You're flying a wing. It stalls if you get too slow. Turns must be coordinated like an airplane. The handlebar controls yaw. You control the roll axis by shifting your weight.
Pitch is taken care of by the front foil and surface sensor.
It's a very elegant design. Anything not needed for flight has been removed. It is very well built of high quality annodized aluminum extrusions. Our eight year old, Betty K. on the Trampofoil April 28,1999. Her range is now up to 30 meters.