Wind tunnels were originally used to test aerodynamics then someone had the idea of flipping one upright jumping into the airflow and body flying was born the 120mph wall of air is easily strong enough to support your weight so you can freefall without jumping from a plane start with a safety brief from an instructor before being kitted out with specialist flight suits then step into the wind tunnel with your instructor where youll be lifted into the air for an incredible 10 minutes of b