
UNCLASSIFIED
LI 2136 - AN/SQQ-89 Surf ASW Cmbt Sys
UNCLASSIFIED
Navy Page 2 of 28 P-1 Line #38
Exhibit P-40, Budget Line Item Justification: PB 2021 Navy
Date: February 2020
Appropriation / Budget Activity / Budget Sub Activity:
1810N: Other Procurement, Navy / BA 02: Communications & Electronics Equip /
BSA 2: Ship Sonars
P-1 Line Item Number / Title:
2136 / AN/SQQ-89 Surf ASW Cmbt Sys
ID Code (A=Service Ready, B=Not Service Ready): A Program Elements for Code B Items: N/A Other Related Program Elements: 0205620N, 0603553N
Line Item MDAP/MAIS Code: N/A
Overall AN/SQQ-89(V) Program Description:
Anti-Submarine Warfare (ASW) remains a Navy core competency in a dynamic and uncertain maritime environment. U.S. adversaries continue to develop asymmetric capabilities and capacities to deter,
disrupt, or delay the entry of U.S. and allied naval forces, and pose a constant challenge as the Maritime Strategy is implemented. Evolving submarine technologies offer enhanced stealth, speed, endurance,
weapons, and operational proficiency, trends foretelling that the adversary submarine of the future will have a significantly larger sphere of influence, while presenting less vulnerability to ASW forces. The
effective offensive engagement range of the adversary submarine of the future will continue to match or outrange individual U.S. and multinational platform sensors and weapons in many tactical environments.
Submarines are an increasing threat to all Naval and Allied ships, particularly modern diesel and state-of-the-art nuclear submarines, and faster, more accurate torpedoes. Not only can the presence of potential
hostile submarines delay naval combatant action until they are located and neutralized, submarines can also disrupt all seaborne logistics supply for any ground campaign as well as maritime commerce. ASW
forces must be effective in all operating environments, ranging from the deep open ocean to the littorals, and are key to countering adversarial anti-access and area denial strategies.
The AN/SQQ-89(V) Surface Ship ASW Combat System provides integrated Undersea Warfare (USW) combat management, fire control, command and control, and on-board training to enable surface
combatants to engage USW targets in both open ocean and littoral environments. The AN/SQQ-89(V) is a system comprised of many subsystems, which integrate the helo and its sensors, the ship's own
organic sensors, weapons, torpedo detection, and a high fidelity Surface ASW Synthetic Trainer (SAST). Variants of the AN/SQQ-89(V) are currently in operation on in-service CG47 and DDG51 Class Surface
Combatants.
AN/SQQ-89A(V)15 Surface Ship ASW Combat System Upgrade - Detailed Description:
A major upgrade to the AN/SQQ-89(V) legacy system, the AN/SQQ-89A(V)15 significantly decreases ship vulnerability to torpedo attack, improves surface ship USW lethality, and mitigates Commercial-Off-The-
Shelf (COTS) obsolescence and supportability issues. The need for the AN/SQQ-89A(V)15 is articulated in Operational Requirements Document (ORD) #667-76-05 titled 'AN/SQQ-89 Improvement Program'.
The AN/SQQ-89A(V)15 upgrade is programmed for backfit on: select CG47 Class Baseline 3 and 4 (CGs 59-73) ships budgeted under OPN BLI 0960 (Cruiser Modernization); DDG51 Class Flight I/II (DDGs
51-78) ships budgeted under OPN BLI 0900 (DDG Modernization) and OPN BLI 2136 (represented here); and DDG51 Class Flight IIA and onward via OPN BLI 2136 (for DDGs 79-132 represented here) and
SCN BLI 2122 (DDG51 Class Forward Fit for DDGs 133 and follow).
The AN/SQQ-89A(V)15 upgrade, developed under the RDT&EN Program Element (PE) 0205620N Project 1916 Surface ASW System Improvement program, capitalizes on previously fielded AN/SQQ-89(V)
systems. The AN/SQQ-89A(V)15 is comprised of a tactical towed array sensor, the Multi-Function Towed Array (MFTA), and will replace standard, militarized, legacy components with Commercial-Off-The-Shelf
(COTS) hardware to provide an ASW combat system with the capability for mid-frequency bistatic and multi-static sonar operations. The AN/SQQ-89A(V)15 features a mid-frequency bistatic hull/towed Sonar
Echo Tracker Classifier (ETC); hull/towed Sonar with Acoustic Intercept (ACI) fused data for significantly improved torpedo defense; Handling & Stowage Group (H&SG) for MFTA operation; Torpedo Setting
Panel (TSP); passive towed array processing; common sub/surface sensor performance and prediction; common NAVAIR/Surface Light Airborne Multi-Purpose System (LAMPS) processing; portable software;
integrated supportability; and on-board training via the Surface ASW Synthetic Trainer (SAST). The AN/SQQ-89A(V)15 will be interoperable with AEGIS Weapons System (AWS) baselines; is Open Architecture
(OA) compliant (meeting OA Level 3 requirements); provides significant reductions in weight, space, cooling, and power requirements over legacy AN/SQQ-89(V) systems; is Grade A shock qualified; supports
Digital Fire Control Integration (DFCI) capability; and is integrated with the Battle Force Tactical Trainer (BFTT).
AN/SQQ-89A(V)15 Technology Insertion/Refresh - Detailed Description:
Additionally, to be effective against increasingly stealthy threats in an often ambiguous undersea environment, future sensors must be environmentally adaptive, have very low false alarm rates, and exploit
the full range of current and future submarine detection vulnerabilities. Via the Advanced Capability Build (ACB) process under RDT&EN PE 0205620N Project 1916 (ACB-15, ACB-17, ACB-19, etc.), these
types of maturing/proven USW technologies will be folded into the AN/SQQ-89A(V)15 production and future technology refresh programs. Leveraging the submarine community's Acoustic Rapid Commercial-
off-the-Shelf (COTS) Insertion (ARCI) process, the AN/SQQ-89A(V)15 Tech Refresh program procures upgraded software/hardware technology for all CG47 and DDG51 Class surface combatant platforms
with a previously fielded AN/SQQ-89A(V)15. This process has proven to manage obsolescence, take advantage of commercial development efforts, and continue to pace the threat to ensure systems remain
effective well into the 21st century. Studies of the submarine and surface ASW technology show that system upgrades are most critical six to nine (6 to 9) years after initial installation of the AN/SQQ-89A(V)15,
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