J-11B fighter jet Chinese Air Force

Wikipedia: J-11B - An indigenised multirole fighter using a Flanker type airframe and advanced Chinese avionics, WS-10A engine, weaponry and technologies, reduced RCS, MAWS, IRST, and composites to lighten the airframe weight by 700 kg.[6][27][28] It has been said that the J-11B is over 90% indigenous.[29] It has been reported that more than 2 regiments of J-11B are currently in service. In May 2007, the existence of J-11B was confirmed by the Chinese government for the first time when state-run Chinese TV stations aired a report on the J-11B in PLAAF service. It has been claimed that the J-11B is planned to incorporate an AESA radar.[30] A new group of photographs which shows it with a grey nose, likely an active electronically scanned array radar from the Chengdu-based 607th Institute, has emerged and may be evidence that the aircraft has undergone or plans to undergo retrofit with AESA radar.[31]