Su-27 development history in picture

[Abbyy]

For military planes freaks.
Blue line - testing stage
Red line - mass production stage
Planes not on line - different experimental samples

http://www.skverik.ru/Pics/frakir/Su2.gif

[Levan]

there is no big difference between them. as between F-16A and F-16CJ Block 52

[bloddyaxe]

F-16A and F-16CJ Block 52

You think there is no big difference between a BVR capable and and non-BVR capable plane?

[Brzeczyszczykiewicz]

there is no big difference between them. as between F-16A and F-16CJ Block 52

Of course there's no big difference between long range BVR fighter (Su-27), two seat (tandem) multirole aircraft (SU-30MKI/K), and two seat (side-by-side) front line bomber (Su-34)...