15-Hour Flight Time - MMC UAV Launches New Record-Breaking Hyd...
SHENZHEN, China, Sept. 21, 2019 /PRNewswire-AsiaNet/ -- 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 dron...
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