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ILS Instrument Landing System. By Will Parnell. Description. ILS is a ground-based navigation system used to provide precision guidance to an aircraft approaching and landing on a runway
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ILSInstrument Landing System By Will Parnell
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+navigation&source=lnms&tbm=isch&sa=X&ei=_8qLUsTNJeys2AXHxYGQAQ&sqi=2&ved=0CAcQ_AUoAQ&biw=1680&bih=988&safe=active&ssui=on