In this episode, the Roswell Flight Test Crew speaks with Tomas Pribanic, the founder and CEO of Undefined Technology, based in south Florida. The company has built a prototype drone of approximately the same dimensions and configuration as a conventional multirotor – but without propellers. Instead, it uses charged ions that exist in the atmosphere and attracts or repels those ions as needed to develop thrust and maneuver. The prototype is fivefoot square, capable of flying up to 15 minutes while carrying a twopound payload. Owing to the lack of propellers, the aircraft is virtually silent in flight, making it a good candidate for cargo delivery and other missions in the urban environment where noise can be an issue.