The Spinward Marches, ca. 1112:
Population ~382 billion among 439 systems, 153 of which are pop. value 4 or lower (10's of thousands). 169 Class A/B ports, 118 Class C, 152 Class D/E/X - unable to provide maintenance to spacecraft and therefore unlikely to maintain any sort of space-going force; 16 of those have pop values of 8 or better (hundreds of millions).
Starport class is a civilian rating. It tells of the facilities a visiting civilian starship can avail itself of. Any world with the requisite tech level (and tax base, of course) can build warships of its own (explicitly allowed by HG). If they can build they can maintain.
177 worlds of tech level 7 or lower - unable to maintain the 4g maneuver drive of a Type T patrol cruiser (though I'd guess an A/B/C port could manage some exceptions by importing parts).
Class A and B starports can maintain any visiting starship regardless of relative tech level. It seems logical that any world can import parts and technicians to maintain its warships, regardless of starport class.
Type T Patrol Cruiser: MCr 221.04 (Book-2), or MCr 44.2 up front, then MCR 11.052 annually for 40 years (Cr. 921 thousand per month, but most governments plan their budgets annually). Crew of 18, estimated payroll 33,000 monthly or 396 thousand annually. Factor in fuel and maintenance, basic budget's about MCr 12 annually.
Or more. TCS figures would be MCr22 annually. Not that I don't think that TCS figures are grossly simplified.
Every game master has their own vision of the Traveller universe - including such things as how much merchant traffic there is, a key and unknowable point in a debate about the economics of piracy in the hinterworlds, since only GURPS gives us any real detail, and that with some flaws.
Yes, but only one vision can be true in any single universe. Just because no official product tells us how big Enope's system navy is and how it's organized, maintained and paid for doesn't mean that the answer isn't fixed for any single universe. If you want it to be no defenses at all in YTU, that's your business, and if I want it to be surrounded by hundreds of 50,000T monitors[*], that's my business. What it is in the OTU is Marc Miller's business[**] and when one of his minions writes up Enope one day, we'll get his answer.
But what some people seem to miss is that until that day, it's FUN to speculate on the answer. I don't engage in these discussions to force anyone to conform to my views. I do it to explore my own views[***]. If I have any motives in the direction of "forcing" anything on anybody, it would be to influence the hypothetical future writer of the Enope writeup to believe in my vision (because obviously a writeup that conforms to my vision would be a lot more useful to me than one that contradicted it), but considering how likely that is to come to pass, I think I'll stick to having entertaining discussions as my motive.
And people who feel that I'm beating a dead horse are welcome to refuse to watch and they're welcome to grab a mallet and see if it might turn out to be a pinata. But they're not welcome to tell me not to beat the horse; if it's dead there's no harm, and if it's a pinata it might even burst one day.
[*] I don't. I want it to have defenses that it can plausibly support given the logistical problems involved; I just haven't worked out what that might be.
[**] But even Marc Miller can't make it 'none' on even days and 'multiple monitors' on odd days. Well, he can, but I for one wouldn't believe him.
[***] And sometimes, less creditably, to challenge people who state their opinions as fact. That tend to get right up my nose and provoke me to reply. I try to curb the urge and I'm getting more mellow (or care less) as time go by, but I still react more often than I should. But hey, if I can't sound off when I'm among friends, where can I sound off?
On the one hand, the Marches are very much frontier - large numbers of lightly populated worlds that would have real difficulty coming up with a 44 million credit down payment...
The crucial number is a tax base of around 1 billion credits, which ranges from a population of 50,000 (TL14) to 500,000 (TL5)[*], though a world with a borderline population size might well have a higher than average proportion of its taxes going to the military. (Actually, to get the nice round figures above I assunmed a military tax of 3.7% instead of the canon average of 3%.)
[*] More than that, actually, since there will be logistical problems that adds to the maintenance cost.
I'd say that as a rule of thumb, any high-tech world with a population of one million and any not-too-low tech (not lower than TL5) world with a population of 10 million would have enough system defenses to deter pirates.
...large numbers of worlds without the infrastructure to maintain a patrol cruiser (or any other spacecraft) even if they could afford one.
See above.
On the other hand, one could establish a patrol of 400 tonners around every Imperial planet - rotating back to some rear base for rest and maintenance periodically with a relief rotating in - for the price of a couple of Imperial heavy cruisers. Same applies for Sword Worlds and Zhodani space - though life in the non-aligned region might be a bit harsh.
Evidently the Imperium doesn't do that for whatever reason. Lack of interest, perhaps. However, I think there are sufficient forces left over that do have the interest to take up the slack.
Mora's system navy apparently donated a 50,000T monitor to Rorise in 1104 (The text says that Rorise 'acquired' the monitor, but how much could 50 people afford to pay?. Rorise would need help just operating the thing (It would take 800% of their population to
crew it) let alone maintain it). OK, that story is exceedingly hinky and in dire need of a retcon[*], but it shows one additional possibility: Help, financial or practical, from neighboring worlds or from the Imperium.
[*] IMTU the 50 citizens are all members of an exceedingly powerful merchant family that owns Rorise and use it as a retreat; the actual population is in the tens of thousands but are all counted as citizens of their home planet staying only temporarily. But there are various problems with using that explanation in the OTU.
As I said in another post, governments have tended to invest in protecting their shipping. The problem they've usually had, here on Earth, is that there were more places to patrol than they had assests to patrol them, which I submit is not the case with the OTU. But there's another group of people who are definitely interested, and that is the shipping companies. The British East Imdia Company maintained a private navy (The Bombay Marine). So, it would seem, do companies in the OTU. Al Morai, a relatively small company, maintains four "route protectors", and I see no reason to suppose that a company like Tukera would not have a lot more than that of their own. These ships won't be stationed in backwater systems, but they will be stationed in systems that are part of a trade route and lack defenses of their own.
I think it really comes down to what you want in YOUR world.
What goes into anyone's TU
always comes down to what he wants in his TU. Which is why I very seldom discuss what goes on in personal TUs, my own included.
I'm not even discussing whether there are pirates in the OTU. Not only do I think that it would be a fool's errand to try to prove that they couldn't possibly exist (I think they can; I just think they will be a lot rarer than implied by canon), but I
want pirates in the OTU (and in my own). I'm only, ever, discussing if they actually make sense (as portrayed in the canon material), given the peculiarities of the jump drive.
Hans