The US Mark 37 fire-control system was one cause of delay for the Battle-class destroyers. The equipment was worth waiting for, but access and delivery slowed completion. Difficulties fitting the 4.5-inch weapon compounded the schedule pressure. One ship reached the British Pacific Fleet before the war ended, but most of the class arrived too late for the combat role that had driven its development.
Notable Point · 2:56:30-2:57:38
Why Battle-class destroyers reached the war so late
The Battle class illustrates how a ship programme could be delayed by dependencies on both American fire-control equipment and the British 4.5-inch installation.