) are commonly used on wind turbine blades to avoid early separation of flow which helps not only to increase the lift but also delays the stall. Delaying the stall angle of wind turbine blades will allow...
conference paper 2019
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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
document
Bahceli, G. (author), Atli-Veltin, B. (author), Wilbers, D. (author), Cebeci, H. (author)
Energy transition towards cleaner fuels and renewable energy brings the attention to liquefied natural gas (LNG) and liquid hydrogen (LH2) applications. Cryogenic storage temperatures make the suitable material selection for the construction of such applications difficult. Ultra-high molecular weight polyethylene (UHMWPE) thermoplastics are...
conference paper 2019
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Atli-Veltin, B. (author)
conference paper 2018
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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
document
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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D'Amour, S. (author), Bos, J.E. (author), Keshavarz, B. (author)
Visually induced motion sickness (VIMS) is a well-known sensation in virtual environments and simulators, typically characterized by a variety of symptoms such as pallor, sweating, dizziness, fatigue, and/or nausea. Numerous methods to reduce VIMS have been previously introduced; however, a reliable countermeasure is still missing. In the...
article 2017
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Cross, B. (author), Newmark, L. (author)
other 2017
document
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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Cotel, A. (author), Liard, A. (author), Desserouer, F. (author), Pichon, P. (author), van der Valk, N.C.J. (author)
Optical components such as diffraction gratings are widely used in Space-flight satellites to analyse light properties from soft-X rays to Infra-Red. The diffraction gratings are one of the key optical components of space-flight instruments and have to exhibit very high optical performances. TROPOMI (Tropospheric Monitoring Instrument) is a...
conference paper 2017
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Valk, P.J.L. (author), Simons, M. (author), Jetten, A.M. (author), Valiente, R. (author), Labeaga, L. (author)
INTRODUCTION: Bilastine is a new oral, second generation antihistamine used in the symptomatic treatment of allergic rhinoconjunctivitis and urticaria. It is considered a nonsedating antihistamine and might be recommended for use in pilots, pending research on the effects on flying-related performance under hypobaric conditions that prevail in...
article 2016
document
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
document
Pijloo, J.T. (author), Portegies Zwart, S.F. (author), Alexander, P.E.R. (author), Gieles, M. (author), Larsen, S.S. (author), Groot, P.J. (author), Devecchi, B.A. (author)
We have coupled a fast, parametrized star cluster evolution code to a Markov Chain Monte Carlo code to determine the distribution of probable initial conditions of observed star clusters, that may serve as a starting point for future N-body calculations. In this paper, we validate our method by applying it to a set of star clusters which have...
article 2015
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