What does TACAN provide to suitably equipped aircraft?

TACAN, or Tactical Air Navigation, is a navigation system used primarily by military aircraft that provides crucial information for navigation. The key function of TACAN is to give pilots continuous indications of both bearing and distance to a TACAN ground station. This dual capability allows pilots to accurately determine their position relative to the station, greatly enhancing situational awareness and navigation precision.

By providing continuous bearings, pilots can maintain their course and make adjustments as necessary, while distance information allows them to know how far they are from the station. This is particularly useful during instrument flight rules (IFR) operations where visual references may not be available.

The other options do not accurately depict the functionality of a TACAN system. Visual approach guidance refers to systems like the approach lighting system or precision approach procedures rather than TACAN. Distance-only indications are insufficient since TACAN offers both bearing and distance, making it more versatile. Additionally, TACAN does not deliver weather information, as that is typically the role of systems like radar or weather reporting services.