Our first #777X flight test airplane made its runway debut! Our teams performed a series of low-speed taxi tests, marking the first time this plane moved on its own power. This is one of many tests before the 777X takes to the skies later this year. | The Boeing Company

The Boeing #777X successfully completed its first test flight last Sunday, January 26. Congratulations to our customers and 777X team on this huge milestone as we continue our rigorous test program. Continue the journey with us, signup for updates here: boeing.com/commercial/777x/first-flight/index.page#/signup | The Boeing Company

The second of four Boeing #777X test airplanes took to the skies for the first time yesterday. The jet will now start testing handling characteristics as part of our rigorous test program. | The Boeing Company

JUST REVEALED: See the #777X flight deck for the first time and the new technologies on board! | Boeing in Washington

The journey begins: We’re officially starting production of the first 777X flight test airplane! Take a look as the most efficient twin-engine jet in the world starts to take shape. Explore our new #777X site to learn more: http://www.boeing.com/777x/reveal/ | The Boeing Company

Exclusive: Inside The Experimental Boeing 777X (2021) | Sam Chui