Wake-Tailplane Interaction of a Slingsby Firefly Aircraft

Nicholas J. Lawson; Simon G. Davies; Bidur Khanal; Rein I. Hoff

doi:10.3390/aerospace9120787

Wake-Tailplane Interaction of a Slingsby Firefly Aircraft

Nicholas J. Lawson, Simon G. Davies, Bidur Khanal, Rein I. Hoff

School of Future Transport Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

103 Downloads (Pure)

Abstract

This paper presents in-flight measurements of the interaction of the wing wake of a stalled Slingsby T67 Firefly light aircraft with the aircraft tailplane. Tailplane data was recorded by a GoPro360 camera and analyzed using spatial correlation methods. The tailplane movement and corresponding spectra indicate that the aerodynamic wake shedding frequency closely matches the resonant frequency of the tailplane, resulting in a significant excitation of the structure during heavy stall. Large magnitude, lower frequency tailplane movement was also identified by analysis of the pitch attitude from the image data, with results consistent in post-stall behavior reported by previous modelling and measurements.

Original language	English
Article number	787
Number of pages	10
Journal	Aerospace
Volume	9
Issue number	12
DOIs	https://doi.org/10.3390/aerospace9120787
Publication status	Published - 2 Dec 2022

Bibliographical note

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

Keywords

aerodynamic stall
wake body interaction

ASJC Scopus subject areas

Aerospace Engineering

Access to Document

10.3390/aerospace9120787Licence: CC BY

PublishedFinal published version, 6.31 MBLicence: CC BY
aerospace-09-00787-v2Final published version, 8 MBLicence: CC BY

Cite this

@article{9ed6d4eb618c41b49d89ea3c53fd222a,

title = "Wake-Tailplane Interaction of a Slingsby Firefly Aircraft",

abstract = "This paper presents in-flight measurements of the interaction of the wing wake of a stalled Slingsby T67 Firefly light aircraft with the aircraft tailplane. Tailplane data was recorded by a GoPro360 camera and analyzed using spatial correlation methods. The tailplane movement and corresponding spectra indicate that the aerodynamic wake shedding frequency closely matches the resonant frequency of the tailplane, resulting in a significant excitation of the structure during heavy stall. Large magnitude, lower frequency tailplane movement was also identified by analysis of the pitch attitude from the image data, with results consistent in post-stall behavior reported by previous modelling and measurements.",

keywords = "aerodynamic stall, wake body interaction",

author = "Lawson, {Nicholas J.} and Davies, {Simon G.} and Bidur Khanal and Hoff, {Rein I.}",

note = "This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). ",

year = "2022",

month = dec,

day = "2",

doi = "10.3390/aerospace9120787",

language = "English",

volume = "9",

journal = "Aerospace",

issn = "2226-4310",

publisher = "MDPI",

number = "12",

}

TY - JOUR

T1 - Wake-Tailplane Interaction of a Slingsby Firefly Aircraft

AU - Lawson, Nicholas J.

AU - Davies, Simon G.

AU - Khanal, Bidur

AU - Hoff, Rein I.

N1 - This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

PY - 2022/12/2

Y1 - 2022/12/2

N2 - This paper presents in-flight measurements of the interaction of the wing wake of a stalled Slingsby T67 Firefly light aircraft with the aircraft tailplane. Tailplane data was recorded by a GoPro360 camera and analyzed using spatial correlation methods. The tailplane movement and corresponding spectra indicate that the aerodynamic wake shedding frequency closely matches the resonant frequency of the tailplane, resulting in a significant excitation of the structure during heavy stall. Large magnitude, lower frequency tailplane movement was also identified by analysis of the pitch attitude from the image data, with results consistent in post-stall behavior reported by previous modelling and measurements.

AB - This paper presents in-flight measurements of the interaction of the wing wake of a stalled Slingsby T67 Firefly light aircraft with the aircraft tailplane. Tailplane data was recorded by a GoPro360 camera and analyzed using spatial correlation methods. The tailplane movement and corresponding spectra indicate that the aerodynamic wake shedding frequency closely matches the resonant frequency of the tailplane, resulting in a significant excitation of the structure during heavy stall. Large magnitude, lower frequency tailplane movement was also identified by analysis of the pitch attitude from the image data, with results consistent in post-stall behavior reported by previous modelling and measurements.

KW - aerodynamic stall

KW - wake body interaction

UR - http://www.scopus.com/inward/record.url?scp=85144643488&partnerID=8YFLogxK

U2 - 10.3390/aerospace9120787

DO - 10.3390/aerospace9120787

M3 - Article

AN - SCOPUS:85144643488

SN - 2226-4310

VL - 9

JO - Aerospace

JF - Aerospace

IS - 12

M1 - 787

ER -

Wake-Tailplane Interaction of a Slingsby Firefly Aircraft

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this