Overlapping planks of black ironwood pinned over the hull with bronze nails. A blade skids off it as if it were stone.
Ship Upgrade(Hull) , Rare (No)
The ship’s hull gains a +2 bonus to AC and 50 additional hit points, and its damage threshold increases by 5.
The extra weight slows the ship: each of its speeds decreases by 5 feet.
Installation & Price
4,000 gp, installed in 3 days at a shipwright with a dry dock or sky dock.
