Trouble with the RN/MoD is that the Politicians have for a number of years have been cutting the budget and assist stripping. The Naval Bases Ex Dockyards no longer have the expertise/resources to rebuild warships with updated equipment (possible civvy shipyards have also long gone down the swanny), so as the modern boats start to show their age in tech etc, there is no where to up grade them. To save money on personnel the older trained staff where encouraged to take redundancy, so now there is real shortages in certain trades ( old artificers I hear are being =offered £50,000 to re-enlist ). But then we do not build ships much, in fact it is virtually extinct in the UK, we do not make steel now or have any heavy industry , except for service centres, clothes shops and investment banks. Am 65 now and boy has this country changed.