Joined Wing Wind Tunnel Model
Langley researchers have been testing the Boeing Aerodynamic Efficiency Improvement Joined Wing Wind Tunnel Model in the Transonic Dynamics Tunnel.
They're working with the Air Force Research Laboratory to develop technologies for future high-altitude, long-endurance unmanned aircraft. The joined wing model "flew" in the tunnel so engineers could check out surfaces and sensors that help control the aircraft.
Credit: NASA Langley/Sean Smith