• Tag Archives: “hydrogen peroxide”

    A clean green copter that emits just water, the Dragonfly

    Posted on by gavril

    What’s clean, green, has three blades, flies and emits just water? Certainly not a Bell helicopter on a liquid diet, we’re talking about the Dragonfly, a 230-pound helicopter that uses hydrogen peroxide for fuel, emitting no smelly carbon or other … Continue reading3

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