Loyal Chancellor and Loyal Moderator were 2 Loyal Class Fleet Tenders operated by the RNXS (Royal Naval Auxiliary Service - manned mainly by volunteers) who's task was to protect ports and harbours and help with the dispersal of shipping in case of nuclear attack.
The RNXS was disbanded in 1994 but I believe these vessels are still going in private hands see:
http://www.yourboatphotos.com/picture/number442.asp
http://www.savetheroyalnavy.org/
Report