Neoverena, lec zajimava informace o novych verzichch Su-27 z jednoho mailing listu:
Combat Aircraft had an interesting article on the recent Su-35S development (aka Su-27SM-2, aka Su-35BM), which Russia ordered as new-build aircraft last year (2009), for delivery by 2015. Unlike the early 1990s era Su-35 (aka Su-27M), the new Su-35S does not have canards, trusting to thrust-vectoring for edge-of-the-envelope maneuvering. The article spends a bit of time on the Flanker evolution and had one very interesting item about the origins of canards on Flankers. According to this, the design decision to add canards was driven by a need to _provide additional lift_ in the forward portion of the airframe to compensate for a much heavier multi-mode radar. Any agility benefits were a secondary factor. It also sounds like the canards had a disproportionately large radar signature impact and limited pilot visibility.
V tehle souvislosti se mi vybavuje bonmot jednoho konstruktera, kery rekl ze nejlepsi umisteni canardu je na souperove letadle 8)