Quote:
Originally Posted by Twin Wasp
If you look at the charts, both have the same feeder route, both cross LIZZE at 4000 and HAWNN at 3200, both have the same miss, climb to 2100 then a climbing left turn to 4000, join to POM 164 to PRADO. So ?
I don't see any substantial differences either (don't have time for the fine tooth comb treatment).
Assuming that there aren't any substantial differences (other than the absence of the glideslope), my WAG: At one time they weren't as similar.
The ILS is the original 2008 procedure; the LOC a fairly new 2010 amendment (3rd amendment even). Maybe they were different enough in the past to justify separate charts and, having done that, they left it that way. Or something in one of the amendments to the LOC procedure led the FAA to separate them.
If someone is really curious about the answer, email the chart division - they are very responsive to questions about the charts.