A second version of the D series has also been put forward. This design doesn't save as much fuel (around 50 percent) but is a more viable near term alternative because it that could be built using current jet technology and materials.
The MIT led project is the result of a $2.1 million contract awarded by NASA in 2008 as part of an aeronautics research program aimed at putting greener planes in the sky by 2035. Boeing, GE Aviation and Northrop Grumman are also taking part in the program.
The team from the MIT's Department of Aeronautics and Astronautics was headed by principal investigator Ed Greitzer and Aurora Flight Sciences Corporation and Pratt & Whitney also contributed.
NASA is expected to announce a second phase of the program in coming months.
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