China develops first 20-kg hydrogen-powered unmanned helicopter with dual propulsion systems for low-altitude economy

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A Chinese research team has developed China's first 20-kilogram-class hydrogen-powered unmanned helicopter, while developing two propulsion systems: one powered solely by a pure hydrogen fuel cell and the other combining hydrogen-lithium hybrid technologies to provide greener propulsion for the low-altitude economy, the Science and Technology Daily reported on Friday.

China's first 20-kilogram-class hydrogen-powered unmanned helicopter undergoes offshore flight testing. Photo: Screenshot from the Science and Technology Daily

A 50-kilogram hydrogen-powered unmanned aerial vehicle developed by China recently completed a 30-hour continuous flight, setting a new ...

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