The North Sea as the Royal Navy's permanent opponent

What stabilizing systems did Britain use during the war, and why were they important?

Fins and other stabilizing devices helped ships cope with the North Sea, whose demanding conditions also prepared the fleet for operations elsewhere.

British stabilization work included fitting fins and other devices to ships. The North Sea supplied a persistent reason to improve their behavior in rough water. Its severe conditions are described as a hazard that disregards a ship's status or purpose. Preparing to operate there gives ships and crews capabilities that remain useful when they encounter other opponents and difficult seas.