Another pair of heavy-duty partners, Ballard Power Systems of Canada, normally powering city buses; and Boeing, through its subsidiary Insitu, team to create and fly viable fuel cell systems for drones. Insitu’s ScanEagle is already a world-beater for range and endurance, but it uses an internal-combustion engine (ICE), that although frugal, is not entirely green. Green Car Congress reports, “ScanEagle is 1.55 meters (5.1 feet) in length, has a wingspan of 3.11 meters (10.2 feet) and [a] maximum takeoff weight of 22 kilograms (48.5 lbs). The UAV can fly at a maximum speed of 41.2 meters per second (80 knots), reach a ceiling of 5,944 meters (19,500 feet),” and has flown over one million mission hours, making it a leader in multiple applications. Ballard’s Protonex® fuel cell systems have been used for over a decade to power drones of varying sizes, but all with ranges and endurance equaling or exceeding most of their ICE cousins. Improving the Breed In a December …