Sub Defensive Warfare

Abstract

The Submarine Acoustic Warfare (SAWS) Development Program develops acoustic countermeasures, submarine defense capabilities, external launch systems and all acoustic augmentation systems for the U.S. Navy submarines. The SAWS Development Program is comprised of the Submarine Defensive Warfare Program. Project 1265 Sub Defensive Warfare Submarine Torpedo Defense System (SubTDS) The first development (Increment 1) effort of the overall Submarine Torpedo Defensive Systems (SubTDS) program is focused on delivering full internal countermeasure launcher (ICL) functionality to all submarine in the fleet via the Acoustic Device Countermeasure (ADC) MK5 effort. The ADC MK 5 acoustic countermeasure (ACAT III) developmental contract awarded in Sep 2018 and is currently in the Engineering and Manufacturing Development (E&MD) phase. The ADC MK5 development includes delivering fully functional test units and Engineering Development Model (EDM) variants. The ADC MK5 will bring new technologies, including adaptability, packaged in a three-inch diameter body. The ADC MK5 efforts include on- going development such as component and subsystem design, in support of the Preliminary Design Review (PDR), Critical Design Review (CDR), and award of multiple ADC MK5 EDM units. FY24 funding will include EDM-2 Test Readiness Review (TRR) and will begin delivery of one hundred and twenty-two (122) EDM-2 units. Twenty (20) units to be utilized for Environmental Qualification Testing (EQT), three (3) units to be utilized for HERO testing, and ninety-nine (99) units to be utilized for additional Developmental Testing (DT). FY24 will complete deliveries of STU-E and continue Hardware-In-the-Loop (HWIL) integration of STU-E into the Weapons Analysis Facility (WAF) testing Procurement of long lead items for eighty-four (84) Low-Rate Initial Production (LRIP) units will also begin in FY24 in preparation for initial deliveries beginning in FY25. FY25 efforts will include Production Readiness Review (PRR) and will begin delivery of the eighty-four (84) LRIP units to be utilized for Operational Testing (OT) beginning in FY26. Independent Logistics Assessment (ILA) will be completed in FY25. Developmental Testing (DT) and Environmentally Centric Weapons Analysis Facility (EC-WAF) / Hardware in the Loop (HWIL) of EDM-2 will continue in FY25. SIB funds received will support Sub TDS industrial base efforts. Additionally, FY25 accounts for procurement of 30 LRIP units that will begin delivery in FY26 and FY26 accounts for procurement of 29 LRIP units that will begin delivery in FY27. The next development in the SubTDS program (Increment 2) focuses on the development of the External Countermeasure Launcher (ECL) hosted 6-inch acoustic countermeasure (to be known as the ADC MK6 effort), Tactical Decision Aid, and integration with ship systems for to provide improved adaptive capabilities leading up to a contract or agreement award in FY25. The Undersea Defense Working Group (UDWG) is a working group comprised of fleet, resource sponsor, (testing community) and acquisition community representatives to assess fleet threats and the effectiveness of our countermeasure and systems against these threats, both known and projected. This includes associated studies, demonstrations, models, and simulations. The Technical Direction Agent (TDA) and In-Service Engineering Agent (ISEA) will provide hardware and software development support for Acoustic Devices Countermeasure (ADC) as well as Countermeasures Set, Acoustic (CSA) systems, future variants, and Acoustic Augmentation Support Systems (AASS) in the Acoustic Augmentation Support Program (AASP), and advanced communication systems improvements in support of the AASP, including component level technical insertion. PMS415 Submarine Tethered Expendable Buoy (STEB) effort is limited to the development of changes to the internal countermeasure launcher, specifically the breech door, to integrate STEB. This integration will provide a communications path to and from the buoy, bringing buoy sensor data internal to the submarine.

Document Details

• Document Type: Project
• Publication Date: Oct 01, 2025
• Source ID: 1265_0101226N_7_1319_PB_2025

Tags

Readers

• Aerospace Engineering
• Naval Mine Countermeasure Systems Development.