Sustainable Flight Demonstrator Project

January 19, 2023

NASA and Boeing will partner in the development and flight test of a full-scale Transonic Truss-Braced Wing demonstrator aircraft under SFD project. The partnership aims to revolutionize the commercial aviation industry through a much more fuel-efficient design of narrowbody airliners

How SFD Project will work?

The project aims to engage with industry, academia, and other government organizations to identify, select, and mature key airframe technologies, such as new wing designs, that have a high probability of transition to the next generation single-aisle seat class airliner
The project is one of the key components of the Sustainable Flight National Partnership
NASA and Boeing will invest over $1 billion to build, test, and fly a full-scale demonstrator aircraft this decade
The aircraft, currently known as the Sustainable Flight Demonstrator (SFD), will test the Transonic Truss-Braced Wing (TTBW) concept
The TTBW concept involves a plane with extra-long, thin wings stabilized by diagonal struts, resulting in a more fuel-efficient aircraft
The SFD aircraft is scheduled to fly in 2028.

What is Transonic Truss-Braced Wing (TTBW)?

Transonic Truss-Braced Wing (TTBW) concept is a new design for a commercial aircraft that aims to revolutionize the aviation industry through a much more fuel-efficient design of narrowbody airliners.
The TTBW configuration could save up to 30% in fuel consumption and emission reductions relative to today’s most efficient single-aisle aircraft
The newly designed wing is so long and thin that it requires a brace, but the aircraft can get a lift on this brace as well as the wing

About Boeing

Boeing is an American multinational corporation that designs, manufactures, and sells airplanes, rotorcraft, rockets, satellites, and missiles worldwide.
Todd Citron is Boeing’s Chief Technology Officer.

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