Legend 18: Airport/Facility Directory

28 AIRPORT/FACILITY DIRECTORY LEGEND ILS FACILITY PEFORMANCE CLASSIFICATION CODES Codes define the ability of an ILS to support autoland operations. The two portions of the code represent Official Category and farthest point along a Category I, II, or III approach that the Localizer meets Category III structure tolerances. Official Category: I, II, or III; the lowest minima on published or unpublished procedures supported by the ILS. Farthest point of satisfactory Category III Localizer performance for Category I, II, or III approaches: A – 4 NM prior to runway threshold, B – 3500 ft prior to runway threshold, C – glide angle dependent but generally 750–1000 ft prior to threshold, T – runway threshold, D – 3000 ft after runway threshold, and E – 2000 ft prior to stop end of runway. ILS information is tabulated as indicated in the following sample: ILS/DME 108.5 I–ORL Chan 22 Rwy 18. Class IIE. LOM HERNY NDB. ILS Facility Performance Classification Code FREQUENCY PAIRING TABLE FREQUENCY PAIRING TABLE The following is a list of paired VOR/ILS VHF frequencies with TACAN channels. VHF FREQUENCY TACAN CHANNEL VHF FREQUENCY TACAN CHANNEL VHF FREQUENCY TACAN CHANNEL VHF FREQUENCY TACAN CHANNEL 108.10 18X 108.55 22Y 111.05 47Y 114.85 95Y 108.30 20X 108.65 23Y 111.15 48Y 114.95 96Y 108.50 22X 108.75 24Y 111.25 49Y 115.05 97Y 108.70 24X 108.85 25Y 111.35 50Y 115.15 98Y 108.90 26X 108.95 26Y 111.45 51Y 115.25 99Y 109.10 28X 109.05 27Y 111.55 52Y 115.35 100Y 109.30 30X 109.15 28Y 111.65…