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AN/SLY-2 (V) Advanced Integrated Electronic Warfare System (AIEWS)

An electronic countermeasures suite is vital to the layered defenses of surface combatants. The AN/SLY-2(V) Advanced Integrated Electronic Warfare System (AIEWS) was intended as the Navys next-generation shipboard electronic warfare system planned for use with the Aegis Combat System and Ship Self Defense Systems. It was a total replacement for the AN/SLQ-32(V) system. Increment 1 of AIEWS would include the capability to detect and identify radio frequency emissions, provide precision angle of arrival information to cue hard-kill fire control system sensors, and launch self-protection decoy devices. Shown in the photograph is a demonstration antenna used during at-sea engineering tests.

The Advanced Integrated Electronic Warfare System (AIEWS) was the Navy's next-generation shipboard Electronic Warfare (EW) system designed to meet the projected threat in the 2005 to 2010 time frame. The primary functions of AIEWS are detection, correlation, and identification of threat emitters as well as automatic employment of coordinated on-board countermeasures.

The US Navy planned to install AIEWS on non-combatant surface ships and surface-combatant ships, including destroyers, cruisers, aircraft carriers, and amphibious ships. In addition, AIEWS is earmarked for installation on the next-generation 21 st Century Surface Combatant (SC-21) class of ships. It was planned for use with the Ship Self Defense System (SSDS), AEGIS Combat System (ACS), and ultimately for AKCITA integration.

The AN/SLY-2(V) was to provides Electronic Support (ES), Electronic Attack (EA), and Electronic Protect (EP) capabilities in the radar and infrared parts of the electromagnetic spectrum. The primary operational use of AIEWS - the replacement for current EW systems (i.e. AN/SLQ-32(V), AN/WLR-1H(V), AN/SSQ-82(V), and other ancillary equipment) - was to provide improved situational awareness, engagement support, counter targeting, and anti-ship missile defense capabilities as an element of a ship's combat system.

AN/SLY-2(V), which would incorporate an open architecture that would allow technology insertion and facilitate use of Commercial-Off-The-Shelf and Non-Developmental Items (COTS/NDI), would be required to operate with and interface to different combat systems.

AN/SLY-2(V) was to be developed in two increments. Increment I provides precision DF, Specific Emitter Identification (SEI), and High Probability of Intercept (HPOI) capability. Increment I would include integrating with the MK 53 Decoy Launching System (DLS), the Integrated Combat Direction System (ICDS), and the ACS. The system would use the AN/UYQ-70 Advanced Display System (ADS) to provide operator displays and generic control and processing functions. The Increment I design would include the interfaces needed to support integration of Increment II EA functions. Increment II incorporates onboard Radio Frequency (RF) and Infrared (IR) EA hardware and software, and cooperative onboard/offboard EA techniques.

On 24 December 1997 Lockheed Martin Integrated Systems, Inc. was awarded a $66,599,433 (excluding award fee) cost-plus-award-fee contract for engineering and manufacturing development of the AN/SLY-2 Advanced Integrated Electronic Warfare System (AIEWS) excluding options. The Naval Sea Systems Command, Arlington VA is the contracting activity. The award calls for Lockheed Martin to deliver 12 Low Rate Initial Production (LRIP) systems, with options for as many as 40 production units from FY01 to FY04. The total AIEWS program reportedly is worth approximately $2 billion over a ten-year period.

Candidate ships for AN/SLY-2(V) back fit were in the ARLEIGH BURKE (DDG-51) class, SAN ANTONIO (LPD-17) class, TICONDEROGA (CG-47) class, NIMITZ (CVN-68) class, ENTERPRISE (CVN-65) class, and WASP (LHD-1) class.

In late 1999 US Navy acquisition chief Lee Buchanan threatened to scuttle the service's Advanced Integrated Electronic Warfare System (AIEWS) program, citing cost increases and schedule delays, despite the system's successful performance during its recent critical design review (CDR).

By 2001 AIEWS development had fallen behind schedule and the initial installation would not be fully integrated with the host combat system. For initial installations, AIEWS would use the same interface as the system it will replace, the AN/SLQ-32(V) electronic warfare system. As a result of this descoped integration, some of the improved capability required of AIEWS cannot be fully used to benefit the combat system. For example, the improved precision angle of arrival information will not be available to cue hard-kill fire control system sensors. The program was re-baselined in FY00 as a result of cost and schedule breaches.

The proposed initial AIEWS/Aegis interface significantly constrained the demonstration of the complete set of capabilities required by the ORD. Although the ORD asserted that it will support the evolutionary development of capabilities to meet the operational requirements, it is ambiguous with regard to what initial functionality is required and the schedule for delivering additional capabilities. This requires ORD clarification and was being addressed.

The requirement was for a platform, with appropriate radar cross-section, that can carry anti-ship cruise missile radio frequency (RF) seekers or acceptable seeker simulators at threat-representative speeds and altitudes. The legacy simulation, identified upfront by the OT community as not meeting the requirement, used a large, slow aircraft that cannot descend to threat-representative altitudes. COMOPTEVFOR and DOT&E pursued the use of an existing target drone, integrated with an anti-ship cruise missile RF seeker. This demonstration project should result in flight demonstrations in FY01 well before the AIEWS OT. If this was an acceptable solution, adequate numbers of these drones would have to be funded for OT.

The Program was terminated April 2002 due to cost and schedule problems. On April, 15, 2002, the Navy canceled the SLY-2(V) AIEWS program because of continuing cost growth and schedule slips. The 1997 estimate for the development was put at US$164 million; by 2002, the estimate had more than doubled to US$375 million. The initial 2002 IOC date has slipped to FY05. Officials believed the program had become too risky.

Navy decided to focus on upgrading the SLQ-32 systems presently installed in Navy ships rather than developing and procuring a new system.

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