When the world opens its doors for the new state-of-art electric vehicles in need of the rising global eco-challenges; how could the flying machines stay back in line?! Three test-flights were undertaken by three different firms on Electric Helicopter, the upcoming future. One of it was the world's leading helicopter-manufacturing company Eurocopter , that tested its single-engined helicopter powered by lithium-ion batteries. Now that's one great technology to watch out for in near future!
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