LORAN Day and Night Coverage, 1945

By the end of World War II, LORAN chains consisting of 72 operable stations provided navigation over 30 percent of the globe, mostly in the northern hemisphere. More than 70,000 receivers for aircraft, ships, and submarines had been built. By the height of the Cold War, coverage had extended to 70 percent of the Earth’s surface. The ionosphere and terrain limited daytime coverage, so LORAN was far more effective at night.
Caption:
By the end of World War II, the LORAN system could be used over 30 percent of the globe.
Type: Map
Credit: National Air and Space Museum, Smithsonian Institution.
Origin: National Air and Space Museum, Smithsonian Institution.
Creator: Ashley Hornish
Innovations
Navigation Methods
 
By the end of World War II, the LORAN system could be used over 30 percent of the globe.