"Exactly. Most of the USAF's B-52s are older than the Navy's oldest carrier (Enterprise) and will fly beyond 2020. There are first-line F-16s that were delivered in the late 70s/early 80s and will carry on beyond 2015, having outlasted most contemporary cruisers and destroyers. "
Please forgive a stupid question, but of those F16s, how much of the original F16 is left, and how much has been replaced, updated, changed or refitted over the years? Is it a case of triggers broom (6 heads, 4 shafts) or is this genuinely a 1960s vintage airframe?
I've seen some suggestions that the current HMS Victory is only about 15% original build now, and the rest of her is much more modern. Shes essentially an imitation of the ship that was at trafalgar.