Mithras said:
Yes, these things should out-number the free-traders 10:1.
I'm surprised we don't see more of them, I can't really see a goodreason for military deckplans (how do you get on board?!), but these huge cargo carriers are the key to plenty of adventures, from stealing cargos to surepticiously switching some important cargo, hijacking, contaminating, tracing a lost artefact ... the list ofadventure ideas is long. And deckplans are a must.
Actually, I disagree.
For exactly the same real world reasons that there are much fewer(by orders of magnitude) Super-Frieghters than there are small cargo vessels. The truth is that a superfrieghter will carry a great deal and reduce the costs of shipping a large number of items to once place(or a small number of common places) however try doing a milk man's route in one and watch your costs skyrocket(no pun intended).
The truth is that a limited number (even in so a vast setting as TheThird Imperium) of super frieghter routes move Mega-Tonnage from large ports to large ports. In these ports litteral armies need weeks(if not months) to off load them. Then those Mega-Cargo loads are broken out to lesser transports and carried to still further "break down points" and few are sold in that system(albet at a vastly reduced cost if you can get there).
The Mega-Loads have to be broken down to smaller craft capable of either delivering the items to markets by their "onesies and twosies" or taking them from place to place for speculation...
Could you imagine having to pay the bills of a superfrieghter to go up and down the African coast trying to sell handfuls of speculative cargo at each small port? You'd be bankrupt in weeks from the fuel alone
One of the best things Traveller has done since its release is keep things at a "Dinner table" level for most Merchant type players. THe basic question of where the cash for the fuel is going to come frmo has to be asked every time.
Show up with a J-4 MegaFrieghter and you have limited options...
(and J-4 is the smallest Jump for true interstellar hauling)
You need to fill 40% of that ship's displacement(Classic Trav stat) by:
1) Empty the C Class(Classic Trav stat) Starport of all their ship fuel if they have enough...
2) Spending weeks in one system sending shuttles out to skim a gas giant and then churning that all through your filtration system(with luck, they attached a reclaimation unit and you can sell the pollutants you filter out)
3) Limping from system to system on only jump 1 because you can not get enough fuel to jump further...
4) Becoming stranded because local resources simply can not produce anough fuel for you to get out...
And the cost if you mis-jumped??
Yikes!
Marc