I had this same idea a while ago, Karronade (a looping animation on a base/stationary object). While it's just not possible in the traditional sense, I came to the understanding that (if using SubModel) it
could be possible if there was a a way to make the
end of the animation a trigger to start it again, or, some kind of timer. So say, one full rotation of the gravity wheel, and that one animation would start again (The idea was for one of those hyperspace stations from Mass Effect). I've always wanted to give it a shot and see how it goes, but I'm still playing with torpedo scripts, got a while to go before I can tamper at that level.
That pod looks fantastic, though!