O. Krawehl, L.-H. Lemke, F. Thielecke, M. Hillebrand

The improvement of aerodynamic performance is a key research aspect in the context of current and modern aircraft design. This is represented in multiple approaches addressing future aircraft optimization. The present study places a particular emphasis on the design of the wing and the corresponding flight control systems, such as high-aspect-ratio wings featuring laminar flow technologies and load alleviation systems. For the realisation of these approaches, it is necessary to rethink the functions of leading-edge devices and extend their capabilities from a simple high-lift system to a multifunctional control system. This design, enabling the proposed multifunctionality of high lift, load alleviation, and laminar flow, is yet to be developed, and it is therefore unclear whether the integration of such a system on the leading edge is feasible. Especially the resulting requirements and constraints regarding the actuation system of a multifunctional leading-edge control device pose significant challenges to the realisation of such a system. This paper aims to investigate the correlating and contradicting factors resulting from the combination of high-lift and load alleviation functionalities within one system. Furthermore, challenges regarding the system design are indicated.

Deutscher Luft- und Raumfahrtkongress 2025, Augsburg

Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn, 2026

Conference Paper

englisch

21,0 x 29,7 cm, 11 Seiten

urn:nbn:de:101:1-2601211409474.177082783728

10.25967/650243

flight control system, high lift, load alleviation, laminar wing, actuation system, system design

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Krawehl, O.; Lemke, L.-H.; et al. (2026): Benefits and Challenges of a Multifunctional Leading-Edge System for High-Efficiency Transport Aircraft. Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V.. (Text). https://doi.org/10.25967/650243. urn:nbn:de:101:1-2601211409474.177082783728.

21.01.2026