Would two Admiral-class battlecruisers and two related carriers make an effective Pacific battle group?
Short answerYes; based at Singapore with modern antiaircraft weapons and capable air groups, they would have been difficult to confront.
NotesTwo Admiral-class battlecruisers and two related carrier conversions could have formed a powerful fast group in the Pacific. Stationing that force at Singapore in the early 1940s would have posed a serious problem for an opponent. The judgment depends on modernized antiaircraft batteries and capable carrier aviation. This is an explicit counterfactual, useful for examining how standardised fast capital ships might have changed Britain's regional posture.