RE: Grumman Widgeon
I thought that you might like to see my first cut at rigging the Balsa USA 1/3 scale Ercoupe with floats. I purchased the Balsa USA 1/3 scale EDO float kit, but I have not had the time to build them yet, so I used some Sea Commander 1/3 scale fiberglass EDO floats, with their strut and spreader bar hardware.
The design was based on the one full scale float-equipped Ercoupe prototype. The wings are a bit positive relative to the float top decks, about 1/4 inch in the 20 inch chord of the flat-bottom airfoil. It is very rigid, which I guess one would expect from three triangular trusses. With the small Ercoupe air rudders, I may add a vertical sub-fin under the tail for the initial test flights.
Don't forget the Riverside RC Club Float Fly at Lake Perris on May 21-22.