IEEE Spectrum is reporting the FAA has issued a special airworthiness certificate to allow Google founder Sergey Brin’s LTA Research to flight test a 400-foot-long hybrid-electric airship, Pathfinder 1, at Moffett Field near San Francisco. LTA has been building the massive aircraft, the largest since the Hindenburg, since 2015. A second larger airship, which is … Continue reading Sergey Brin’s New Airship Cleared For Flight Testing