Get ready for the next generation of passenger airplanes.
NASA has taken the wraps off three concept designs for quiet, energy efficient aircraft that could potentially be ready to fly as soon as 2025. The designs come from Lockheed Martin, Northrop Grumman and The Boeing Company. In the final months of 2010, each of these companies won a contract from NASA to research and test their concepts during 2011.
According to NASA,