SSTD

The Surface Ship Torpedo Defense (SSTD) program is a Navy initiative funded under Line Item 2213, designed to provide layered torpedo defense for all classes of surface ships. The program's primary objective is to sustain and modernize the deployed AN/SLQ-25A/C (NIXIE) countermeasure systems and transition to the advanced AN/SLQ-25E variant. This modernization effort addresses technical obsolescence, enhances baseline capabilities, and ensures continued protection against evolving torpedo threats.

The SSTD program supports both procurement and engineering activities, with a focus on system upgrades, backfit installations, and resolution of operational issues identified through service reports.

Upgrade kits for AN/SLQ-25A are aimed at updating legacy systems to maintain operational effectiveness. These kits provide modification hardware for the AN/SLQ-25A, ensuring older platforms remain compatible with current threat environments. The goal is to extend the service life of existing systems while bridging the gap until full fleet modernization to the AN/SLQ-25E standard is achieved. Continuous upgrades are justified as a cost-effective measure to maintain fleet readiness and resilience.

Engineering changes support three major efforts: investigating and resolving trouble reports that cause operational downtime, continuing software modernization and system integration, and addressing obsolescence, diminishing manufacturing sources, material shortages, and safety improvements for AN/SLQ-25C/E systems. Funding restores yearly engineering support, procures AN/SLQ-25E backfit kits, and funds technical changes identified during system certification and first article testing. These activities are critical for maintaining system reliability and incorporating new technologies as they become available.

Production engineering in-house provides for specification preparation, production planning, monitoring of contract deliverables, and integrated logistics support. This ensures that production processes meet Navy standards for cost, schedule, and performance, while also addressing obsolescence issues and coordinating government-furnished information and equipment. The objective is to maintain oversight and quality throughout the production lifecycle, supporting efficient and timely fielding of upgraded SSTD systems.

Quality assurance is dedicated to conducting reviews of contractors and subcontractors, ensuring conformity to product performance requirements. This includes the review of objective quality evidence and documentation, as well as specialized quality assurance for the Torpedo Warning System. The goal is to guarantee that all delivered hardware meets operational standards and can be reliably integrated into the fleet.

Acceptance test and engineering funds government acceptance testing and environmental qualification testing for AN/SLQ-25 modernization efforts. These tests are conducted by operationally trained subject matter experts and software support engineers to validate system performance under real-world conditions. The objective is to ensure that all new and upgraded systems are fully functional and meet Navy requirements before deployment.

Consulting services and production engineering contractor support provide contractor assistance for production monitoring, installation planning, coordination, and technical services related to the AN/SLQ-25E systems. These activities facilitate efficient program management and technical oversight, ensuring that installations and upgrades are completed on schedule and within budget. The SSTD program's goals are to maintain, modernize, and enhance the Navy's torpedo defense capability, supporting fleet survivability and mission success in contested maritime environments.