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Dragonfly wind tunnel testing at NASA Langley Engineers set up a full-scale, semi-span wind tunnel model of NASA's Dragonfly rotorcraft at the Transonic Dynamics Tunnel facility at NASA's Langley Research Center in Virginia. The model features flight-like rotors, allowing the team to conduct extensive aeromechanics and aerodynamics testing in a heavy gas atmosphere that simulates the conditions Dragonfly will encounter on Saturn's moon Titan. NASA/Johns Hopkins APL