If Uber's recently launched self-driving cars surprised you, wait for the company's "flying" vehicles. Speaking with Recode, Uber's head of products said the company is research small planes that can vertically take off and land, so that they can be used for short-haul flights in cities. From the report:The technology is called VTOL -- which stands for vertical takeoff and landing. Simply put, VTOL is an aircraft that can hover, take off and land vertically, which would also describe a helicopter. But, unlike the typical helicopter, these planes have multiple rotors, could have fixed wings and perhaps eventually would use batteries and be more silent. In time, like cars, such aircraft would be autonomous. Jeff Holden said that he has been researching the area, "so we can someday offer our customers as many options as possible to move around." He added that "doing it in a three-dimensional way is an obvious thing to look at."