Having recently watched a You Tube program about the Daedelus class I had a (potential?) "eureka!" moment.
The Daedelus is a sphere primary hull and a cylindrical secondary with attached warp engines.
The Connie class is a disc primary hull and a (more or less) cylindrical secondary with attached warp engines.
So, how do we get from there to here?
Well, considering that a sphere is the strongest shape in nature, then the Dadelus one makes sense as the starting point.
But the Connie primary is not an ideal disc. If you sorta squint you can see it as a sphere-ish section showing in the top 4 and lower 4 decks with a 2 deck flattened disc in the centre.
So from that, I assume that we started as a (strongest shape) sphere, which (with advances in design and materials technology) flattened out in the middle 2 decks to increase useable space without "bloating" the hull.
Of course "Enterprise" cancels that out and ymmv.
The Daedelus is a sphere primary hull and a cylindrical secondary with attached warp engines.
The Connie class is a disc primary hull and a (more or less) cylindrical secondary with attached warp engines.
So, how do we get from there to here?
Well, considering that a sphere is the strongest shape in nature, then the Dadelus one makes sense as the starting point.
But the Connie primary is not an ideal disc. If you sorta squint you can see it as a sphere-ish section showing in the top 4 and lower 4 decks with a 2 deck flattened disc in the centre.
So from that, I assume that we started as a (strongest shape) sphere, which (with advances in design and materials technology) flattened out in the middle 2 decks to increase useable space without "bloating" the hull.
Of course "Enterprise" cancels that out and ymmv.