To get a ship to wobble left to right, as if in flight...
I use a Z rotation oscillation of 20... Basically rotate left and right by 20.
Then, rotate the entire ship on z axis by -10, this recenters the ship in the middle of the bank... Mostly.
This creates the banking wobble. Add speed animation and forward and vertical movement to taste.
That's how I make a decent flying unit anyhow... Hope this is what you were looking for.