29-06-2012, 03:27 PM
Instrument Landing System
Instrument Landing System.ppt (Size: 1.79 MB / Downloads: 40)
ILS Components
Localizer – indicates alignment w/ runway
Glideslope – indicates correct descent path
Outer Marker – Final Approach Fix
Middle Marker – Missed Approach Point
Outer/Middle Marker Beacons
OM – Denotes beginning of final approach segment (Final Approach Fix).
MM – Denotes Missed Approach Point (MAP)
Usually placed at decision height on glidepath.
“If you can’t see the runway yet, go around.”
Represented by indicator lights with accompanying aural tone in cockpit.
How does it work?
VHF Frequency transmits radar signal and intensity data to ILS Signal Deciphering and Display Computer
Localizer signal transmitted in direction opposite of runway to horizontally guide aircraft to touchdown point
Glide-Slope signal transmitted at an angle of 7.5-10 degrees into sky to define vertical descent path to runway touchdown point
On-board antenna system located in aircraft radome receives radar and VHF signals and sends it to on-board ILS computer
Signal data is then displayed on instrument panel gauge which maps the directional, and descent path to the runway
Instrument Landing System.ppt (Size: 1.79 MB / Downloads: 40)
ILS Components
Localizer – indicates alignment w/ runway
Glideslope – indicates correct descent path
Outer Marker – Final Approach Fix
Middle Marker – Missed Approach Point
Outer/Middle Marker Beacons
OM – Denotes beginning of final approach segment (Final Approach Fix).
MM – Denotes Missed Approach Point (MAP)
Usually placed at decision height on glidepath.
“If you can’t see the runway yet, go around.”
Represented by indicator lights with accompanying aural tone in cockpit.
How does it work?
VHF Frequency transmits radar signal and intensity data to ILS Signal Deciphering and Display Computer
Localizer signal transmitted in direction opposite of runway to horizontally guide aircraft to touchdown point
Glide-Slope signal transmitted at an angle of 7.5-10 degrees into sky to define vertical descent path to runway touchdown point
On-board antenna system located in aircraft radome receives radar and VHF signals and sends it to on-board ILS computer
Signal data is then displayed on instrument panel gauge which maps the directional, and descent path to the runway