2026 05 28

INDUSTRY: A Major Milestone: BeLightning’s High-Tech Breakthrough for the F-35

A portion of the global F-35 fleet will henceforth be equipped with a Belgian-made horizontal tail. With this, the Belgian aerospace industry is delivering a key component responsible for the aircraft's stability and control during flight.
The horizontal tail consists of two movable horizontal stabilizers, complemented by actuators that control the movement and advanced flight control hardware. These stabilizers, manufactured in Belgium, form an essential part of the flight control system. During flight, they ensure the aircraft's stability, precise and immediate control responses, and safe handling at high speeds and under heavy loads.
To guarantee maximum control under all conditions, the system utilizes high-tech innovations. Each stabilizer is driven by Electro-Hydrostatic Actuators (EHAs), which combine electrical and hydraulic technology for powerful and highly precise movements. In addition, each stabilizer is equipped with a backup safety system, the Horizontal Tail Centering Actuator (HTCA), installed in parallel with the main actuators. This system automatically takes over control in the event of an electrical failure or internal fault, ensuring that maneuverability is maintained and operational safety is significantly enhanced.
This technical complexity, combined with the stringent requirements regarding the aircraft's stealth capabilities, translates into exceptionally high demands on the industry. Consequently, Belgium delivers a highly specialized contribution to the F-35 program, based on advanced aerospace expertise and precision manufacturing processes. This includes the processing of metals and composite materials, production and assembly processes with extremely strict tolerances, and rigorous quality and control procedures in accordance with international aviation and safety standards. These requirements not only highlight the complexity of modern fighter jets but also demonstrate the high level of quality within the Belgian industry.
The production of the horizontal tail is managed by BeLightning, a joint venture between Asco Industries, Sabca, and the Sonaca Group, working in close cooperation with Lockheed Martin and BAE Systems. Production is divided across three Belgian sites: composite manufacturing at Sabca Limburg, metal production at Asco Industries, and final assembly at Sonaca. This final assembly takes place in a specialized facility equipped with the latest generation of machinery for surface treatment and precision drilling. Sonaca builds upon years of experience in producing complex aircraft components within international aviation programs.
The Belgian production of the horizontal tail goes far beyond a purely industrial contract; it represents a strategic opportunity and strengthens Belgium's position within the international defense and aerospace value chain.

Info and images: Directoraat Generaal Material Resources, Belgain Defensie, Belgian Air force, Hoofd communicatie DG MR Moens K. - de Ribaucourt F. - Moors M.
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Source: Aviation Day.