Ideally, an aircraft would be made of something reasonably strong, light, and weather resistant. Cardboard, is none of those things. But that did not stop [PeterSripol] from building an ultralight ...
History is full of engineers making (or attempting to make) things out of the wrong stuff, from massive wooden aircraft to ...
This is an amazing flying wing project, using classic balsa wood construction and covering. You can learn more in the ...