One of the most advanced Soviet fighters, the Su-27 was developed with a mentality similar of that on the F-15 - technology, complexity and air superiority. It's an excellent fighter, and also an extremely confusing platform - a gzjhillion different variants have been developed, with and without canards, some of which have the same names and are different variants (such as the Su-35). They are all one big family, though - the Flanker Family, securing air superiority one big-ass airbrake at a time.
This is the last soviet fighter i'm gonna make, at least for a long while. All seven can be found in my portfolio.