The J-15 and Su-33 share obvious external features. Similar packaging follows from comparable roles and operation from the same style of STOBAR carrier; Liaoning is Kuznetsov's sister ship. External resemblance does not establish that their internal systems are the same. The comparison cautions against treating the J-15 as a literal Su-33 copy.
Notable Point · 30:01-31:08
External similarity and internal differences in the J-15
The J-15 and Su-33 share external features because they serve similar roles from sister STOBAR carriers, while their internal systems may differ substantially.