Why Britain did not want captured German battleships

Captured German ships could transform a small navy, where four vessels might represent half its force, but they were unattractive to Britain. Their ammunition, machinery, training, maintenance, and industrial supply chains differed from Royal Navy practice, making even superficially similar ships such as the Bayern and Queen Elizabeth classes difficult to operate together. Supporting a handful of foreign hulls inside a much larger standardized battle fleet creates a separate pipeline for little proportional gain. British trials also found that Bayern and Queen Elizabeth had incompatible acceleration, handling, and operating patterns despite their superficial similarity.