The Royal Navy's immediate answer to Plan Z

How many battleships and carriers would the Royal Navy need in response to Plan Z and other Axis naval building?

By 1942, British plans already provide a strong capital-ship force, while a completed Plan Z remains a much later infrastructure problem.

Plan Z cannot be completed by 1942 because the German yards and supporting infrastructure would need years of expansion. Faster yard expansion would still compete with army and air-force expansion, autobahns, and railway upgrades for limited workers, money, and concrete. The Royal Navy could already expect five King George V-class ships, several Lions, and perhaps a Vanguard, alongside modernized older capital ships. That force is sufficient to answer the German ships likely to exist in the immediate scenario. Italian and Japanese construction presents the more urgent 1942 demand, while Germany becomes a longer-term problem if its enlarged yards and H-class programme survive.