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Old April 9th, 2018, 03:18 PM
Garnfellow Garnfellow is offline
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Default Shipyard Capacity

In playing around with GURPS Traveller: Spaceports, I was looking at the shipyard rules on page 80: "Total shipyard capacity in displacement tons usually is equal to weekly trade tonnage divided by 12 at Class IV [B] ports or 8 at Class V [A] ports, then rounded up to the next standard hull size where applicable. . . . The shipyard can produce one vessel at its capacity size per year, or any combination of smaller vessels totaling that tonnage in a year’s production."

The tonnage is related to port capacity (rated 0-9), which is unrelated to port class -- that is, what amenities are available. So you could have a very large volume of trade passing through a Class C starport on a major trade route, or a very small volume passing through a Class A starport that is very far off the beaten path.

In looking at Dark Nebula, Magyar, and Solomani Rim economic data on the wiki I was struck by the relatively small port sizes in those sectors. There are no size 8 or 9 ports and relatively few class 7 ports. Even Kusyu, center of the Aslan Hierate, has only a size 6 port.

What does this mean? Well, if I understand the GURPS rules here, shipbuilding capabilities seem pretty anemic.

A size 6 port, for example, has an annual trade volume of 1-10 million dtons, or 20,000 to 200,000 dtons per week. Divide this by 8 and you get a shipyard capacity of 2,500 to 25,000 dtons. A naval base doubles this capacity.

So Kusyu, revered homeworld of the Aslan, can churn out maybe 50,000 dtons of starship a year? Basically, one cruiser?

Or Terra -- a size 7 port -- limited to 500,000 dtons? Two, maybe three battleships a year?

Or have I got this wrong? I prefer smaller fleet sizes in MTU, but these numbers seem as bad as the TCS numbers, just at the other end of the spectrum.
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