Whether it's actual bots bustling about and unnoticed since they are just part of daily life in the future or it's higher end automated systems, I'd think that the crew requirements of today might serve as a guideline but future requirements would be lower.
Agreed, but Traveller uses Merchant standards and doesn't rethink it for military ships.
24/7
First, I see no reason this is 3 8hr shifts. When I was in the Navy our standard rotation was 12 on 12 off. 2 shifts (some jobs, like the barber shop or personnel department, only had one). 7 days a week. On top of that, 1 out of every 3 or 4 days (varied based on needs) was a duty day where you might be cleaning berthing, loading supplies, standing watch and so on. Sometimes duty was to cover an unskilled job that didn't have the manpower for the second shift. There were times I had a normal work day, was assigned a job for duty during the 12 hours I was "off" and then went back to my normal job for 12 hours. 36 hours without sleep. Typically a duty watch was not 12 hours. The 12 hour watch was a easy phone watch were you just took messages but if something warranted it, you went to wake up the appropriate person. Maybe it's no-doze, red bull, futuristic drugs, meditation techniques, devices that manipulate brainwaves and increase the productiveness of rest cycles, or something else, but I'd think the future capability of people to work longer shifts requiring high alertness would be possible.
On average, I'd say that for so called 24/7 coverage there could be less than 2 people per position.
I disagree. Yeah, the Snipes were usually either 6 & 6 or 12 & 12, but back then, a lot of ships used the 4 hour rotation with the dog watches for most non-engineering watches. Nowadays, 6 & 18 or 6 & 12 are common, or 5 & 15. Although when I was on the Blue Ridge, I ran Navigation on 12 & 12. That was our workday, and we ran the watch out of the half of the division that was on. That avoided crowding the chart room, but also gave lots of relief for the watch.
For starters, you wouldn't even port if you thought there was a security issue. In many locals we stayed at sea and took the liberty boats in. Some foreign ports are friendly and you are at a secured location with some security is provided by local forces. We didn't have a squad of marines at each and every access point of the ship. Typically you limited access to the area the ship was in and only needed security at a few checkpoints. The majority of the armed response security forces were unseen and just needed to be ready and available to respond if the folk on watch sounded the alarm.
Mostly, I agree, but nowadays, we assume there are security issues everywhere, to an excessively paranoid level. At least we still go places, even with that mentality.
It's been 20+ years so I can't remember the code but when a ship wide alert requiring a marine response was announced it didn't matter if you were the lowest crewman or a high ranking officer, you hugged the bulkhead because those passageways were narrow and the jar heads took their job seriously (and wouldn't mind the opportunity to mess up a sailor without reprimand) and would make you one with the bulkhead on their own if you were in their way.
As I recall,
Tweet, tweet, tweet "Security Alert, security Alert! Station the Security Alert team and Backup Alert Force (SAT & BAF). All Hands not involved, stand fast! Reason for security alert is _______" Repeat. And every 5 minutes "The ship is at securitry alert. all hands not involved, stand fast".
The covert security alert was usually something like "Seaman Schmuccatelli, Wardroom", where Schmucatelli would be the last name of the commanding officer, and the Wardroom is the example location he was told to go to. We pass the word for enlisted like that; officers are passed "Ensign Timmy, your presence is requested in the Wardroom". The exception is the CO, XO, and Nav. If it's a serious enough emergency, you passed their title and the location. That told them it wasn't just the OOD wanting to make a report, and drop whatever they were doing. Use that only for that officer's career rocks & shoals!
My military experiance was in the Air Force not the navy. When we had alerts and compressed our three shifts into two we had extra bodies that we could give over to pulling guard someplace. <snip>
Seems reasonable.
In the Essex class aircraft carriers <snip>not much different from the TL=5 Essex class or even the TL 6 Enterprise or TL 7 Nimitz.
When I was on the Shasta, we had a crew of about 430. When she became a Military Sealift Command ship (civilian mariners), they reworked her engine spaces, and ran the whole ship on about 80 crew, including the military detachment of about 20 (radar, comms, admin types).
The Jump <snip>whatever else they can think of. Too much idle time in a small steel box = bad.
Today's navy runs the maintenance being performed by the watchstanders in the space, while someone in Main Control watches screens, although they are trying to make the newer ships and Smart ships run more like civilians, with only the Central control Station (replaces damage control central and Main control), and a couple of rovers.
Marines usually don't have guns, and lots of idle time, so they eat, sleep, work out, and stand in lines. We used to form a line, wait till marines got in, then look at our watches and 'huff off' in a rush. Come back later, and laugh at the marines still in line, not knowing what it was for. Wasteful!
So the ship can run on 8 to 12 hours a day doing official jobs or secondary jobs from all personnel, with extra inventive tasking for an additional 4 hours to keep the crew busy.
Does that sound about right to all the folks that served in various wet navies?
Navigation and engineering, communications, and CIC all need to be manned 24/7 underway. Deck (anchor, accomodation ladders, boats, etc) was a normal work day, except when evolutions required. Underway replenishment, boat ops, crane ops, well deck ops, etc could make them work lots of overtime. Admin had a normal work day. Combat Systems, except for the Combat Systems Office of the Watch (CSOW), had a normal work day. Supply was usually a normal work day, except the galley. They had to be up early to cook and serve the food, and were run long-day/short-day. short-day came on around 0430ish, and got off after lunch-time clean up was done. Long-day came on as soon as breakfast secured, and got off after night time clean up. Then there was the guy who did mid-rats (midnight rations, or mid-scraps). And the guy who did breakouts (setting out the next meal's supplies), the Jack o' the Dust, or JOD. That guy worked a couple hours between meals and otherwise did nothing unless he had collateral duties - which we all have.
Divisional collaterals included Work center Supervisor (track and schedule maintenance), Damage control Petty Officer (WCS for Damage control - only one ship I was on was smart enough to merge those two), Training PO, Supply PO (who puts together the order to send to Supply dept, so all they have to do is approve it), and others based on your work center, such as Chart PO (voyage planning, chart correction, plotting track, ordering charts, etc), Deck Log PO (custodian of the log, copies, gets signatures, corrects, and sends off to Historical Center), Weather Log PO, POIC for a given space (all maintenance, cleaning, and paperwork on that space), etc.
There's a whole lot of stuff swept between the cracks that'll keep folks busy besides their official job description...