SAAB J21.
The unorthodox SAAB J21 fighter was a domestic attempt to provide the Swedish Air Force with a true high performance fighter. It's design was conducted during war years, when there was no practical possibility for Sweden to acquire modern aircraft from abroad. The J21 emerged as a very advanced airframe with streamlined shape, twin tail booms, laminar wing profile and ejection seat for the pilot (which actually worked well in service, unlike some of the early ejection seat...
