I wonder how small an easy to build ultralight can be, to haul a 230lbs Pilot and T/O and land almost everywere?
I belive that the ideal would be around a design of the Texas Parasol or the nonexistant BAP!
Another design concept would be the ZJ-Viera but it should be build in aluminium and wood and no costly composites.
Also a candidate for a brush-up would be the Birdman TL1A with the engine up in front and ailerons instead of spoilers.
Ideal would be too, that the whole bird is powered be a B/S Vanguard or similar engine of Kohler, Generac, Fuji, Lifan, Kawasaki, Honda and others!
Any kind of concept is welcome, as long as it powered by a 4stroke!