AN/SQR-18A(V) Sonar Tactical Towed Array System
(TACTAS)
TACTAS is a long cable full of microphones that is towed about a mile behind the ship. It is towed so far behind the ship so as to not let noise radiating from the shipitself interfere with the noise picked up from targets. Using that noise can determine exactly what ship or submarine is being tracked. The AN/SQR-18A(V)3 is a new, commercial off-the-shelf (COTS) implementation of a high performance passive towed array system. The system is smaller, more maintainable, and lower cost than existing, equivalent passive sonars. Open system architecture design and standard Tactical Computer displays provide a smooth path for system integration and addition of new functions or upgrades. Using the same handling equipment as the AN/SQR-18A(V)2 and SQR-19, it complements the SQR-18 Towed Array Already Installed on FF-1052 KNOX class frigates.
Meteorology and Oceanography Center Detachment TACTAS support products describe
oceanographic and acoustic conditions (using range dependent models) in
the prosecution area for towed array ships tasked by CTF-69 for ASW
operations. This message is provided when own ship Sonar In-situ Mode
Assessment System (SIMAS) or the Mobile Environmental Team’s Mobile
Oceanographic Support System MOSS) are not available. It is tailored to
the specific towed array carried onboard. The message is transmitted
prior to the start of a prosecution and daily thereafter or as requested.
Sources and Resources
http://www.fas.org/man/dod-101/sys/ship/weaps/an-sqr-18.htm
Maintained by Robert Sherman
Originally created by John Pike
Updated Saturday, December 12, 1998 7:17:49 AM