Originally Posted by
USMCFLYR
Yes - I saw the note and looked at the reference.
Tomorrow I'll be asking some of the ATC'ers that I work with to explain this to me further. It sounds more like ATC using radar to guide the aircraft onto a 'fictitious' LOC course. From my perspective - if that LOC signal has not been checked out there it can 't be used - period. If TERPS sent a procedure to me with a LOC fix out at 40nm and there was no ESV request attached - it would be rejected and returned for redesign or request the appropriate ESV - and IF it passed then we would give it to them.
The current SV limits are standards that were written in a different era of technology. Everyday, thousands of airplanes at hundreds of airports are joining localizers outside of 18 miles, and they're all tracking quite reliably.