An escort designed for ocean convoy protection could prioritize range and anti-submarine work, while one accompanying the fleet needed speed, anti-aircraft defence, and weapons for surface combat. Torpedoes and heavier guns consumed weight and space that could otherwise support endurance or ASW equipment. High fleet speed also degraded ASDIC performance, creating a direct tension between screening a manoeuvring battle force and searching effectively underwater. A ship's fittings followed the operational problem it was expected to solve.
Chapter · 18:40-20:11
How escort roles shaped speed, weapons, and endurance
A long-range convoy escort, a fleet screen, and a ship intended to fight surface vessels needed different combinations of speed, weapons, and endurance.