Boeing's 777-9X world's biggest twin-engine jetliner to become reality
![Boeing's 777-9X world's biggest twin-engine jetliner to become reality](http://media.pn.am/media/issue/196/879/photo/145x145_thumb_photo_196879_19391c499.jpg)
The hinges of 777-9X will fold up, allowing the plane to shorten its wingspan when it is rolling across airport taxiways.
The hinges of 777-9X will fold up, allowing the plane to shorten its wingspan when it is rolling across airport taxiways.