15-Hour Flight Time – MMC UAV Launches New Record-Breaking Hydrone

SHENZHEN, China, Sept. 20, 2019 /PRNewswire/ — MMC UAV launched its new hydrone Griflion H, with a record-breaking 15-hour flight time on September 17, 2019 in Germany during the InterGEO 2019, the world’s largest geoinformation fair. It is a hydrogen-powered vertical take-off and landing drone with an integrated design and MMC-developed hydrogen fuel battery with […]

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