When they build a submarine do they put together all the interior components then build the hull around it?

Some aspects could be accomplished this way, but that's not how a submarine in basic is constructed.

https://www.youtube.com/watch?v=_ODDjsK0BOg

Submarine hulls are built in sections and the systems match into them, then each section is joined.



Modifications may possibly be a wee bit distinct. Not precisely. Then the forward finish was reassembled and employed to replace the forward finish of the MTS-626 throughout the conversion process.

. For instance, when the SSBN-626 (a ballistic missile submarine) was converted to the MTS-626 (a moored education ship), they utilised some lessons discovered from Letters from Santa Claus the conversion of the SSBN-635 to the MTS-635.

The forward end of the ship was converted to include certain security gear. Utilizing the lessons discovered from the previous conversion, the forward end of the SSBN-625, a decommissioned submarine, was removed, sliced in half horizontally, and the systems constructed up on that platform