BUILD YOUR OWN ULTRALIGHT AIRPLANE PFEIFER AND TEXAS PARASOL PLANS ON CD
PLUS EXTRAS!
The plans are in adobe acrobat files (pdf). 

Extras Include...
Software
     Airfoils Calculator
           Airplane Screensavers
           Adobe Acrobat Reader
           Metric Imperial  Conversion Calculator
     eDrawings English
     How To Build A Professional_Wind_Tunnel
     Poster Print for large blueprints printer utility
     Profiler
     Raster toVector
     Wing Profiler
     Prop Design Software

IF YOU PREFER USB INSTEAD OF CD LET ME KNOW AT TIME OF PURCHASE. THANKS FOR LOOKING.