An unmanned aircraft dropped from a balloon that can learn to fly before it hits the ground; morphing airframes made from the structural equivalent of digital pixels; aircraft structures that store energy... these were just some of the ideas on show at Glenn Research Center on Sept. 7-8, where an enthusiastic group of NASA engineers-young and diverse, but with a scattering of grayhairs-gathered to showcase their progress under the agency's Convergent Aeronautics Solutions (CAS) project.
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