Carrier parity under a different Washington treaty

What if the Washington treaty allowed carriers in battleship numbers while retaining a 27,000-ton limit?

Britain would likely approach the war with many more armored fleet carriers and some smaller specialist carriers.

A 27,000-ton allowance is expected to let Britain build carriers resembling the Implacable class, with armored flight decks and capacity for about eighty aircraft. Britain might approach the Second World War with fifteen such carriers, although construction would take time. Alternatively, some allowance could support smaller carriers of roughly 13,500 tons for anti-submarine and secondary work. That would leave the larger carriers available for fleet operations and could provide two or three carriers for a Taranto-type attack. Japan is also expected to seek more carriers, with construction capacity limiting delivery. American political approval would remain a separate constraint on the timing of a response.