The driver operates the steering controls using a lightweight steering system and throttle through a foot pedal to enable him to keep both hands on the wheel.
The navigator keeps an eye on the position of all the other boats in the area and so talks the driver through the corners avoiding any collisions. He also looks after the other controls including GPS, compass and bow tank.
The complete boat is a powerful package, been capable of speeds up to 76mph and yet strong and agile enough to cope with rough weather racing.