Well with a lvl 103 US Seaman, I can tell you they do indeed add repair, restore, and overheat on their own, plus he boosts my speed by a knot, which is evidence that he is increasing the skill of the engineers. I have not seen a difference in aircraft behavior or gunnery skill, but that might be because my pilots suck and my gunners are at the cap.
Based on that, I'd say that if you have 4 or 5 engineers on a battleship, then a Seaman will add more than another engineer will, plus he also gives great repair skill boost.
|