NASA's Armstrong Flight Research Center engineers in Edwards, California, are working on an increasingly complex aircraft called the Preliminary Research Aerodynamic Design to Lower Drag, or Prandtl-D.
NASA has provided a report and files that contain geometry in an effort to allow others to build and analyze this aircraft design!
Tom Sanders demonstrates how to modify a stock balsa glider, including adding a launch lug and setting the wing's dihedral. We are excited to be able to share this new project video with you. Additional instructional information is coming soon!
Originally featured in the March 2015 issue of Model Aviation magazine, Laddie Mikulasko details how to build the Curtiss CW-24B. This is a scale of one of the U.S. Army's one-of-a-kind fighter aircraft.