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. 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. The intention of this site is to document the role of the u.s Coast guard in the support of the u.s Department of defense radio navigation program, in particular loran.
Loran — an acronym for long range navigation — was a us byproduct of world war ii and was similar in many ways to britain’s gee system. Lo ng ra nge n avigation, or loran, is a hyperbolic navigation system first developed during wwii Now, over sixty years later, every mariner in the world have used or know loran.
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