Boeing’s 777X design team is tasked with introducing significant structural and propulsive advances while keeping other systems changes to a minimum, so it is no surprise that in most respects the next-generation twin will be difficult to distinguish externally from the 777-300ER of today. Yet as Boeing digs deeper into the design of the new 777-8X and -9X models that will become its flagship long-haul products for the 2020s and beyond, the company is invoking more visible changes ...


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