The value and limits of a submarine fleet depend on whether it emphasizes torpedo attack or mining. Torpedoes and mines create different defensive problems, especially when submarines can seed contested waters. Fear of mine warfare influenced the Royal Navy's early corvette and Flower-class construction. Escort procurement therefore responded to more than the direct threat of submarine torpedo attack.
Notable Point · 59:29-1:00:07
Mine warfare as a driver of escort construction
Mine-laying submarines create a different defensive problem from torpedo attack, helping explain early Royal Navy investment in corvettes and the Flower class.