After World War I, the British Admiralty continued working on new battlecruiser projects. The most modern ship of this class—Hood—was used as the basis for these projects during the design process. In 1920, two projects were presented—K2 and K3—but they were deemed too large. A proposal was made to reduce the caliber to 406 mm, which would help reduce the dimensions, but the Admiralty rejected this idea, and the project failed to be implemented.