Ballard Power Systems (NASDAQ: BLDP; TSX: BLDP) announced that the company's subsidiary, Protonex, has successfully powered test flights of the ScanEagle unmanned aerial vehicle (UAV) with the Company's PEM (proton exchange membrane) fuel cell propulsion system. The ScanEagle is manufactured by Insitu (www.insitu.com), a wholly owned subsidiary of The Boeing Company. "These test flights have ["]