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By Bjorn Fehrm

April 25, 2024, © Leeham News: We are doing an article series comparing the capabilities of the Airbus A350-1000 and the Boeing 777-9. We looked at the development history of the aircraft and compared their size and payload capacity.

Now, we use our Aircraft Performance and Cost Model (APCM) to fly the aircraft on a typical route and compare their performance. We also look at their stage of development and the potential for future upgrades inherent in the design.

Summary:

• The A350-1000 has got its Maximum TakeOff Weight (MTOW) increased four times since entry into service.
• The latest MTOW hike to 322t gives the A350 a clear payload-range advantage over the 777-9. Any increase in the 777-9's MTOW will have to come after type certification.