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As TACAN is not covered by PANS-AIM no accurcy value is defined for its elevation. However, AIXM provided the possibility to code it using the ElevatedPoint.verticalAccuracy attribute.
Navaid Component
VORTAC
A TACAN may be co-located with VOR. Such a VORTAC will be coded as a Navaid with two correspondning NavaidEquipment instances, a VOR and a TACAN.
For both NavaidEquipment the NavaidComponent.collocationGroup will be equal-to '1'.
If the VOR is the navigable location of the navaid when the navaid is used as significant point:
the NavaidComponent.providesNavigableLocation for the VOR will be equal-to 'YES' and the NavaidComponent.providesNavigableLocation for the TACAN will be equal-to 'NO'.
When using a VORTAC for civil purposes, in general, the VOR provides the bearing information, whereas the TACAN is used for the distance information.
Coding Rules
TBD
Coding Examples
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