Strategic Sub & Wpns Sys Supt
Abstract
The Strategic Submarine & Weapon Systems Support program element directly supports the Navy's deterrence mission, specifically the Submarine Launched Ballistic Missile (SLBM). The SLBM, accounting for approximately 70 percent of the accountable nuclear inventory, is the most survivable leg of the triad and foundational to the nation's deterrence strategy. Nuclear deterrence underwrites every U.S. military operation and capability on the globe and serves as the backstop for both our national defense and the defense of our allies. The nation's nuclear triad serves as the bedrock of our ability to deter aggression, assure our allies and partners, achieve U.S. objectives should deterrence fail, and hedge against an uncertain future. This program element focuses on the modernization of the nuclear deterrent, and its role as trusted steward of the safety and security of these weapons. Major projects included in the Strategic Submarine & Weapon Systems Support program include: 1) Joint Warhead Fuze Sustainment Program; 2) Mk4B Shape Stable Nose Tip; 3) Technical Applications Programs; 4) Mk7/W93 Reentry Program; and 5) Integrated Nuclear Weapons Security System Development. The Joint Warhead Fuze Sustainment Program (0951) is an effort to develop advanced components to improve the reliability, safety, and security of Arming, Fuzing, and Firing (AF&F) systems for nuclear reentry systems. The current effort is focused on supporting the alteration of the AF&F system for the MK5/W88 system which will be five years beyond its design life at the scheduled deployment of the AF&F alteration. This effort also supports future utilization of the developed components by the US Air Force and United Kingdom. The Mk4B (formerly referred to as Mk4A) Shape Stable Nose Tip (SSNT) (2021) effort will convert reentry body (RB) forward shell assemblies (FSA's) from legacy carbon composite nose tips to SSNT's. This will require ground and flight testing of SSNT Reentry Body Assemblies, updates and modifications to RB documentation (Weapon Specifications, Interface Control Drawings, product drawings, etc.), updated Fire Control software for fleet implementation, conversion of war reserve RB's to FSA's with SSNT, procurement/conversion of surveillance and flight test units, Strategic Weapons Facility (SWF) logistics implementation planning and execution, review and update Mk4B surveillance planning and the DoD share of National Nuclear Security Administration (NNSA) Office of Secure Transportation (OST) for shipping. The Technology Applications Program (2228) consists of three elements: D5 Life Extension 2 (D5LE2), Multi-Star Enhanced Pre-Launch (MEP), and Systems Engineering Modeling and Simulation. The TRIDENT II modernization, D5 Life Extension 2 (D5LE2), modernizes and replaces the current TRIDENT II D5 Life Extension (D5LE) Strategic Weapons System (SWS). D5LE supports all OHIO Class submarines. At least 12 COLUMBIA Class SSBNs will replace today's 14 OHIO SSBNs beginning in FY2030, D5LE will also support initial missile load-outs on COLUMBIA through the 8th SSBN. Safety critical D5LE missile electronics begin to exceed their qualification period by FY2039. Several D5LE components are obsolete, out of production, and no longer supported by industry. D5LE2 is required to replace D5LE to support later COLUMBIA Class missile inventory starting in FY2039. While the D5LE program simply extended the lifetime of some missile components, D5LE2 will leverage technologies for both the missile and shipboard systems ensuring adaptability and survivability out to the 2080s. The D5LE2 program is a hybrid of pull-through cost-effective technology (e.g. solid rocket motors, ignitors) and redesign candidates (e.g., avionics, guidance, system architecture). The Multi Star Enhanced Prelaunch (MEP) project delivers enhanced Strategic Weapon System (SWS) resiliency by 1) leveraging the capability of the D5 Life Extension Guidance (Mk6 Mod1) to sight two stars vice one allowing for improved in-flight error correction and 2) updating interfaces to the Fire Control and Navigation subsystems enabling enhanced use of Navigation Sonar System (NSS) data for weapon system error control during Prelaunch. This capability reduces SWS reliance on Global Positioning System (GPS) and Bathymetry data which enables operation in environments where GPS is denied and improves SSBN security during patrol. This capability also has potential for future relief to the strict tolerance requirements of the strategic navigator on the current OHIO Class Submarines and the COLUMBIA class program. The Systems Engineering Modeling and Simulation capability will consist of three elements: Model Based Design, SWS Integrated Modeling and Simulation/Common Architecture & Framework, and SWS Enhancement Ground Test. This effort will provide the capability to comprehensively evaluate and test the integrated SWS within representative operational environments, providing unprecedented visibility across the SWS and system performance characterization equivalent to flight testing. This capability will enable trade space analysis to identify technical margin, subsystem interactions, and lifecycle affordability opportunities to include other services and be able to identify the benefits and risks of commonality to the individual programs, requirements and CONOPs modifications that could facilitate commonality, potential common acquisition strategies between the services, and total life cycle cost implications. The Mk7/W93 warhead project (3097), formerly known as the Interoperable Warhead (IW), will design, develop, and test a future Navy warhead to include a new Navy Aeroshell for a SLBM. Early FYDP efforts will primarily consist of developing programmatic planning and structure to support the continuing study and future program along with further exploration and refinement of the concept studies that resulted from the FY 2019 Navy Feasibility Study. The Integrated Nuclear Weapons Security System (INWSS) (3158) efforts support the Nuclear Weapons Security program and SSBN Escort mission. The policies and requirements regarding the safeguard of nuclear weapons within the Department of Defense is established by DoD S5210.41M. Within the Department of the Navy, nuclear weapons are limited to TRIDENT Fleet Ballistic Missiles (FBM), either deployed aboard TRIDENT submarines or located landside at Naval Submarine Base, Kings Bay, or Naval Submarine Base, Bangor where missiles are assembled/disassembled, tested as well as repaired. This project supports efforts directed at improving the current technological baseline through a series of studies. These efforts aim to improve countermeasure technologies to address detection, delay and denial.
Document Details
- Document Type
- R2 Budgetary Justification
- Publication Date
- Oct 01, 2022
- Source ID
- 0101221N_7_1319_PB_2022
- Change Summary Explanation
- The FY 2020 funding was reduced by $4.644M for small business innovative research. FY 2022 decrease of $3.369 million due to rate and miscellaneous adjustments. The net decrease of $29.309M was required to rebaseline D5LE2 and maintain a balanced risk posture. As part of the rebaseline, SSP delayed design milestones. PDR, CDR, and first experimental flight moved one year right, lengthening the development period and depressing the near term ramp. This drove additional risk in production by compressing the production span; PRR and Low-Rate Initial Production also moved one year right. However, Initial Fleet Introduction (IFI) could not move right while maintaining support for COLUMBIA. The PB22 D5LE2 budget reprofile is an executable profile designed to balance risk for the program and ensure sufficient SLBM technology readiness.
- Service Agency Name
- Navy
Entities
Organizations
- United States Navy
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