What are the main differences between PLAAF and PLANAF versions of J-10?
Probably larger wings (for low speed stability when landing), marine grade steel (to avoid corrosion in sea environment), reinforced landing gears for catching the aircraft with arresting gear.
I don't think this is a carrier version of J-10, but only navalized in terms of being used for sea control, but from land bases. Maybe this version has somewhat different electronic equipment or it can carry anti-ship missiles?
Hmm so they are retiring J-10 now. Why don't they retire J-6 or J-7?