I wonder why the Chinese make almost exact copies of American stuff?
Two reasons I can think of - maybe both are partially true, and both valid and sensible reasons - give a worldwide admiration for anything American.
1. By doing an exact clone or a close copy, a lot of the stealth/aerodynamic issues that need solving have already been solved by the US - so only some tweaking will be needed.
2. America admirers and critics of indigenous tech (in India and I presume in China also) will always take pains to point out why the American stuff looks better. By making a close copy the wind is taken out of the sails of these characters. who have to shut up.
Not a bad tactic to kill two birds with one copied stone - but I doubt if India will do that..