The Naval Postgraduate School in Monterey, California took delivery of the Navy’s first ever hydrogen fuel cell powered rotary-wing unmanned aerial system (UAS) on 25 October 2019. The six-rotor UAS “HYCOPTER” has a blade tip-to-blade tip diameter of 7 feet, a takeoff weight of about 35 pounds with a five-pound payload, and a flight duration of about …
