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Ultra Electronics Ocean Systems is the world leader in expendable acoustic countermeasures for submarines and surface ships. Since 1986, when our legacy company Emerson Electric made its initial countermeasure delivery, Ocean Systems has designed, manufactured and delivered more than 10,000 acoustic countermeasures to navies worldwide including the United States, the United Kingdom, Australia and Canada. In addition, Ocean Systems was recently selected to provide expendable acoustic countermeasures for two new major international submarine programs, including Spain's S-80 Program.

Ocean Systems possesses significant experience and demonstrated expertise in countermeasure technology, techniques, design, development, and device qualification through environmental testing including land-based and at-sea testing. Ocean Systems also partners with industry leading companies to develop and demonstrate effective and innovative technologies for the next generation of torpedo countermeasures. As an example, Ocean Systems is very proud of its involvement with and engagement on multiple Small Business Innovative Research (SBIR) programs and enjoys its role in mentoring the small business concern towards success and continued growth through the SBIR.

Ocean Systems’ Countermeasure Product Line includes submarine and surface ship launched expendable acoustic torpedo and sonar countermeasures which includes ADC, MK2, MK3 and MK4; and submarine launched electro-mechanical countermeasures which includes the NAE Beacon.

Recently, to better serve the torpedo defense customer, we have demonstrated a completely automated surface ship torpedo layered defense system with passive and active full spectrum towed sensors, intelligent controller, extended sensor data fusion, expendable soft kill and hard kill interoperability, state of the art digital towed countermeasure systems, and tactical decision aides. This system called TRAPR is under evaluation as by the USN as part of the AN/SLQ-25D program. It was dubbed the “Super Nixie” during sea trials aboard the USS Bonhomme Richard (LHD-6) in 2006.

Acoustic Countermeasures Products

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Images courtesy of US DoD

The Next Generation Countermeasure (NGCM) will be a fully programmable 3-inch diameter mobile acoustic countermeasure be capable of operating in full duplex mode, and be equipped with an acoustic communication link that will pass tactical information and updates between the CMs and ships/subs operating within the battlespace. Ultra Electronics has invested heavily in technology developments that will enable the NGCM to achieve its mission and has assembled a world class industry team to respond to the NGCM RFP. Foremost, is our commitment to advanced transducer technology in the form of single crystal as it represents the key enabling technology to allow achievement of the added capabilities required for NGCM in a 3-inch countermeasure. Ultra Ocean Systems is the recognized expert in single crystal technology and has executed multiple different single crystal contracts over the past four years. Ultra has also demonstrated countermeasure mobility in a 3-inch form factor with its Swimming MK2 device and is currently beginning development on an externally launched 3-inch mobile countermeasure for an international customer.

The ADC (Acoustic Device Countermeasure) MK3 and MK4 are 6.25-inch (16 cm) diameter by 108 inch long torpedo and sonar countermeasures externally stored and launched from all USN submarines including all USN SSNs, SSBNs and SSGNs. As the original developer and sole producer of the ADC MK4, Ultra Electronics Ocean Systems has provided the fleet this critical capability since 1987. Currently the program is a 50+ million dollar technology transition and production program initiated in 1999 with 1600 units delivered up to two years ahead of schedule through 2009. It achieved 45% savings by integrating 80% subassemblies into two product variants of one device. As a result of Lean Manufacturing, the current unit cost has remained stable, offsetting inflation; material cost growth and reduced acquisition quantities. This performance has been rewarded by three sole source contract extensions and was selected as the Navy’s Best Practices Program for the 2000-2001 ONR Affordability Conference.

The ADC (Acoustic Device Countermeasure) MK 2 is a 3-inch diameter, expendable countermeasure device designed for launch from surface ships and submarines to counter torpedo threats. The ADC MK2 hovers vertically at a pre-selected depth, emitting an acoustic signal. The vertical depth is set prior to launch and maintained by a pressure-controlled motor driving a small, shrouded propeller in the tail of the decoy. Power for the motor and electronics is provided by a thermal battery. In the electronics section mounted below the acoustic projector section the signals are generated and amplified, while the uppermost acoustic projector section consists of ceramic transducers and impedance-matching networks. Variants include the MOD1, MOD3 and MOD4. Ultra Electronics Ocean Systems is proud to be the only manufacturer of these ADC MK2 variants for the USN and Foreign Military Sales (FMS).

