Loran Integrity Analysis for Required Navigation

The Loran Integrity Performance Panel (LORIPP) completed its 18 month study of the ability of Loran to meet aviation requirements for Required Navigation Performance 0.3 (RNP 0.3) in March 2004. The study examined the ability of Loran to meet on the RNP 0.3 requirements on integrity, availability, and continuity and provide a design for “enhanced Loran” which would allow Loran to reasonably provide RNP 0.3. This is the first time Loran integrity has been examined in the depth required for aviation. Demonstrating integrity is essential. Furthermore, the parameters set by the integrity analysis affect availability and continuity. This paper outlines the integrity analysis and its results, presenting the means by which it was demonstrated that Loran could meet the integrity requirements.