Golly. Got a bit heated around here!
A point everyone seems to be missing is that a ship has a cost to operate it. And it has to be manned to the appropriate complement. An additional cost over a pared down complement appropriate for a refit.
Unlike a commercial ship these costs are not offset by revenue. So there's not the same imperative to keep a vessel at sea

Operate 24 hours a day for weeks or even months. With no nipping back for a beer. How many people do you need then?
I'm late to this thread but we ran 24/7 Ops for up to 10 days with skipper, mate, engineer, stew and the charterers usually providing 2 or 3 occasionally 4 surveyors. Side scan, multi beam, sonar, boomers and occasionally ROV. Not trying to put down the RN - just saying it can be done with less people, all having proper rest periods and meals.
W.


This thread might be summed up as:
Merchant shipping (including oil patch) people:
We don’t understand why you do things this way...
RN people:
You don’t understand. We do things this way
MN people:
We don’t understand. Why do you do things this way?
RN people:
You don’t understand. We do things this way...
However I assume you didn't need sufficient people to man weaponry, provide boarding parties, damage control and redundancy in case of death or dismemberment, etc, etc.
That's without mentioning the really important jobs such as laying on a jolly good cocktail parity for local dignitaries.
I thought this thread was about Gilbert and Sullivan
Turns out it was more like the usual suspects going on about privatization, cutting red tape and reducing taxes just before they shut it all down and ship everything overseas.
No doubt when the plotting room in western approaches command is moved to a call center in India it will be much more efficient![]()
To paraphrase.
RN People: It's not about money, it's about lives.
MN People: But how do you deliver a profit
RN People: We don't, we save lives.
MN People: ??? But profit.
RN People: *facepalms*.