The SCAD 101 is self-contained externally mounted and launched torpedo countermeasure fitted to UK Vanguard and planned for Astute class submarines. The SCAD 101 Countermeasure has acoustic multi-mode capability and is completely programmable by the user. Communications with the store including mission programming is available up until the device is launched. Once launched the countermeasure executes its mission and then scuttles to the ocean bottom.

The 100mm diameter x 1000mm long SCAD 102 is the internally launched equivalent to the SCAD 101. It is compatible with all submarines equipped with a 100mm signal ejector. The SCAD 102 is currently fitted to all UK submarines.

LESCUT (Launched Expendable Scutter) is a joint product between Ultra Electronics Ocean Systems and RAFAEL, Israel. LESCUT is a rocket, mortar or over-the-side launched, expendable torpedo decoy based on Ultra’s proven REAM and LEAD technology as well as RAFAEL’s proven SCUTTER electronics and software.

LESCUT can be launched from a long list of standard chaff launchers found throughout the world. The various launch combinations enable decoy range from 2000 meters to close aboard. The LESCUT decoy operation is initiated automatically after water impact. Active acoustic transmissions are detected and analyzed resulting in the decoy selecting and generating the appropriate deception signal for transmission, including Doppler effects, target highlights and target self noise. If no torpedo transmissions are detected, LESCUT incorporates generic responses which are transmitted to counter passive homing torpedoes. The decoy’s “threat library” can be customized for each user’s particular requirements. At the end of life all software is erased and the decoy sinks.

This information is approved for public release in accordance with 22 CFR 125.4(b) (13)

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A 7.5cm reactive, expendable torpedo decoy based on the Ultra Electronics Ocean Systems proven Reactive Acoustic Module (REAM) and the proven RAFAEL SCUTTER electronics, Software and logic.

SUBSCUT (Submarine Scutter) is a joint product between Ultra Electronics Ocean Systems and RAFAEL, Israel. A submarine launched reactive decoy, SUBSCUT is designed to respond to two different types of torpedo simultaneously, whether they are active, passive, or passive homing.

On receipt of a torpedo alert on board the submarine, SUBSCUT may be launched from any submarine signal ejector or from an external launcher. The decoy is initiated automatically after launch, propelling itself to a preset depth between 10 and 300 meters, where it hovers and listens for the torpedo transmissions. Active acoustic transmissions are detected and analyzed resulting in decoy selectivity and generation of the appropriate deception signal for transmission including Doppler effects, target highlights and target self noise. If no torpedo transmissions are detected, SUBSCUT incorporates generic responses, which are transmitted to counter passive homing torpedoes. The decoy’s “threat library” can be customized for each user’s particular requirements. At the end of life the decoy sinks, and all software is erased.

This information is approved for public release in accordance with 22 CFR 125.4(b) (13

PDF Download SUBSCUT PDF

The NAE (Naval Acoustic Electromechanical) Beacon MK3 is a submarine or surface ship-launched underwater expendable countermeasure device designed to counter torpedo threats. The NAE Beacon performs its pre-selected mission while suspended from a float and tether at a pre-selected depth. Power for the motor and electronics is provided by a thermal battery. Variants include the MOD2 and MOD3. Ultra Electronics Ocean Systems manufactures the NAE Beacon MK3 MOD3 for the USN and Foreign Military Sales (FMS).

Ultra Electronics Ocean Systems partnered with AMATEK (formerly SEACON Phoenix) for the design, test and delivery of outboard cable systems and test cables for the Countermeasure Set Acoustic (CSA) MK 2 MOD 4 Launcher.

The Launched Expendable Acoustic Device (LEAD) is a 3-inch diameter, programmable expendable countermeasure device designed for launch from a MK36 Surface Ship Launcher to counter torpedo threats.

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