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Instead of a single-fuselage cylinder, the D series melds two partial cylinders into a distinctive “double-bubble” shape. This adds to the lift and allows for longer, skinnier wings and a smaller tail, reducing drag. The engines sit at the top rear of the fuselage, where they draw in slower-moving air that passes over the plane, using less fuel for the same amount of thrust—a technique known as boundary layer ingestion. To mitigate the engine stress this creates, the plane would travel about 10 percent slower than a 737; the researchers anticipate making up this time through quicker loading and unloading via the plane’s second aisle.
Popular Mechanics shows the MIT proposed Boeing D Series plane for 70 percent less fuel usage.
A reinvention of this Boeing 737 workhorse, called the D series, could burn 70 percent less fuel, emit 75 percent less nitrogen oxide and dampen noise from takeoffs and landings. In short, it could transform air travel into a more environmentally benign practice.
Significant tweaks to the 737’s basic tube-and-wing design add up “like compound interest” on the craft, says MIT aeronautics and astronautics professor Edward Greitzer. The MIT-led team, which includes two commercial partners, developed the D series in response to a $2.1 million NASA research program challenging engineers to design aircraft for 2035, by which time air travel is expected to have doubled
MIT writeup on the proposed plane
They are also working on a Boeing 777 replacement
MIT is working with Aurora Aerospace.
Nasa had submissions from several companies for next generation (N+3) planes.
Boeing had a supersonic design for 2030-2035 and
Lockheed martin also had an environmentally friendly supersonic design for 2030-2035
Nasa N-3 Goals
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Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.