The Krasnodar Higher Military Aviation School for Pilots (KVVAUL) has developed a concept for an aircraft wing with variable geometry. The aerodynamic element will be able to adapt to different flight modes – from takeoff to supersonic speeds; documents for it have been registered in the FIPS database.
The key idea of the designers is movable consoles that change span and sweep angle directly in flight. At low speeds, the wing "unfolds" – the span increases, and the sweep angle decreases to approximately 16°, which increases lift and facilitates takeoff and landing.
When accelerating to supersonic speeds, the scheme changes. The consoles retract inward, the wing becomes more compact, and the sweep angle increases to 72°. This mode is designed for flights at speeds exceeding Mach 2 and reducing aerodynamic drag.
Unlike traditional variable-sweep wings, the KVVAUL scheme combines rotation and span change. This allows for more flexible aerodynamic tuning for a specific mode without significantly complicating the design.
