Assuming that crew sizes are a fair measure of operating costs - mostly because we haven't got one better than that, and the hints from RFC at least do not contradict that assumption - the fortresses are mighty cheap compared to SD's that way. The latest fortresses have crews comparable to a Nike BC(L), which would be much less than one SD(P).cthia wrote:I've been scratching my head on this one and apologize for being unfashionably late. (The exigencies of the holidays.)
The historical use of forts is in the protection of tactical and strategic objectives that themselves are immobile. Forts are strongholds. Strongholds are NOT meant to move because you don't want opportunity to be caught with your pants down -- and pulled out of position. (npi)
I haven't read the entire thread, but I didn't see mention of a comparative cost analysis of the absolute operating costs of the forts vs the equal tonnage in SDs. As humans, we often make that mistake. We want a brand new Ferrari, but we fail to take into account the yearly operating costs.
It's vastly larger, of course. Assuming hypergenerator parts and node wear represent a fair portion of operating costs, there's that much reason to suppose fortresses are cheaper that way. Supplying them represents a trivial investment in freighter capacity, since they're kept near industrial nodes.
Hypercapable warships do have going for them that they're far easier to keep or to get where you need than fortresses. Moving the fortress in-system takes a bit of time with the low accel wedge; moving it to another takes taking it apart, stowing it, moving it, and putting it back together again. (They're building fortresses to be less awkward that way, but it's never going to be fast.)
It would, but we're not going to get more than hints from RFC that way.Perhaps a better analogy is that private owners of business jets cannot fail to overlook the significant yearly operating costs of a Boeing Business Jet in addition to the already significant initial purchase price of $100M. The yearly operating cost is somewhere around $2M.
Over decades, would it be significantly cheaper to operate forts than the comparable tonnage in SDs?
Costs would include: top of head.
1. Manpower. Total crews of an SD are replaced often.
2. Man hours. (Not necessarily the same as above. In fact, certainly different.)
3. Maintenance.
=> A. Would there be less total major systems on forts to replace because of wear vs. comparable SD tonnage?
4. Foodstuffs
5. Reaction Mass
6. Medical
7. Repairs
8. Upgrades. Cost to upgarade the forts vs comparable SD tonnage?
9. Miscellaneous
It would be nice to see the tally sheet of the Exchequer's projected operating cost analysis of the forts vs SDs over a half century or more.
My 15 % tip in addition to my two cents. Whatever the forts are there to protect doesn't move. It's the history of forts to protect tactical and strategic objectives that don't move. Therefore, if your area of responsibility don't move, then why buy a mobile home -- if it ain't never going to move -- more importantly, if you don't want it to move. Or, in the forts' case, move significantly? Save on the wheels and rims. lol
The strategic and tactical objectives of forts may represent an incredible investment in time, cost and limited technical resources to protect a time-sensitive-replaceable objective attached to irreplaceable lives able to perform very specialized tasks.Forts have an implied order to STAY PUT! Hence... FORTIFIED positions... FORTS.
Commanding Officers really don't want to have to divert ships to protect very important strategic and tactical objectives that were mistakenly uncovered
Well, the wedge serves a role in defense - both being an impenetrable shield and allowing wiggling versus attack - along with allowing the fortress to relocate. It doesn't represent a terrible burden in fortress design that is assumed purely to be able to maneuver about a star system - that latter capability is essentially a convenience that is a by-product of getting the wedge for tactical purposes consistent with remaining on station. That said, that fortresses can relocate can be considered when you contemplate how to operate them, and if you had weeks of warning that gave you a strong, specific need to have fortresses in another part of the Manticore-A/B/Junction system, it may be worth exercising that capability.
That these are labelled 'fortresses' does indicate that mobility isn't really a prized part of their function. If it were, they'd be SD's instead - smaller, much faster, and hyper-capable too. They're instead built for roles where those are not important: places where you darn well are sure you want an armed presences to stay.