Aggregate economic output is not enough to describe a navy's industrial support. Shipbuilding and repair infrastructure should be represented by at least two separate constraints. One is the maximum vessel size a facility can accommodate; the other is the number of dry docks and where they are located. The distinction matters because a nation may possess substantial total capacity yet still be unable to repair a particular capital ship or sustain forces in the theater where damage occurs.
Notable Point · 3:13:35-3:14:11
Naval infrastructure needs both large and distributed dry docks
A useful infrastructure model would distinguish the largest hull a yard can accept from the number and geographic distribution of available dry docks.