Q&A · 3:48:31-3:48:48

Cold War cruisers favored 5-inch dual-purpose guns over automatic 8-inch weapons

With little peer gun-cruiser competition, the US Navy valued the 5-inch gun's anti-aircraft utility more than an automatic 8-inch battery.

5-inch Guns 8-inch Guns Anti Aircraft Weapons Cold War Cruisers Naval Gunnery US Navy

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Question

Why did automatic 8-inch guns not become common on Cold War cruisers?

Short answer

There was little surface-gun competition, and 5-inch weapons were better suited to the anti-aircraft mission navies prioritized.

Notes

The caliber choice followed mission requirements rather than technical inability. Missiles and air defense dominated cruiser requirements, and the smaller weapon served that role more effectively when no opposing fleet forced a return to heavy surface gun combat.