No more guesses? Ok here's some hint. It where known by pilots easy to handling and therefore an populare plane for them to fly exept for common engine breakdowns, but they where never build over 750 and they they where never used before 1980, none of them where equipt whit missiles exept for several of them were refitted as testbeds for new missiles. It also had no tailwheel. One confusing thing here about this name of the plane is that there also another type of plane that came 4 year earlier, that straight winged fighter had the same name as this one but it only only became no more than a prototype. it could reach between 2500-3000 km whit external tank