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LORAN, which is an acronym for Long Range Navigation, was a radio navigation system developed in the United States during World War II. It involved radio signals sent straight out to sea from shoreline antennae. The ships would be able to mark their location on charts by LORAN instruments that compared the arrival time of the radio signals from different shoreline radio towers. The very existence of the LORAN system proves that the earth is flat because the system would not work if the earth were a globe.
The Encyclopedia Britannica gives a succinct description of LORAN:
“Loran, the abbreviation of long-range navigation, the land-based system of radio navigation, first developed at the Massachusetts Institute of Technology during World War II for military ships and aircraft located within 600 miles (about 970 km) of the American coast. In the 1950s a more accurate (within 0.3 mile [0.5 km]), longer-range system (over 2,000 miles [3,200 km]), known as Loran-C, operating in the 90–110 kilohertz range, was developed for civilian use, and the original loran (renamed Loran-A) was phased out.”
LORAN-C was terminated as a service in the U.S. by the U.S. Coast Guard on 8 February 2010. The tallest radio tower used by the Loran-C system was the 1,350-foot tower located at the LORAN Station at Port Clarence in Alaska. Port Clarence is 16 feet above sea level, which would put the top of the radio tower at a height of 1,365 feet above sea level.
What is notable is that the system required that the radio signal be sent straight out to sea to ships on the water. There could be no bouncing of the signals. The system required that the ships receive at least two intersecting radio signals from two different towers to obtain a single line of position. The ship then needed to receive two separate signals from two other towers to obtain a second line of position. Where those two lines of position intersect would give the ship a fix on its position at sea by comparing the shipboard LORAN instrument reading to shipboard LORAN charts.
The LORAN-C system had the capacity to send signals more than 2,000 miles out to sea. Assuming that the towers are 1,365 feet above sea level, if the earth were a globe, there would be a 115-mile hump of water blocking the LORAN-C radio signals. Indeed, if the earth were a globe, the LORAN-C system would only be able to send radio signals 45 miles out to sea, before having the signals blocked by the earth’s curvature. And that is assuming that the signals are being sent out from the tallest tower in the United States.
Ships navigated across the vast oceans for more than 60 years in reliance on the LORAN radio signals. The LORAN system worked. It could not work if the earth were a globe. It could only work on a flat earth. The effectiveness of the LORAN radio navigation system is proof that the earth is flat.
Loran, Radio Navigation, last updated on March 22, 2016, https://www.britannica.com/
Loran-c General Information, U.S. Coast Guard, https://www.navcen.uscg.gov/?
Christopher Lagen, VIDEO: Demolition of America’s largest LORAN Tower, April 29, 2010, http://coastguard.dodlive.mil/
Smithsonian National Air and Space Museum, How Loran Works, March 29, 2013, https://www.youtube.com/watch?
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