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| Boeing 777-9X will have hinges on its wingtips |
Engineers are moving forward with building the world's biggest twin-engine jetliner. They're calling it the 777-9X, the first aircraft of the 777X family. For one thing, there's the wing: It's big. It's so big, in fact, they had to fold it.
Specifically, the 777-9X will have hinges on its wingtips. The hinges will fold up, allowing the plane to shorten its wingspan when it's rolling across airport taxiways. It will be the first design of its kind on any commercial airliner, Boeing says.
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