DougRobertson The Zenair Zipper was Zenith Aircraft's Ultralight aircraft designed and sold over 20 years ago. The model is no longer in production by them. Google browser should have more past information.
DougRobertson Steve, If there is no Zenair Zipper owner's group, or try contacting Zenith directly for sailplan specs or, short of a wanted ad you place in Trade-a-Plane, I don't know.
Bluedharma Steve, There are a few listings of people who have sold them in the past. http://forums.matronics.com/viewtopic.php?p=72241 Perhaps the guy who was selling his can tell you who he sold it to, and if there are more "parts" floating around? Best Regards, Bluedharma