[Michal]

My project is relatively small but might be interesting. It is a modification of my Graupner model (bar is closed due to virus), which I flied with Dwight as an instructor. It looks nice but it is too fast for my flying skills. So I decided to slow it down by designing and building new wings. I increase the wing area from 460 sq.in to 660 sq.in, used higher lift Eppler 197 airfoil and added slotted flaps. The challenge was that I had to use the same mounting as in the model with a single screw. It is a cantilever wing without struts and the new wingspan is 1.9m. The load will be taken by two strong spruce/plywood/balsa beams. Per my calculation they should take UP TO 6G down load.