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 five-foot square, capable of flying up to 15 minutes while carrying a two-pound 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.