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An inconspicuous but important feature of every wing was its profile, or airfoil section. National centers for aeronautical research in France, Germany, England, and the United States had compiled ...

Whether they’re opening for takeoff, spreading wide for a lazy soar or flapping to brake for landing, bird wings make flying ...

Lucas Wind Tunnel at Caltech. They used a fully equipped airfoil wing system as their representative UAV, outfitting it with pressure sensors and control surfaces that could make adjustments ...