What capital ship might South Africa have received?

What class might a South African navy have received if naval treaties allowed it a capital ship?

South Africa would probably receive the same category authorized for the other dominions, such as a battlecruiser if each was allotted one.

The dominions' equal constitutional standing matters more here than any uniquely South African design. Canada, Australia, India, New Zealand, and South Africa would be expected to receive equivalent treatment under the proposed arrangement. If the common allotment were a battlecruiser, South Africa would likely receive a battlecruiser as well. The exact class therefore depends on the treaty settlement and the wider imperial distribution plan. Parity among dominion navies drives the scenario more than any one preferred design.