Aerodynamic Simulation and Control Analysis of an Aircraft Emergency Tailplane System

Aerodynamic Simulation and Control Analysis of an Aircraft Emergency Tailplane System | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Article Aerodynamic Simulation and Control Analysis of an Aircraft Emergency Tailplane System Dongfeng Yan, Zehang Zhao, Lu Ye, Ganchao Zhao, Fengming Li This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-6493866/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 30 Sep, 2025 Read the published version in Scientific Reports → Version 1 posted 10 You are reading this latest preprint version Abstract This study proposes an improved solution to the issue of aircraft tailplane elevator jamming by designing a spare tail wing system. This system incorporates a deployable, foldable spare tail wing that can be extended in emergency situations, offering additional pitch moment to the aircraft, thus providing supplementary pitch control. Both tailplanes utilize the classic NACA0012 airfoil, with the Spalart-Allmaras turbulence model employed, and a free-stream Mach number of 0.6. Fluid simulations of the tailplane system were conducted under conditions of horizontal tailplane jamming using a dynamic mesh approach. The results demonstrate that the deployment and deflection of the spare tail wing to an optimal angle can generate additional pitch moment, effectively mitigating the loss of control caused by horizontal tailplane failures. Physical sciences/Physics/Fluid dynamics Physical sciences/Engineering/Aerospace engineering spare tail wing tailplane computational fluid dynamics aviation safety Full Text Additional Declarations No competing interests reported. Supplementary Files videosmallaircraftselevatorstuckat30degreesupward.avi videosmallaircraftselevatorstuckat15degreesdown.avi largeaircraftsTHSblockedat20degreesanticlockwise.avi Cite Share Download PDF Status: Published Journal Publication published 30 Sep, 2025 Read the published version in Scientific Reports → Version 1 posted Editorial decision: Revision requested 04 Jun, 2025 Reviews received at journal 03 Jun, 2025 Reviewers agreed at journal 03 Jun, 2025 Reviews received at journal 30 Apr, 2025 Reviewers agreed at journal 30 Apr, 2025 Reviewers invited by journal 30 Apr, 2025 Editor assigned by journal 30 Apr, 2025 Editor invited by journal 29 Apr, 2025 Submission checks completed at journal 28 Apr, 2025 First submitted to journal 21 Apr, 2025 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-6493866","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":450500357,"identity":"23cc8ac2-f194-482a-8510-5ec977186703","order_by":0,"name":"Dongfeng 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