You don't need intakes in space, but the Herc textures clearly show five distinct intakes. Maybe its for atmospheric ramjets or something.
I've used Lightwave for all of it, and we're sitting at around 19k polys. I burned a lot of polys on the engine greebles that you can't necessarily see except up close.

if you didn't have the greebles, you'd be at about... oh, 10k polys or so. This is going to keep going up as I put the fuselage molding in, with the pipes and all of that stuff.
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Oops. Um... Make that closer to 34000 polys total. And 15000 of those are greebles and nurnies.

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