Could Britain have built more Queen Elizabeth batches and introduced small-tube boilers in a later ship?
Short answerYes, further batches were a plausible option, but Agincourt's addition after the Revenge orders and her place as a sixth ship make the intended programme less straightforward.
NotesRepeated Queen Elizabeth batches could have combined familiar guns and protection with improved machinery once it became available. The proposal is to build a substantial class while introducing small-tube boilers in a later ship. Agincourt complicates that sequence because she was ordered after the Revenge programme had already begun. A sixth Queen Elizabeth also fitted neither a four-ship division nor an eight-ship squadron neatly. Those circumstances leave room for a more ambitious successor, but they do not establish her final design.