A California-based company has taken a science fiction design similar in concept to “Star Wars” speeder bikes, which uses helicopter dynamics to lift and propel this motorcycle-sized vehicle across rough terrain. The firm Aerofex has fixed the stability issue by including a control bar at the the users knee level that allows the pilot to better lean and balance the vehicle. "It essentially captures the translations between the two in three axis (pitch, roll and yaw), and activates the aerodynamic controls required to counter the movement — which lines the vehicle back up with the pilot," De Roche told InnovationNewsDaily. "Since [the pilot's] balancing movements are instinctive and constant, it plays out quite effortlessly to him." The vehicle has been tested in California’s Mojave Desert and in more crowded conditions. Currently, the Aerofex machine is being tested at a top speed of 30 mph and a max height of 15 feet above the ground.