For the first time ever, a production Lockheed Martin F-35B Lightning II has performed a vertical takeoff (VTO) maneuver, followed by a short hover at low altitude and vertical landing. Though the US Marines had required such a function from the outset of the program (which has already been performed by prototype F-35Bs) it can only be used for very short jaunts. That's because the $300 million jet, like the Harrier before it, can't
