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This information may not be accurate or current and is not valid for navigation, flight planning, or for use in flight.
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HLN - HELENA RGNL
HELENA, MT
INSTRUMENT APPROACH TO RUNWAY 27
APPROACH AIDS INFORMATION AS PUBLISHED ON 05 JUNE 2008
ILS (CAT. I) RWY 27
Approach bearing
Magnetic bearing: 267
True bearing: 283
Magnetic variation: 16E
Localizer information
Type: LOC
Frequency: 110.10 MHz
Identification code: I-HLN .. .... .-.. -.
Antenna location: 46-36-32.890N / 112-00-08.439W
Course width: 3.93 degrees
Glide slope information
Type: STANDARD GLIDE SLOPE
Glide slope angle: 3.00 degrees
Antenna location: 46-36-15.952N / 111-57-59.219W
-1019 ft. in from approach end of runway 27
Runway elevation at GS: 3845.80 ft. MSL
Outer marker information
Type: OUTER MARKER BEACON ONLY
Name: FERRI
Location: 46-35-08.396N / 111-51-04.201W
4.7 nm (28770 ft.) from the approach end of runway 27
Middle marker information
Type: MIDDLE MARKER BEACON ONLY
Location: 46-36-04.064N / 111-57-02.785W
0.5 nm (3100 ft.) from the approach end of runway 27
No inner marker navaid
Remarks
- ILS UNMONITORED WHEN ATCT CLOSED.
- LOC BC UNUSBL BYD 22 DEG RGT OF CRS; UNUSBL WITHIN 2.7 DME.
