The Boeing 777X will fly at transonic speeds similar to other widebody aircraft, while the Boom Overture will fly supersonic.

The gigantic General Electric GE9X turbofans that will power the largest widebody twinjet in aviation history, the 777-9, are also the biggest engines ever fitted to a commercial plane. The 777X ...

But the Boeing 777X’s maiden flight has been delayed because of issue with its GE9X engines. The longest passenger jetliner in the world was rolled out in March.

First introduced in 2013, the 777X will enter the market this decade in three different models, the company announced at the Paris Air Show.

The 777X, announced in May 2013, will come in two varieties, the 350-passenger 777-8X and the 400-passenger 777-9X. The twin-aisle planes are wide-body models, ...

The big technological breakthrough of the Boeing 777X wing is this: It will be very similar to the 787 Dreamliner wing, except a lot bigger. “In general, the reason we have have so much ...

Boeing’s 777X isn’t a particularly revolutionary airplane, but it nonetheless made headlines when it took its first flight over Washington state on Saturday. Here's why it's something to look ...

The 777X will fly for the first time a quarter century after the original 777 model’s debut in 1994. In a mark of the 777’s sales success since then, ...

Boeing rolled the first 777X out of its factory in Everett in March, but it soon encountered problems that delayed this test flight. In June at the Paris Air Show it said that excessive wear ...

The 777X family now includes two versions: the smaller 777-8 and the larger 777-9. The 777-9, the version slated for first delivery, is at 30 percent detailed design.

Boeing’s new jetliner, the 777X, took off on its maiden flight Saturday, starting the clock on expected reforms in how the Federal Aviation Administration certifies new aircraft in the wake of ...