A Jetliner For A Fuel-Starved Future

An MIT team has turned a multi- million-dollar NASA contract into the most advanced rethink to date of the classic passenger jet. The design, nicknamed the Double Bubble, calls for an extra-wide fuselage and rear-mounted turbo­fan engines. The configuration would allow the craft to burn 70 percent less fuel than a Boeing 737 while producing significantly less noise and nitrogen oxide, a pollutant that causes acid rain. So when can we board?

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