Magnetic detonators did not behave identically everywhere because the Earth's magnetic field varies by location. The Royal Navy's worldwide peacetime deployments supplied a broader base of operating data than navies with fewer reasons to send ships across the globe. British testing could still be limited, but recurring service in many regions exposed equipment to more varied conditions. This was an operational and infrastructure advantage that fed into torpedo design.
Notable Point · 58:29-59:30
How worldwide operations improved torpedo testing
Regular operations across different regions gave the Royal Navy data on how local magnetic conditions affected torpedo detonators.