Boeing Hits the Brakes on X-66, Its Flagship Sustainable Aircraft Project

Boeing X-66

In a striking shift of priorities, Boeing has announced it will pause development of its highly anticipated X-66 Sustainable Flight Demonstrator—once heralded as the company’s most promising leap toward next-generation aerodynamic efficiency. The decision, revealed in an internal memo from Chief Technology Officer Todd Citron, effectively sidelines a program that symbolized Boeing’s commitment to a […]