Interesting design, to be sure. I'd just see it having problems maneuvering at speeds close to and past Mach 1, which the engines imply it's made for. The wings are to short front-to-back wise, meaning at near-mach speeds airflow would just pass over and complete forget about the ailerons. However, you'd still have an f'ing fast as hell fighter, and it'd be intimidating as heck. However, with a bit more weaponry (and I can definitely see the hardpoint space for it), this would make an AMAZING ground-attack or dogfighter, as it looks like at lower speeds, it would be able to emulate a very, very, very fast Biplane. SAMs wouldn't have anything on it if it slowed down.