Aurora Flight Sciences continues to flesh out the D8 fuel-efficient airliner design originally developed for NASA by Massachusetts Institute of Technology (MIT), optimizing the wing and fuselage for performance and operability in airline service. The “double-bubble” D8 is one of five configurations being considered by NASA for a large-scale X-plane demonstrator it hopes to fly in 2021. In addition to finalizing that proposal, the XD8, for submission to NASA in March, Aurora is ...

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