BioniX² The Corset

Product catalog summary

Introduction
The document introduces 'THE CORSET', a patented wing configuration control system by Air Création, designed to enhance the maneuverability and performance of flexwing aircraft across a wide range of speeds.

Challenges with Fixed Geometry Wings
1. Roll Responsiveness: Fixed geometry wings exhibit sluggish roll at low speeds and hypersensitivity at high speeds, complicating control and making low-speed approaches difficult.
2. Pitch Trim Limitations: Traditional pitch trim systems only adjust the control bar's trim position, limiting optimization to a single flight speed and complicating control at speed extremes.

The CORSET System
The CORSET system offers a more intuitive alternative to pitch control by adjusting the wing's geometry to match the desired speed. It modifies the central tension of the sail, affecting the wing's billow, twisting, and profile to optimize performance across different speeds.

Advantages of THE CORSET
Slow Speeds: The system increases the wing's billow and twisting, enhancing roll maneuverability and lift, which is beneficial for steep approaches and landings.
High Speeds: By reducing billow and twisting, the system decreases drag, improving aerodynamic performance and allowing for higher cruising speeds with reduced power consumption.

Operational Configurations
Low-Speed Configuration: Increased billow and twisting provide safe maneuvering and high lift, reducing cruising speed.
High-Speed Configuration: Decreased billow and twisting reduce drag, enhancing speed and stability.

Conclusion
THE CORSET system effectively combines ease of use with enhanced performance, allowing pilots to adjust wing geometry dynamically for optimal flight characteristics at varying speeds.

Catalog excerpts

Wing with variable configuration

Open the catalog to page 1

THE CORSET The current state of technology 1/ Responsiveness in roll of fixed geometry flexwing depends on the wing’s flight speed, which is sluggish at slow speeds and jittery at high speeds. For modern machines with a wide speed range this leads to very poor maneuverability at low speeds that prohibits practical operation, and leads to hypersensitivity in roll at high speeds making control difficult, or even dangerous. In addition, low speed approaches are not recommended. In practice fast wings are unable to make slow approaches and land in a short distance, especially in turbulent conditions...

Open the catalog to page 2

Innovation THE CORSET In action Slow speeds : Approach and landing The billow of the wing is very high, allowing for significant differential movements and providing the best handling roll. Twisting of the wing tips is also at maximum, the central part of the wing stalls first to ensure safe and predictable handling in large angles. The central profile is concave, providing the best ratio of lift and ensuring the lowest possible minimum speed. The increase in the billow and twisting increases drag, which is favorable under conditions of steep approach. Tension released : Twisting wing tip, Increased...

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High speeds : Trips, Navigation, strong wind Tension increased : Increased twisting in general Decreased prominence of central profile Increased central reflex Billow decreased Center of thrust retracted. This configuration creates : Reduced drag Effortlessness in low pitch, roll stability AND increased speed cruise The billow is very low, providing perfect stability without the commitment of roll movement. Twisting of the wing tips is minimal, providing the best aerodynamic performance of low angles. The central profile is relaxed, ensuring the preservation of perfect pitch stability despite...

Open the catalog to page 4

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The Corset® system BioniX 13
4 Pages