The trim tab also serves as an anode to shield the engine from electrochemical corrosion. Under no circumstances paint the trim tab as it will turn out to be ineffective as an anode.知乎，让每一次点击都充满意义 —— 欢迎来到知乎，发现问题背后的世界。one. Spot the outboard motor on the transom so that it is positio