We've got our own troubles with the loss of Ark Royal...they're on about renaming the second QE class but that's still another 6 or 7 years...
I never considered the Ark (22 000t) to be a proper carrier especially when compared to her predecessors (The audacious class of 46 000t). Even the previous ark shouldn't have made it past the mid '60s due to her awful material condition even then. To refit her cost the govt. Nearly ?40 million in the mid 60's where as her sister ship HMS Eagle would have cost a lot less (less than ?10 million) due to her already having most of the gear that the ark had to have fitted as well as her much better overall condition. A shame, the Eagle might well have made the 90's where the old ark didn't even make the 80s.
I still don't get why the navy scrapped 4 carriers that had only just come out of refit and another that had just finished refit and only needed recommissioning so that they could keep one carrier that was falling apart, had no planes and needed to be fitted with most of the then modern equipment that the others already had.
Btw,
here is a shot of the previous Ark along side the USS Nimitz. See how small she seems compared to the Nimitz? Now keep in mind that the Invincible class carrier that replaced that Ark is only slightly over half the size of her predecessor and you might just being to see my point.
Now if you want to talk about a *really* old carrier, go look up HMS Hermes/INS Viraat. Started in 1944, commissioned in '59 and it's still in service to this day with the Indian navy!