Straybow
SOC-14 1K
Not so. If I want a gasoline motor with a certain amount of horsepower, I can find it. Depending on the HP, I almost certainly have a choice between multiple form factors: number of cylinders; in-line vs flat opposed vs V; high torque low RPM vs lower torque higher RPM. I could even look at diesel options just in case.True, but I would also stipulate that it's a bit more nuanced than that.
This is where the LBB2 vs LBB5 debate comes in handy.
LBB2 "ship stuff" is basically "commercial off the shelf" technology, meaning this kind of "import and it's all good" like you're talking about will DEFINITELY APPLY to LBB2 components.
LBB5 "ship stuff" is ... custom made ... for the the specific ship class. That means that you're basically putting a floor on the minimum tech level of your support logistics. Wherever you go to for maintenance and overhauls, they have to be able to manufacture and supply (locally) the tech level of the ship they're going to be working on ... because it's a CUSTOM BUILD. This creates a kind of "one way ratchet" in terms of supportable tech. Go "too high tech" and you're basically "tethered" to a support infrastructure of that tech level or higher, every single year.
In the same way, there could be as many starship drive and power plant manufacturers as there are industrialized planets, or more than one on a planet in some cases. There would be an aftermarket for parts, as well as designs for on-demand manufacturing. It's thirty centuries in the future, man.