outer plating; hull plating; skin plating
Technical term in shipbuilding and aircraft construction for the external panels, planks, or plating that form the outer skin of the hull or fuselage.
船の外板は海水による腐食に耐えなければならない。
The ship's outer plating must withstand corrosion from seawater.
航空
Lightweight composite materials are often used for aircraft skin panels.