A VORTAC stations combines which two functionalities?

A VORTAC station combines the functionalities of VOR (VHF Omnidirectional Range) and TACAN (Tactical Air Navigation). By integrating these two systems, a VORTAC provides a comprehensive navigation solution useful for both civil and military aviation.

The VOR component is utilized for standard navigational purposes, allowing pilots to determine their bearing relative to the station and to navigate along specific airways. TACAN, on the other hand, offers high-precision distance measuring capability along with bearing information, primarily designed for military aircraft but also available for civilian use.

The combination enhances situational awareness and navigation accuracy, as aircraft equipped to interpret signals from both systems can better perform in varied situations. This dual functionality is particularly important for aircraft operating in congested airspace or during complex approaches and landings.

The other options do not represent the functionalities provided by a VORTAC. For example, VOR and GPS positioning or VOR and radar tracking do not encapsulate the tactical navigation service that TACAN provides alongside VOR. VOR and NDB are also distinct systems with separate functionalities and do not relate to the military-oriented features of TACAN.