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Sikorsky S-300C powertrain
"...When creating the electric helicopter demonstrator, the engineers from Sikorsky didn't spend their time modifying the S-300C from the grounds up to become the Firefly. The overall shape of the helicopter was maintained, its purpose likewise and, looked at from the outside, little sets it apart from the units you see flying overhead wearing police logos. What the engineers focused on was replacing the Lycoming engine altogether. They pulled it out and re..." Continue Reading →
Photo credits: Sikorsky
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