Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation

Tolunay Dağ; Tuğrul Oktay

doi:10.30518/jav.1708776

Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation

Abstract

As a result of the continuous development of technology, autonomous control and stability of UAVs are of critical importance. Stability, which is a product of the flight performance of aircraft, has been the subject of intensive study and different methods have been put forward to improve it. The aim of this study is to investigate the importance of the change in the longitudinal stability response of an UAV with a morphing wing. The effect of a 1.25 meter wingspan unmanned aerial vehicle with two different dihedral angles on its longitudinal stability is investigated. Longitudinal stability derivative coefficients were obtained. With the stability derivatives obtained separately for nine different wing geometries, the state space model of the UAV was obtained. The resulting state-space model is controlled by a PID controller and the longitudinal stability response is analyzed. As a result, the variation of the return time of the UAV to the equilibrium position with respect to the dihedral angle is obtained.

Keywords

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Details

Primary Language

English

Subjects

Aircraft Performance and Flight Control Systems

Journal Section

Research Article

Authors

Tolunay Dağ ^*
0000-0003-1514-5336
Türkiye

Tuğrul Oktay
0000-0003-4860-2230
Türkiye

Early Pub Date

October 9, 2025

Publication Date

October 19, 2025

Submission Date

May 29, 2025

Acceptance Date

August 25, 2025

Published in Issue

Year 2025 Volume: 9 Number: 3

DOI

https://doi.org/10.30518/jav.1708776

IZ

https://izlik.org/JA54KW25BP

Cite

RIS / Bibtex

APA

Dağ, T., & Oktay, T. (2025). Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation. Journal of Aviation, 9(3), 503-507. https://doi.org/10.30518/jav.1708776

AMA

1.Dağ T, Oktay T. Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation. JAV. 2025;9(3):503-507. doi:10.30518/jav.1708776

Chicago

Dağ, Tolunay, and Tuğrul Oktay. 2025. “Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles With Double Dihedral Angle Variation”. Journal of Aviation 9 (3): 503-7. https://doi.org/10.30518/jav.1708776.

EndNote

Dağ T, Oktay T (October 1, 2025) Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation. Journal of Aviation 9 3 503–507.

IEEE

[1]T. Dağ and T. Oktay, “Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation”, JAV, vol. 9, no. 3, pp. 503–507, Oct. 2025, doi: 10.30518/jav.1708776.

ISNAD

Dağ, Tolunay - Oktay, Tuğrul. “Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles With Double Dihedral Angle Variation”. Journal of Aviation 9/3 (October 1, 2025): 503-507. https://doi.org/10.30518/jav.1708776.

JAMA

1.Dağ T, Oktay T. Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation. JAV. 2025;9:503–507.

MLA

Dağ, Tolunay, and Tuğrul Oktay. “Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles With Double Dihedral Angle Variation”. Journal of Aviation, vol. 9, no. 3, Oct. 2025, pp. 503-7, doi:10.30518/jav.1708776.

Vancouver

1.Tolunay Dağ, Tuğrul Oktay. Performance Maximization of Longitudinal Flight Stability of Fixed Wing Unmanned Aerial Vehicles with Double Dihedral Angle Variation. JAV. 2025 Oct. 1;9(3):503-7. doi:10.30518/jav.1708776