New | Wills Wing Falcon 4 170 Blue LE/Orange with Black Slip stream downtubes, black speed bar wheel kit, and trailing edge speed battens for improved longevity and performance. The Falcon 4 represents twenty years of cumulative refinement of the most popular and successful glider in Wills Wing’s history. Since 1994, the Falcon series of gliders have represented the most accessible, stress-free soaring performance available in hang gliding, and have helped to introduce an entire generation of new pilots to the sport.