Still a old aircraft that either needs a major overall or replacing as follows
1) complete new design of airframe to put the exsiting kit inside, or buy off the shelf, Boeing/Airbus
2) Get Bae to build completely new airframes i.e. start the production line up again, and carry on with the Nimrod, because if it is such a crap aircraft as some people have said then why has it lasted so long?
I peronally believe that it is more of a case of lack of money to service them correctly and upgrade them when needed
Just a thought
Duncan