Is this thread on which one is better? The author just pointed out the similarities in both aircraft. So no point of using useless lines like it will come before AMCA, yes it will come before AMCA because the KF-X project started in 1998, AMCA started in 2010. Yet we will bring a prototype in a lesser time than what KAI did, considering KF-X programme’s lead consultant is lockheed martin and majority of its components are straightaway imports and it uses a simple design and is a 4.5 gen aircraft, not saying its bad but AMCA will focus more on Indigenisation and usage of existing tech developed, from E/W Suite, to radar, to engines, to radome, to landing gear, to weapons, IRST, DCMAWS, Helmet Mounted Cueing System, Aircraft radar absorbant materials, etc all will be Indian with minimum imported stuff like ejection seat from Martin baker. Yes LCA Tejas had an Israeli radar, American engine, British radome, Israeli E/W suite because our own tech wasn’t matured till then, but DRDO is optimistic that it will be using majority of Indian equipment, parts and components.