Mediterranean exercises were useful because weather and operating conditions were comparatively predictable and distant from domestic political scrutiny. They also demonstrated British naval power to France and Italy. Calm seas made ASDIC work better, while clear water made large submarines easier targets and fleet exercises gave submariners many tempting battleships to pursue. Carrier aircraft participated in ASW, but the scripted geography and target mix did not reproduce every wartime problem.
Notable Point · 31:29-34:15
Mediterranean exercises gave ASDIC unusually good conditions
The Mediterranean offered controlled training conditions and deterrent value, but calm water and clear visibility could flatter ASW performance.