The Rigifoil is a re-enforcement on the leading edge. It has several functions:

• keeps the airfoil in perfect shape, producing a smooth airflow over the wing and a constant pressure inside it. As a result, the glider retains more energy, pitches less and glides better.
• makes the leading edge more resistant to pressure on the top surface, giving increased acceleration, stability at speed, and maximum speed.
• holds open the air inlets, allowing fast and progressive inflation and re-inflation.



The overall effect is like an extra, invisible cell in the glider.

The Rigifoil is available in the Boomerang 4 and Boomerang Sport standard production models. (It was also available on the Nomad and Boomerang II & III.) Gin Gliders Inc. holds an international patent (no. PCT/KR00/00665) on this system.