On the other hand, the EHang 184 was approved for testing in Nevada this year. It carries one passenger, is battery powered, and claims a flight time of 23 minutes. That's far too short for useful commuting, but I wouldn't bet against energy tech continuing to improve. Regulation will be a significant obstacle, but Uber hasn't been much deterred by existing laws which forbid their operations in many jurisdictions, as long as they are delivering a service customers value and not hurting anyone (except owners of million-dollar taxi medallions). I would expect the FAA to be a bit more contrarian, but it sounds like they are cooperating for now.The Federal Aviation Administration (FAA) is moving steadily ahead to safely integrate unmanned aircraft systems (UAS) into the largest, most complex air traffic systems in the world.