The droop nose function

The droop nose function
Normally, the flaps and slats are lowered during take-off and landing to provide the necessary lift at low speeds. This creates a gap between the wings and slats, which can be seen on the right on the front edge of the wing. Air can flow through the gap from the underside of the wing to the top – generating noise. With the development of the smart droop nose (morphing wing leading edge), the researchers have solved this problem. The smart droop nose morphs in such a way during take-off and landing that the leading-edge slat is no longer needed. The leading edge can be lowered by up to 20 degrees with virtually no loss of lift.
Credit:

DLR (CC-BY 3.0).

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