Oregons main armored belt was thick over the magazines and the machinery spaces and was reduced to at the bow and stern. The main battery gun turrets had thick sides, and the supporting barbettes had the same thickness of armor plate on their exposed sides. The 8 in turrets had 6 in of armor plating and the casemate battery had . The conning tower had thick sides.
Oregons main armored belt was thick over the magazines and the machinery spaces and was reduced to at the bow and stern The main battery gun turrets had thick sides, and the supporting barbettes had the same thickness of armor plate on their exp.osed sides. The 8 in turrets had 6 in of armor plating and the casemate battery had . The conning tower had thick sides.