Military aircraft have done this for decades to deal with the confined space on aircraft carriers. It's not a new idea, nor any kind of new technology.
Do you have any aircraft on mind that can unfold its wing while flying? (I'm aware of variable-sweep wing which can reconfigure in flight, or foldable wings that will be fold on the ground before parking).
Do you have any aircraft on mind that can unfold its wing while flying? (I'm aware of variable-sweep wing which can reconfigure in flight, or foldable wings that will be fold on the ground before parking).