Do not place capitals on bonus tiles. They only boost existing points in place and do not benefit from the tiles themselves. There have been numerous discussions on this if you want to search for it.

Is it a class 10 world? Unless it's a small map, I wouldn' t put a manufacturing capital there at all.

Is it a class 10 world? Unless it's a small map, I wouldn' t put a manufacturing capital there at all.

Even with it being only a Class 10 world, the quality of the tiles would more than justify putting a manufacturing capital there. Even with only four factories (each placed on the bonus tiles), you would have the following...

1 factory + 700% increase = 8 factories...
3 factories + 100% increase each = 6 factories...

That would give you a total manufacturing capacity equivalent to 14 factories. I would say that's worth the placement of a manufacturing capital.

That would give you a total manufacturing capacity equivalent to 14 factories. I would say that's worth the placement of a manufacturing capital.

Except that I don't think it works that way. From what I've seen, the capitals add 100% rather than actually doubling the output.

So, 1 factory with a 700% bonus may be equal to 8 factories, but add the manufacturing capital and all you really did was change the 700% bonus to an 800% bonus, or equal to 9 factories, rather than 16.

So, if I'm right, then the placement of capitals should be chosen purely based on the base capacity, without any modifiers for tile, colony, or global bonuses.

The other line of thought is a MC on a planet like that is not really needed. 700% + 100%x3 and you already have a production powerhouse. Put the MC there, and you still have one good production powerhouse. Let that planet be and build the MC on another planet without bonuses and 3-4 factories and you have another production powerhouse.

Two manufacturing powerhouses might be better than one single uber planet. For a number of reason.
1. surplus shield waste
2. you can only build one item per turn, no matter how many points you convert
3. If for some reason you lose your uber-planet, the second powerhouse can be used to re-take that planet much easier than using your low production worlds.

Both strategies are fine, imo. I likewise tend to go with the single uber planet, but I also see the benefit of not doing that. It's not an automatic choice either, but situational on which I will choose.

I'd put a mfg capital on a large planet, one where I can have plenty of mfg capacity, plus room for achievements, trade goods, etc. Not alot of room for that on your homeworld.