Engineering Excellence A strong engineering foundation enables us to build and maintain our products with safety, quality, integrity and sustainability in the factory and in service. Our customers expect it. That’s why we will always take the time to get the engineering right. Sustainable: Boeing Advances Transonic Truss-Braced Wing Concept Boeing is advancing the design of the Transonic Truss-Braced Wing (TTBW) concept, which has the potential to make future airplanes more aerodynamic and environmentally sustainable. Under this configuration, fuel efficiency is estimated to improve by 9%. It is also designed to offer unprecedented aerodynamic efficiency while flying at Mach 0.80 — consistent with the current speed of commercial air travel. In partnership with NASA under the Sustainable Flight Demonstrator and the Subsonic Ultra Green Aircraft Research programs, Boeing is continuing to research and develop the TTBW concept before it is evaluated for future Boeing aircraft. Boeing is studying the Transonic Truss-Braced Wing concept, designed to be more aerodynamic and fuel efficient, through a collaboration with NASA as part of the Subsonic Ultra Green Aircraft Research program. (Boeing illustration) Engineers are problem solvers at heart. We are partnering across our industry to tackle one of the biggest challenges of our time, decarbonizing aerospace. Many people are really passionate and energized by this challenge and it inspires me daily to be a part of that. The determination and collaboration of many is what we need to get there.” Ellen Ebner, Director, Sustainable Technologies, Sustainability & Future Mobility 2022 Sustainability Report 35 Contents People Introduction Communities Operations Reporting Approach & Governance Products & Services