A fully nuclear Royal Navy after the 1950s

What if the Royal Navy had embraced nuclear power for destroyers and larger ships in the 1950s?

It would produce larger nuclear escorts, potentially around 10,000 to 12,000 tons, with more weapons and helicopters but greater difficulties over overseas docking access.

The scenario defines a nuclear Royal Navy as one that builds nuclear-powered destroyers and larger ships. Frigates would remain conventionally powered because nuclear machinery of the period is considered too noisy for their anti-submarine work. Nuclear propulsion would drive destroyers toward roughly 10,000 to 12,000 tons, far beyond a Type 42-sized hull. The larger ships could carry multiple Sea Dart launchers and helicopters. Britain would also face more difficulties obtaining docking access during global presence deployments.