Why the Lion-class battleships kept slipping

Why did the Lion-class battleships take so long instead of being completed to an earlier design?

They lacked wartime priority, so their incomplete state invited repeated changes while carrier losses redirected urgent construction elsewhere.

The Royal Navy wanted the Lion-class battleships but lacked an urgent production slot for them. Because construction had not advanced far, each new idea could still be incorporated instead of freezing a wartime design. Early losses fell heavily on aircraft carriers rather than battleships, pushing replacement carriers and their supporting programs ahead of the Lions. Some carrier losses also followed decisions that departed from the Royal Navy's own operating guidance, so risk-taking as well as enemy action reshaped wartime priorities. Had Britain lost more battleships early in the war, the same hulls would probably have been rushed forward with fewer revisions.