The WWII Radio System That Guided Global Travel

Developed during the Second World War, LORAN used massive radio signals to help ships and planes navigate thousands of miles across the ocean. It acted as a prehistoric version of modern satellite GPS.

Before we had GPS satellites, navigators relied on clever physics to find their location in the middle of the sea. LORAN sent out perfectly timed radio pulses that created a grid pattern, allowing captains to pinpoint their position by measuring signal delays. It was a game-changer for long-range patrols across the vast Pacific theater. Even decades after the war, this technology remained a vital safety net for maritime navigation long before digital maps existed.