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Howdy,
That's a good idea, and not just limited to Hivers and Hexes. By mixing up the basic building block when designing deckplans you can make your creation more individualistic and get away from the human standard of 4 straight walls. I use ovals for Aslan design myself for one example. And I did an Alien/HR Geigerish mystery craft way back by using very organic shapes.
I would say that as nice as the idea of "Hiver" coming from first contact idiocy* I'd hope by the time we really reach the stars such simple minded prejudices and presumptions would be lost, but I'll bet I'm wrong
* example: "We have discovered India therefore these savages must be Indians."
So I'm not calling the idea stupid Ran (just the dummy on that first contact
) but I'm not sure I'd use it for another reason. Bee-hives aren't hexagonal. Honeycombs are but that is a small part of the hive. Still I do like the hexagonal idea from another perspective, that of a geodesic design. If you aren't familiar with geodesics and more importantly Buckminster Fuller please explore this site:
http://www.bfi.org/domes/
Basically for your Hiver design idea a geodesic dome makes a lot of sense. Sphere's are the best way to build large enclosed volumes (uses least material) and made of triangles arranged as interlocking hexagons is the best way to do it from a materials light but strong approach.
The first contact humans may very well have noted the hex design on the hull, perhaps even in the jump-grid glow and drew the analogy to honeycombs and been ready for slapping the Hiver name on whatever was inside. Which brings us back around to your idea, so yes, now I can get behind it
Now internally, how would the Hiver ship be built? I'd propose dividing the sphere into two domes, the "top" being the living space and the "bottom" being the engineering space.
The "top" would be mostly open and flat with an artificial grass-plains environment complete with some small animals and insects, a few trees and other plants, and a watering hole. While overhead the dome would be a holographic recreation of the skies of their homeworld, with hidden sytems to create rainfall and winds and temperature. The edges of the field would house camouflaged interfaces and control stations, as well as huge airlocks with open top grav-sleds for planetary access. I'd also put the, er, sanitary facilities
here too. They would consist of nothing more than designated areas with quick drainage and clean-up bots that come out when the job is done. The illusion of being on the Hiver homeworld would be most convincing close to the center, probably where the watering hole would be, and less so at the perimeter, especially at the control stations.
The "bottom" would have all the fuel and machinery, and the maintenance bots to handle it via remote operation. The weapons systems would also probably be in this hemisphere and again remotly operated. And the cargo holds, yet again serviced by bots, with remote small craft even, would also be "down" here.
Dang
Now you've got me all interested in doing a set of deckplans for one of these monsters and so little time
Thanks for the inspiration