Tim Hepher (November 4, 2013). "Boeing seen in advanced talks to make 777X near Seattle". Guy Norris (May 1, 2013). "Boeing Board Gives Approval To offer 777X". Aviation Week & Space Technology. This was adopted in May 2022 with an announcement for an order of seven 777-eight Freighters destined for Slots Lufthansa Cargo operations. The 777-8 should characteristic a 13,000 lb (5.9 t) greater MTOW over the 775,000 lb (352 t) of the 777-9, Casino slots for an improved range from 8,690 to 9,460 nmi (16,090 to 17,520 km).

The introduction of the category 777 is reportedly set to attain a 10% discount in journey time over older stock, free slots online attributed to its larger rate of acceleration. During development testing, aeroelastic flutter was observed throughout a test that measured how the aircraft carried out if its wing-to-strut be part of fitting fails at the same time the fuel tanks in the horizontal stabilizer have been crammed at over 15% of their capability.

The new trains would enhance capacity by 60%, Best online Slots and Online slots free reduce journey times as a result of quicker acceleration. Boeing additionally proposed an interim solution to Qantas, Slots assumed to comprise a 777-9 with auxiliary gasoline tanks and diminished seating capability.

The 777-9 is stretched by three further seat rows and flies 250 nmi (460 km; 290 mi) farther than the 777-300ER with about the same weight. Using 4 engines, it would seat between 180 and Slots 200 passengers, and have a spread of 6,000 nautical miles (11,000 km; 6,900 mi).

In November 2022, it was revealed that the GE9X engine on one of the 4 test 777-9s had suffered a technical problem on October 6. Boeing subsequently paused the test program whereas GE investigated the problem. Aircraft Numbers 1 and 6 were deliberate to be used for floor exams; 4 777-9s (No.