Escort numbers behind a three-LHD Royal Navy

Would building three LHDs also produce a third carrier and more Type 26 and Type 31 escorts?

Probably not a third carrier, but the original two-carrier, three-LHD concept implied six escort groups with roughly nine Type 45s, fourteen Type 26-type ships, and twelve Type 31-type ships.

Alex doubts that three LHDs would bring a third full aircraft carrier. He recalls a two-carrier, three-LHD concept alongside six escort groups: three with two destroyers each and three amphibious groups with one each. His reconstruction gives each group two ASW frigates, with another two for home duties, and one general-purpose frigate, with six more for other tasks. Using Type 26- and Type 31-style roles as shorthand, he arrives at nine Type 45s, fourteen ASW frigates, and twelve general-purpose frigates. The answer does not explain the relationship between five large flight decks and six escort groups.