NASA Armstrong Flight Research Center conducted its first formation flight with the Preliminary Research Aerodynamic Design to Lower Drag (Prandtl) aircrafts Prandtl-D2 and Prandtl-3C.

NASA Armstrong says goodbye to its Prandtl-D1 that is being shipped to the National Air and Space Museum, Smithsonian Institution and Prandl-D3 that will be going to the California Science Center.

NASA Armstrong's Prandtl-D1, is autographed by all the interns that have worked on the project. Prandtl-D1 is being shipped to the National Air and Space Museum, Smithsonian Institution to be featured in its Innovations Gallery.