@mashable
It's not that hard, if you understand lift coefficient for helicopter to control lift & stabilise itself as it descends/hovers etc
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Thanks. Twitter will use this to make your timeline better. UndoUndo
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@mashable
After it put another satellite into space!Thanks. Twitter will use this to make your timeline better. UndoUndo
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@mashable: Falcon 9 First Stage Landing | From Helicopter https://youtube.com/watch?v=ZCBE8ocOkAQ …#SavedYouAClickThanks. Twitter will use this to make your timeline better. UndoUndo
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