A big fat
almost nothing. Finding the UA was easy, the third USS in the system had one. Dropping the barnacle back onto UA worked. To obey the law of "screenshots or it did not happen":
Targeting the UA and the Barnacle shows that their centres are just 1m apart. Close enough given how big a barnacle is, the g UA was rolling after being dropped.
However, the space distortion effect of the UA now extends to the barnacle as well:
Hi-Res screenshot can be found at http:!!i.imgur.com!3xBVGSj.jpg (replace ! by /, obviously)
After save/exit and reload, the UA is gone, the barnacle is still there.
I will now limp back to Maia, repair my ship (Cobra Mk III has no place for shields, fuel scoop, cargo rack, vehicle hangar, ADS, DSS, and a AFM), fly back to the UA sector, find another one, and go listen to its music for a while. Just because I can. And try to set up a Youtube account for Cometborne with some video from the interesting part of the experiment in it. Quality could be better, but if wishes were horses...
And yes, I will also upload an instruction video how to make a barnacle fly.