ils instrument landing system by will parnell. description ils is a ground-based navigation system...
TRANSCRIPT
Description
• ILS is a ground-based navigation system used to provide precision guidance to an aircraft approaching and landing on a runway
• It uses a localized transmitter, a glide path transmitter, an outer marker, and the approach lighting system.
Components
• The localizer provides lateral guidance. It is a VHF(Very High Frequency) radio transmitter and antenna system.
• The glide slope provides vertical guidance. It is a UHF(Ultra High Frequency) radio and transmitter system.
• Marker beacons provide information on the distance from the runway. They are low power transmitters.
• They radiate \an elliptical Beam upward From the Ground.
• Lighting systems enable the pilot to locate the runway accurately. A transmissometer provides the light necessary for this.
• There now are several different alternatives to the ILS including: GPS, WAAS(Wide Area Augmentation System), and LAAS(Local Area Augmentation System).
Conclusion
• The ILS is a precise form of navigation that has been a great help to pilots.
• With the rise of other navigation systems, precise navigation is now pretty common.
References
• http://en.wikipedia.org/wiki/Instrument_landing_system
• http://www.allstar.fiu.edu/aero/ils.htm• https://www.google.com/search?q=ils+navigat
ion&source=lnms&tbm=isch&sa=X&ei=_8qLUsTNJeys2AXHxYGQAQ&sqi=2&ved=0CAcQ_AUoAQ&biw=1680&bih=988&safe=active&ssui=on