Boeing's 777X is just one plane in a long history of passenger planes from the contractor. It's so wide that its wingtips fold, but why do they need to?

It's unique, but not a new design, and will allow the aircraft to serve both Category E and Category F airports.

Breakthroughs, discoveries, and DIY tips sent ... have wings that stretch just under 213 feet. So why endure the added length, and thus the complexity that goes with the folding mechanisms ...

When the new widebody 777x enters service ... 777-9—the wings will measure 235 feet from tip to folding tip. That’s wider than the wings on existing Boeing 777s or the 787, and about double ...

The idea to create folding wing tips stemmed from airport gate space limitations. Like pilot training, Boeing didn't want the new 777X to require costly airport infrastructure changes. The 777X ...

US regulators have detailed a series of protective safety measures proposed for the Boeing 777X's folding wing-tips, having drawn comparisons with the risks posed by unreleased gust-locks. The US ...

The idea to create folding wing tips stemmed from airport gate space limitations. Like pilot training, Boeing didn't want the new 777X to require costly airport infrastructure changes. The 777X has a ...