The whole point of the helicopter concept is that it creates its own lift with the motorised rotor, not needing any wind to do so, unlike a gyrocopter which needs a distinct net headwind (in motorised versions this is provided by a conventional propeller creating forward motion) to remain aloft. I don't understand/accept the statement at face value. In case of a wind the rotor is tipped/inclined to counter the wind in order to hover over a fixed location, otherwise the rotor turns horizontally with the pitch set to counter the aircraft's weight.