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NASA's Armstrong Flight Research Center engineers located in Edwards, California, are working on an increasingly complex aircraft called the Preliminary Research Aerodynamic Design to Lower Drag, or Prandtl-D. This illustration shows what a Prandtl-M might look like flying above the surface of Mars. This illustration shows what a Prandtl-M might look like flying above the surface of Mars. Credits: NASA Illustration / Dennis Calaba Resembling a boomerang, the aircraft features a new method for determining the shape of the wing with a twist that could lead to an 11-percent reduction in fuel consumption. The concept may also lead to significantly enhanced controllability that could eliminate the need for a vertical tail and potentially to new aircraft designs.
originally posted by: Shadowhawk
a reply to: Sammamishman
You mean yesterday's flight, but yeah. That was the first flight of Prandtl-D (vehicle 3). I was there; in fact I am the last person you see in the video.