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Simulated pilot-in-the-loop testing of handling qualities of the flexible wing aircraft

Portapas, Vilius; Cooke, Alastair

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Authors

Alastair Cooke



Abstract

© 2020 The Author(s). Published by VGTU Press. This article aims to indicate the differences between rigid and flexible wing aircraft flying (FQ) and handling (HQ) qualities. The Simulation Framework for Flexible Aircraft was used to provide a generic cockpit environment and a piloted mathematical model of a bare airframe generic high aspect ratio wing aircraft (GA) model. Three highly qualified test pilots participated in the piloted simulation trials campaign and flew the GA model with both rigid and flexible wing configurations. The results showed a negligible difference for the longitudinal HQs between rigid and flexible wing aircraft. However, significant changes were indicated for the lateral/directional HQs of the flexible wing aircraft. A wing ratcheting phenomenon manifested itself during the roll mode tests, the spiral mode exhibited neutral stability and the Dutch roll mode shape changed from a horizontal to a vertical ellipse. The slalom task flight tests, performed to assess the FQs of the aircraft, revealed the degradation of both the longitudinal and lateral/directional FQs.

Citation

Portapas, V., & Cooke, A. (2020). Simulated pilot-in-the-loop testing of handling qualities of the flexible wing aircraft. Aviation, 24(1), 1-9. https://doi.org/10.3846/aviation.2020.12175

Journal Article Type Article
Acceptance Date Feb 9, 2020
Online Publication Date Mar 19, 2020
Publication Date Mar 19, 2020
Deposit Date Mar 23, 2020
Publicly Available Date Apr 22, 2020
Journal Aviation
Print ISSN 1648-7788
Electronic ISSN 1822-4180
Publisher Taylor & Francis
Peer Reviewed Peer Reviewed
Volume 24
Issue 1
Pages 1-9
DOI https://doi.org/10.3846/aviation.2020.12175
Keywords Aerospace Engineering
Public URL https://uwe-repository.worktribe.com/output/5715796
Additional Information This article is maintained by: Vilnius Gediminas Technical University; Content Type: Research Article; CrossChecked: Yes; Peer Reviewed: Yes; Review Process: Double blind; Received: 2019-11-20; Accepted: 2020-02-09; Published: 2020-03-19; Copyright: @ 2020 Author(s). Published by VGTU Press

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