An 18-month NASA research effort to visualize the passenger airplanes of the future produced some ideas that at first glance appear to be out of an old 1950s aircraft magazine. Instead of exotic new space-age designs borrowed from science fiction, far more familiar shapes dominate advanced concept studies that four industry teams completed for NASA's Fundamental Aeronautics Program in April. Looking more closely, there are some subtle differences, says NASA, with new airframe and ...

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