If you have additional information (ex: specificity of piloting, various characteristics...) on the hang glider Colver Skysail by Frank Colver, you can supplement his card by adding your comment or write to us :
Considerable information is in LIFT issues online free.
12/11/2012
And it is shown in Low & Slow #12 color centerfold.
And also in the Popular Science Magazine of May, 1975. Builder: Frank Colver of California, USA.
I do not find the wing yet in your good collection.
Bill Allen and Clara Allen photos, Article written by Paul Wahl.
1974 May article. Has good photos of Colver Sailwing.
I will notify Frank Colver of this page.
13/11/2012
My last name is COLVER not CLOVER. It's the COlver Skysail.