Integrated Undersea Warfare

Around the globe, Raytheon is a trusted partner in undersea warfare solutions, helping U.S. and allied naval fleets to detect and defend against a broad spectrum of threats. The company offers the most advanced, integrated

undersea warfare capabilities to support submarine combat, airborne anti-submarine warfare, and organic mine countermeasure missions. 1

AN/AQS-22 Airborne Low Frequency Sonar 

The AN/AQS-22 Airborne Low Frequency Sonar (ALFS) is the primary undersea warfare sensor for the U.S. Navy and Royal

Australian Navy’s MH-60R multi-mission helicopter.

ALFS is highly integrated with the helicopter and other assets, including the MK 54 lightweight torpedo, providing the full

detect-to-engage anti-submarine warfare capability.

This integrated dipping sonar system enables the MH-60R to accomplish the assigned undersea warfare missions of

submarine detection, tracking, localisation and classification. It also performs missions relating to acoustic intercept, underwater

communications and environmental data acquisition.

ALFS is the only in-service dipping sonar with multi-frequency operation. This capability enables the AN/AQS-22 to adapt

its performance to varying environmental conditions. With a rapid search rate, the AN/AQS-22 identifies and neutralises

threats sooner, enabling it to cover a larger area. In addition, it permits a longer detection range over a wider area, reducing

the number of helicopters required to perform active anti-submarine warfare screening.

At 272 kg, ALFS balances capability and weight while delivering the highest degree of operational safety. The reeling machine’s innovative design and cable strength, as well as the

fault monitoring and safety interlocks built into it, make this capability the safest dipping sonar in service today. Power to

the sonar is supplied by the helicopter, eliminating the need for expensive in-unit sonar batteries.

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LOW FREQUENCY SONAR

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MK 54 Lightweight TorpedoThe MK 54 is an affordable and effective solution to add critical anti-submarine warfare capabilities for fleet forces worldwide. It can be incorporated into any modern navy with minimum conversion costs because of its compatibility with more than 20 launch platforms.

Integrated onboard the MH-60R maritime helicopter, the MK 54 is the primary weapon for the helicopter’s anti-submarine warfare mission. The MK 54 is highly integrated with the AN/AQS-22 Airborne Low Frequency Sonar, providing a full detect-to-engage capability.

The MK 54 is the U.S. Navy’s next-generation anti-submarine warfare weapon deployed from surface ships, helicopters and

fixed-wing aircraft to detect and attack underwater targets. Sophisticated processing algorithms allow the MK 54 to analyse the information, edit out false targets or countermeasures, and pursue identified threats. The MK 54 is designed for both deep water and littoral environments, making it the only lightweight torpedo capable of striking any underwater target in the world’s oceans, regardless of water depth.

The MK 54 program leverages the most modern torpedo technologies from the MK 50 and MK 48 advanced capability programs. It also uses the proven MK 46 warhead and propulsion subsystems. The result is a low-cost weapon that meets all performance requirements for littoral warfare.

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LIGHTWEIGHT TORPEDO

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