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Topic is for the open derivation of things for hang gliding from a study and discussion of the research project:
Preliminary Research Aerodynamic Design to Lower Drag, or Prandtl-D.
Preamble: http://nasasearch.nasa.gov/search?utf8=%E2%9C%93&affiliate=nasa&query=Prandtl-D
Tease video of a kited launch:
