Former McDonnell Douglas commercial jet that flew in China and on Delta Airlines will be converted into a prototype that will test a configuration capable of generating a 30% reduction in fuel consumption

Designated X-66A, the demonstrator will test the Transonic Truss-Braced Wing configuration, capable of offering 30% less fuel consumption than a 737. First flight should take place in 2028

Planemaker continues to focus on sales of the 737 MAX, which has more than 3,500 orders; development of a new narrowbody depends on the maturation of new technologies