Ottawa is a good name, AFAIK not currently used, and yet deserving of attention.
If you're having a hard time coming up with a name for the model itself, just make her the class ship, and think of additional class members later.
So in this case, a similar feature can be in place where the power source holds a mechanical locking mechanism away from those floaty bits held in place, and if the power goes, the mechanical locks automatically engage, thereby keeping said floaty bits from, er, floating away...
Wait, we're over-thinking the plumbing, making it easier to stop up the drain.
In case of power failure, it's held together by bits of string!
By strands of nano-carbon fiber tubule strings! Lighter and stronger than steel!