Four carrier conversions under a looser treaty

If the treaty allowed four carrier conversions per navy, which additional hulls would Britain and Japan use?

The choice depends on which large hulls remain available and how far construction has progressed, with G3 or Admiral possibilities for Britain and another large Japanese hull required after Amagi's loss.

Four permitted conversions would still require four suitable hulls, with the outcome depending on how much construction each navy had completed. Japan's alternatives after Amagi's loss remain uncertain because the availability of its other planned hulls is not established here. For Britain, the options include Admiral-class hulls and G3s treated as barely started ships in this scenario. The G3 option would retain the original hull and machinery basis while redesigning most of the ship as an aircraft carrier. Four G3 conversions could also displace the later Courageous conversions and provide a group of similar, newly built carriers.