A clean green copter that emits just water, the Dragonfly

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 environment-harming products, just water. With speeds of up to 100 knots, the Solo helicopter can stay up in the air for a full 90 minutes, before it needs refueling. The US military are keen on the developments, and are sincerely looking forward to rid fossil fuel use, for both, security reasons and to help save the environment. Using two small 102 horsepower-equivalent rocket motors that are mounted on the rotor itself, the Dragonfly is easy to fly, requiring just a hand and no pedal work.

The helicopter costs as much as $120,000 though, a bit too much taken that it gulps down 11 gallons an hour of hydrogen peroxide, each costing about $4. We sure need alternative fuels, that keep our energy clean, but our pockets full too.
[inhabitat]