American manufacturer Boeing’s two newest airliners are the widebody 777X and the narrowbody 737 MAX. These are next-generation variants of existing Boeing aircraft, the hugely successful 777 and 737, rather than brand-new designs in their own right. Ahead of the 737 MAX’s recertification, the two were pictured together in Renton, Washington. This image depicts the striking contrast in size between the two next-generation airliners,