A tail sitter based off of the Coleocoptere, a french tailsitting aircraft that was meant to protect french airbases from Soviet bombers, by quickly taking off to intercept them. In reality, it never really worked. It was deemed dangerous, and by 1960, there wasnt anymore tail sitting research being done, as new fighters that could take off faster were introduced. This one is just as dangerous, as its incredibly hard to land, and really doesnt like to slow down.

EDIT: for anybody wondering why the Su-40M isn't here, I ended up feeling like crap on Thursday night, and Friday wasn't that much better, I'm better now, might release it either later today or tomorrow.