Communications - Scientific Letters of the University of Zilina 2024, 26(1):A1-A10 | DOI: 10.26552/com.C.2024.007

Experimental Investigation of Performance of the Rotorcraft Directional Rudder

Andrej Novák ORCID...1, *, Karol ¦cisłowski ORCID...2, Rafał Kliza ORCID...2, Robert B±bel ORCID...3, Zbigniew Czyż ORCID...3, Paweł Karpiński ORCID...4
1 University of Zilina, Zilina, Slovakia
2 Department of Thermodynamics, Fluid Mechanics and Aviation Propulsion Systems, Lublin University of Technology, Lublin, Poland
3 Department of Airframe and Engine, Faculty of Aviation, Polish Air Force University in Deblin, Deblin, Poland
4 Department of Machine Operation and Production Process Management, Faculty of Production Engineering, University of Life Sciences in Lublin, Lublin, Poland

The paper presents the results of gyrocopter fuselage experiment testing in a wind tunnel. The model subjected to testing was made in 1:8 scale by 3D printing. The tests included the measurement of forces and aerodynamic moments acting on the model, for a variable fuselage sideslip angle (-20º to 20º), and for three different positions of the rudder setting (0º, +5º, +10º). The measurement was carried out at an airspeed of 25 to 26 m/s. Based on the measured values, aerodynamic drag coefficients, lift coefficient and aerodynamic moment coefficients with respect to all axes of the reference system, were determined. The measurements carried out have facilitated the derivation of diverse characteristics, validating our conclusions. The results and conclusions drawn from these experiments can be valuable in enhancing the design and functionality of rotorcraft rudders.

Keywords: gyrocopter, wind tunnel, aerodynamic research, directional rudder, sideslip angle
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The authors received no financial support for the research, authorship and/or publication of this article.

Conflicts of interest:

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Received: July 20, 2023; Accepted: October 23, 2023; Prepublished online: December 12, 2023; Published: January 8, 2024  Show citation

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Novák, A., ¦cisłowski, K., Kliza, R., B±bel, R., Czyż, Z., & Karpiński, P. (2024). Experimental Investigation of Performance of the Rotorcraft Directional Rudder. Communications - Scientific Letters of the University of Zilina, 26(1), A1-10. doi: 10.26552/com.C.2024.007
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