Q&A · 2:26:36-2:27:26

Would four-inch shells penetrate a destroyer's armor?

Destroyer hull plating could be penetrated, but a shell still needed enough explosive power to cause extensive internal damage.

Question

Would four-inch shells penetrate destroyer armor?

Short answer

Destroyers have hull plating rather than an armor belt. The issue is the explosive damage a shell can cause after entering.

Notes

The destroyers discussed have steel hull plating, with thicker plating in some areas, rather than armor. Penetration therefore leaves the question of how much damage a shell causes inside the hull. A 4.7-inch or five-inch shell could produce an explosion large enough to tear open the hull from within. A smaller shell might lack the explosive power to cause the same damage.