Harris Hawk
Developed by a technology teacher from Pennsylvania, Slater Harrison, this high-wing design is a little more difficult build than the Kittihawk but is more adjustable for flying in different conditions.
Build 1980 vintage balsa gliders . Pre-cut press out models in 11 designs mean no sharp tools necessary. Using PVA glue, assemble the parts which are held in place by pins until dry. I have surplus kits for sale. £10 for 5. They are also on Ebay. Note, I am not selling the single items there, someone else is.