AN/URN-25 Tactical Air Navigation System (TACAN)
The Tactical Air Navigation (TACAN) System is a line-of-sight, beacon-type, air navigation aid that provides slant range, bearing, and identification information to TACAN-equipped aircraft in determining the aircraft’s position relative to ownship. The TACAN system consists of the TACAN Transponder Group AN/URN-25 which operates in conjunction with a solid-state, electronically-scanned, Shipboard TACAN Antenna Group OE-273A(V)/URN, complete with integral monitoring and built-in fault locating capabilities. This AN/URN-25 is a dual TACAN system that includes two transponders which provide back-up in case of a transponder failure. One transponder serves as the primary while the other serves as the secondary.
Sources and Resources
Maintained by Robert Sherman
Originally created by John Pike
Updated Wednesday, June 30, 1999 4:31:35 AM