In terms of capability, the Argentinian Naval Aviation Neptune was still capable of assisting their aircraft in destroying our shipping. On top of that it** was costing us a lot of money in the mid 80's. Night after night it would trundle inbound before descending and disappearing off RADAR at the point we scrambled. Did we ever manage to get to it?
** Well as I remember it was a Neptune, but must stuff I've read since said they were retired by 86 so I can't confirm.
I recall doing the practice loading of Deep Sea Sunshine onto them (Dutch operated) down at St Mawgan. Close up, they looked astonishingly old and the thought of them lugging that sort of stuff around made me nervous.