NASA’s Preliminary Research Aerodynamic Design to Lower Drag (PRANDTL-D) No. 3 aircraft efficaciously hovered its first flight this morning. This aeronautical test is the opening of numerous that are intended at cultivating flight effectiveness. Engineers guesstimate future aircraft could see more than a 30 percent upsurge in fuel economy by consuming the new methods of wing strategy which eradicates the weight & drag of the modern aircraft tail and its flight controller exteriors.
NASA’s Armstrong Flight Research Center engineers situated in Edwards, California, are functioning on a progressively multifaceted aircraft called the Preliminary Research Aerodynamic Design to Lower Drag, or Prandtl-D.
Flight data from the first 2 Prandtl-D vehicles authenticated the grouping of rotation and a boost delivery crossways the aircraft’s wing – bell designed rather than the customary cryptic shape – leads to more well-organized flight.
Peter Garcia Say’s; There is a twist in the wing such that one gets proverse yaw rather than adverse yaw such as the the flying wing design you are thinking of. This is a revolutionary concept using what is called a bell lift distribution rather than what in classical aerodynamics is called the best lift distribution which is an elliptical lift distribution. Without a tail an elliptical lift wing is unstable and the vehicle will go out of control in turns. Note how rock stable this is in turns. A glider like this with an elliptical lift wing would tumble out of control in a turn. The old Northrup Flying Wing had this problem and would crash. Edwards AFB is named after one of the pilots of that vehicle who died in such a crash. The B2 is able to fly because of the level of automation in all the aero control which was not available back when the original Northrup Flying Wing was tried. Thanks for this Ross Hathaway.