Before revision: alt=|Typical US Air Force TACAN site using a dB Systems Model 900E TACAN Antenna A tactical air navigation system, commonly referred to by the acronym TACAN, is a navigation system used by military aircraft.
After revision: alt=|Typical US Air Force TACAN site using a dB Systems Model 900E TACAN Antenna A tactical air navigation system, commonly referred to by the acronym TACAN, is a navigation system initially designed for naval aircraft to acquire moving landing platforms (i.e., ships) and later expanded for use by other military aircraft.