you need a fleet of atleast 8 to 11 ships mix of destroyers frigates missile boat, corvette an exilary ship plus submarines to guard an aircraft carrier. PN cannot even induct the required number of ships and subs in its fleet, how do u think they will be able to manage an aircraft carrier.. plus aircraft carrier is more of a forwarding base, Pak arm forces doctorine is limited offence /defence. in that you dont need a forwarding base. PN should fulfill its fleet requirement and concentrate on expanding its marines and seals providing them with latest equipments, should invest in producing innovative tech and making ships an subs in pakistan rather then buying, we have the tot of agosta 90, f22p, jalalat class missile but we are not making any of them i dont know why.... ideally would be 2 agosta 90 and 2 f22p. 4 missile boats by end of 2012 (made in pakistan) but its not going to happen becasue we are lazy and the top brass and govt miinisters will miss out on their cut of defence deals...