Fly and Listen: The AN/AQS-22 ALFS Sonar System
Sept 3/15: Raytheon will get $33 million to make more AN/AQS-22 Airborne Low Frequency Sonar devices. With options, the contract could be worth as much as $98 million.
The AN/AQS-22 Airborne Low-Frequency Sonar (ALFS) will equip the US Nay’s new MH-60R multi-mission helicopters, serving as their primary anti-submarine sensor. The new FLASH sonar operates using lower frequencies and higher-power waveforms than existing dipping sonars, improving long-range detection. The AQS-22 dipping sonar claims 4x the area coverage of current systems, and includes both active or passive sonar modes to help track, localize, and classify submarines. A winching system with up to 2,500 feet of cable raises and lowers the sonar.
The ALFS system complements the MH-60R’s radar, and works in concert with other equipment including active or passive sonobuoys, signal processing improvements that are especially helpful in shallow water. This Spotlight article highlights ALFS-related contracts from 2002 to the present.
Contracts & Key Events
FY 2011 – 2013
FY 2008 – 2010
FY 2003 – 2007
Additional Readings & Sources
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