Definition of TACAN
TACAN is a sophisticated electronic navigation system predominantly used by military aircraft to determine their position and direction accurately. This system provides both distance and directional information, making it an essential tool for military airborne operations. In particular, TACAN allows aircraft to navigate more accurately, even during difficult weather conditions.
Functionally, TACAN is a military radio navigation facility that operates by emitting radio signals that can be detected and read by TACAN-equipped aircraft. It uses a similar technique as the VOR (VHF Omni-directional Range) system, but with the added feature of providing distance information. This system works by transmitting radio signals in the UHF band to the receiving aircraft, with the signal being modulated in two ways: the frequency corresponding to the bearing of the TACAN station and the time measured between two pulses for the distance.
TACAN can also provide navigational assistance to civilian aircraft when combined with the VOR system. Indeed, some civil airports are equipped with both VOR and TACAN facilities to provide better navigation coverage for both military and civilian operations.
In summary, TACAN is an indispensable navigation tool used by military aircraft to enhance their navigation capabilities, providing both distance and directional information. The system operates by emitting radio signals, which can be used to calculate the position, distance, and direction of an aircraft, allowing it to navigate more accurately, even in challenging environments.
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