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LORAN - Wikipedia LORAN (Long Range Navigation) [a] was a hyperbolic radio navigation system developed in the United States during World War II It was similar to the UK's Gee system but operated at lower frequencies in order to provide an improved range up to 1,500 miles (2,400 km) with an accuracy of tens of miles
Navigating waters before GPS: Why some mariners still refer to Loran-C A quick history lesson on Loran-C: Loran (Lo ng ra nge n avigation) was a hyperbolic radio navigation system developed in World War II Loran grid lines (actually hyperbolas) first appeared on nautical charts during the 1950’s
Loran | History, Signals Accuracy | Britannica Loran, 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
Enhanced Long-Range Navigation (eLORAN) | GPS Lab LORAN, short for long-range navigation, was a hyperbolic radio navigation system developed in the United States during World War II It was first used for ship convoys crossing the Atlantic Ocean, and then by long-range patrol aircraft
Why Was LORAN Such a Milestone? | Time and Navigation With LORAN, navigators went from using mechanical-based time measured in seconds to using radio frequency-based time measured in microseconds (millionths of a second)
Radio History: The Rise, Fall and Resurrection of LORAN LORAN, short for long range navigation, was the first system developed by the United States capable of pinpointing a receiver’s location Learn how this revolutionary technology helped military and civilian ships navigate the ocean for nearly 60 years
GPS. gov: LORAN-C Infrastructure E-LORAN LORAN-C was a ground-based navigation system operated by the U S Coast Guard In May 2009, President Obama declared the system obsolete and announced plans to terminate it
What is Loran-C? - UrsaNav LO ng RA nge N avigation, or LORAN, is a hyperbolic navigation system first developed during WWII Its history includes the British system “Gee”, and the United States variants known as LORAN-A, LORAN-B, LORAN-C, and LORAN-D
Loran-C - Wikipedia The Soviet Union operated a nearly identical system, CHAYKA The introduction of civilian satellite navigation in the 1990s led to a rapid drop-off in Loran-C use Discussions about the future of Loran-C began in the 1990s; several turn-off dates were announced and then cancelled