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Radio beacons: Difference between revisions
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completely forgotten the marker beacons
(completely forgotten the marker beacons) |
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===VORTAC=== | ===VORTAC=== | ||
Often the [[VOR-DME]] part of the [[TACAN]] is also made available for civilian navigation. If so, the beacon is called a '''VORTAC''', but the use is as a normal [[VOR-DME]], in the normal frequency range. The range of the beacon varies. Most have the same range as a [[VOR-DME]] but many will have different ranges. | Often the [[VOR-DME]] part of the [[TACAN]] is also made available for civilian navigation. If so, the beacon is called a '''VORTAC''', but the use is as a normal [[VOR-DME]], in the normal frequency range. The range of the beacon varies. Most have the same range as a [[VOR-DME]] but many will have different ranges. | ||
==Marker beacons== | |||
Runways used to have three horizontal directed radio beacons to aid landing, the [http://en.wikipedia.org/wiki/Marker_beacon marker beacons]. | |||
# Outer marker - Typically placed at 4 NM from runway | |||
# Middle marker - Typically placed at 3500 feet from the runway | |||
# Inner marker - Typically placed at 1000 feet from runway | |||
Distance from runway varies a lot. On many airfields the markers have been replaced with an [[ILS]] and/or [[VOR-DME]]. The outer marker is sometimes combined with a [[NDB]]. | |||
==Further reading== | ==Further reading== | ||
[[Radio navigation]] | [[Radio navigation]] | ||
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==Affected pages etc== | ==Affected pages etc== | ||
This chapter to be removed after being "done". | This chapter to be removed after being "done". | ||
*dunno http://wiki.flightgear.org/VOR | *dunno http://wiki.flightgear.org/VOR | ||
*linked http://wiki.flightgear.org/DME | *linked http://wiki.flightgear.org/DME done | ||
* | *linked http://wiki.flightgear.org/List_of_abbreviations done | ||
*linked http://wiki.flightgear.org/TACAN | *linked http://wiki.flightgear.org/TACAN done | ||
[[Category:Aviation]] | [[Category:Aviation]] | ||