Could the Royal Navy crew six converted carriers?

Could the interwar Royal Navy have found crews for three Admiral- and three Courageous-class carriers?

Yes. Retaining a few hundred more personnel after the First World War would have been modest compared with the navy's overall manpower reduction.

The hypothetical fleet contains three Admiral-class and three Courageous-class carrier conversions alongside Eagle and Hermes. The manpower requirement appears manageable because the Royal Navy released a very large number of personnel after the First World War. Retaining a few hundred more is the estimate offered for the additional requirement. Crew availability in this scenario depends on how far the postwar reductions proceed.