Why Britain studied corvettes in the early 1960s

Why did Britain examine several corvette designs in 1963 and 1964?

The Royal Navy still expected a possible transatlantic convoy war before later-1960s thinking treated a major conflict as rapidly nuclear.

The corvette studies addressed transatlantic convoy protection in a future war. They preceded later-1960s confidence that a major conflict would become nuclear and end very quickly. The panel contrasts the possibility of intercepting bombers with the difficulty of intercepting missiles. Increasing warhead density also contributed to that changing expectation.