Affiliations: Air Transport & Operations, Faculty of Aerospace Engineering, Delft University of Technology, Delft, The Netherlands
Correspondence:
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Corresponding author: Richard Curran, Air Transport & Operations, Faculty of Aerospace Engineering, Delft University of Technology, Kluyverweg 1, 2629 HS Delft, The Netherlands. E-mails: r.curran@tudelft.nl, journalofaerospaceoperations@tudelft.nl.