WARNING: ice-cold engine sounds below ❆ Having gone through close to 3,000 hours and 4,000 cycles of rigorous testing, the GE9X engine will enable world-class reliability and performance at entry into service. | GE

The GE9X is a total monster. It’s the first jet engine I’ve worked on that is nearly the size of TWO of me. That’s right, two Jon Ohmans. And while the fan diameter of this beast is 134 inches, the GE9X remains the most fuel-efficient jet engine in its class we’ve ever created. | GE

The GE9X engine lifted off on March 13 under wing of GE Aviation’s 747 flying testbed in Victorville, California, for its first flight test | Aviation Tv

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