Q&A · 3:35:35-3:43:53

How Des Moines-class cruisers would transform the wartime Royal Navy

Replacing British heavy cruisers with Des Moines-class ships adds automatic eight-inch guns and advanced radar, overwhelming Graf Spee and Japanese cruisers at range.

Question

What happens if the Royal Navy's County and Hawkins classes are replaced by Des Moines-class cruisers?

Short answer

Britain gains overwhelming cruiser firepower and radar, with ammunition supply for the 5-inch battery as the principal difficulty.

Notes

Replacing the County, Hawkins, York, and Exeter groups with Des Moines-class cruisers would give the Royal Navy about a dozen exceptionally powerful modern hulls. The main logistical problem would be supplying American 5-inch/38 ammunition, while British industry could adapt more readily to the other weapons. Automatic 8-inch Mark 16 guns, long-range fire control, and radar would overwhelm Graf Spee at River Plate. The same combination could turn Java Sea into a long-range engagement in which Japanese cruisers were hit before they could answer effectively.