Chinese sources claim the J-11 is superior to both the SU-30MKK and the SU-30MKI, i find it hard to beleive. Aparently the J-11 uses lots of composite material the reduce both weight and RCS. Furthermore, the WS-10A engine is supposedly "superior" to the AL-31, but if it's so superior why does China continue to purchase jet engines from Russia? Moreover, the Chinese claim that even their AA weapons are superior to anything Russia has. Finally the J-11 is reputad to have a superior radar, is this true? So how does the J-11 stack up against the, for instance, the SU-30mki, SU-35, or even the SU-30MKK in terms of radar, weapons, ect. Are the Chinese full of it or is the J-11 really that good? Personally i think the J-11 is overrated.