A flight test with a simplified HLFC system on the vertical tail plane of an A320 aircraft was performed in April/May 2018. In this paper the preparation of the flight test data for evaluation with linear stability theory on the basis of sample measurements is discussed. Then, the correlated transition N-factors are presented and compared them with the results of the A320 flight tests of 1998. (source: https://arc.aiaa.org/doi/abs/10.2514/6.2021-1305)

At the 56th 3AF International Conference on Applied Aerodynamics - AERO2022 , an annual event organised by the French Aeronautics and Aerospace Society (3AF) at French venues between researchers of all nations leading an activity in aeronautics or aerospace, ONERA will present their work on “Numerical aerodynamic performance assessment of HLFC wing configurations using far-field drag analysis”.

At the 56th 3AF International Conference on Applied Aerodynamics - AERO2022 , an annual event organised by the French Aeronautics and Aerospace Society (3AF) at French venues between researchers of all nations leading an activity in aeronautics or aerospace, DLR will present their work on “Effect of tolerances of surface irregularities on laminar-turbulent transition for HLFC wings”.

At the 56th 3AF International Conference on Applied Aerodynamics - AERO2022 , an annual event organised by the French Aeronautics and Aerospace Society (3AF) at French venues between researchers of all nations leading an activity in aeronautics or aerospace, ONERA will present their work on “High-speed wind-tunnel investigation of major aerodynamic challenges for HLFC technology”.

Hybrid laminar flow control (HLFC) is an aircraft technology with the potential to reduce fuel consumption by actively sucking air from the boundary layer on the leading edge, thus increasing laminar flow length and decreasing drag. Especially in the context of a greener aviation and possible new fuels, such as hydrogen or bio fuels, saving fuel becomes increasingly important. Within the Clean Sky 2 program, this technology is investigated for the main wing (HLFC-Win project) and for the horizontal tailplane (ECHO project). In both projects, the compressor and the corresponding inverter are key components in order to ensure the HLFC functionality.

The paper “The influence of high spanwise chamber extent on HLFC performance” presents the result of analysis of the spanwise extent of the internal HLFC plenum chamber with regard to the magnitude of these pressure losses and their potential impact on the HLFC performance along with an estimation of the HLFC wing design impact.

The Aerospace Europe Conference 2021 will be held in Warsaw, 23-26 November 2021. The conference will be organized by CEAS together with Polish Society of Aeronautics and Astronautics , Łukasiewicz Research Network – Institute of Aviation & Warsaw University of Technology.

Within the scope of the Aerospace Europe Conference 2021 the topic “Development of a Long-Range Reference Aircraft using a Conceptual Aircraft Design Environment” will be presented by DLR.

The German Aerospace Society (DGLR) invites experts and young professionals from August 31 to September 2, 2021 for networking and scientific exchange in the research and technology center ECOMAT (Center for Eco-efficient Materials & Technologies) and on the virtual congress platform.

Within the scope of the German Aerospace Congress (DLRK) the topic “Production and modification cost assessment with manLYFE for a wing with hybrid laminar flow control” will be presented by DLR.

This virtual event focuses on aerostructures, aircraft design, airframe and engine manufacturing, onboard systems, tests and certification technology demonstrator development.