What would a never-built Royal Navy SLBM depot ship have been used for?
Short answerIt could have provided dispersed maintenance and support if British submarine bases were threatened, with possible use beyond its SSBN mission.
NotesConcern that Faslane and other British bases could be attacked drove the depot-ship proposal. The ship would carry Polaris missiles and support their reload as well as providing workshops and other submarine services. It might operate from Gibraltar, the Azores, Ascension, or the Falklands, depending on where submarines were needed. The concept addressed dispersal and continuity of the deterrent as well as routine maintenance, and its facilities could assist SSNs if supplies and components reached it.