Sea Based X-Band Radar (SBX)

This effort funds the XBR Radome replacement to remedy identified adhesion failures of the external layers and localized seam adhesion failure, including evidence of water and mold intrusion. The Radome production effort is expected to be completed in FY 2025, with installation planned during the 2025 in-port maintenance period, making it possible to continue SBX Homeland Defensive Operations through 2045 or longer.

Vessel Operations and Support sustains the SBX vessel for full operations, ensures readiness for operational contingencies, and provides for resupply of SBX, underway maintenance and annual surveys at sea. The SBX participates in Missile Defense System ground and flight tests per the Integrated Master Test Plan (IMTP). This effort also provides force protection for SBX, maintenance repair, air charter transportation, and supply vessel charters. Specific and/or unique accomplishments to each FY are as follows:

PWS contains non-headquarters management costs in support of MDA functions and activities across the entire Missile Defense System. These functions include Government Civilians and Contract Support Services. This effort provides integrity and oversight of the Missile Defense System as well as supports MDA in the development and evaluation of technologies that will respond to the changing threat. Additionally, PWS includes personnel to support global deployments performing deployment site preparation and activation, and provides facility capabilities for MDA Executing Agent locations worldwide. Other MDA wide costs include: physical and technical security; civilian drug testing; audit readiness; the STEM program; legal services and settlements; travel and agency training; office, equipment, vehicle, and warehouse leases; utilities and base operations across multiple geographic locations; commercial and ancillary facility services; management of all facility aspects regardless of lifecycle stage; supplies and maintenance; compliance with statutory environmental requirements; data and unified communications support; materiel and readiness and central property management of equipment; the FSRM program to keep the Department's inventory of facilities in good working order; and similar operating expenses. PWS is allocated on a pro-rata basis across most Agency PEs; therefore, fluctuates per PE by FY based on the total Agency budget in that FY. Specific and/or unique accomplishments to each FY are as follows:

Perform in-depth XBR maintenance while in-port to keep the radar in optimal condition, enhancing its operational effectiveness, data accuracy, longevity, compliance, readiness, and mission success. Perform technical refresh of XBR equipment, including digital network switches, control equipment, network appliances, global positioning system, and critical cybersecurity testing and upgrades.

Perform required maintenance to achieve annual surveys of vessel power, propulsion, communications and safety equipment and United States (U.S.) Coast Guard certifications of vessel safety procedures, process controls, records and crew training/proficiency. The in-port period will conduct maintenance on major vessel components that require industrial assistance for rigging, specialized tools and skills, cleaning and repairing ballast and fuel tanks, and scaffolding for access to parts of the vessel that are hard to reach at sea and large area preservation. The work will include non-destructive testing of critical hull structure for special surveys of high-stress areas for the vessel's safe operation and to ensure SBX readiness for operational missions.

XBR Operations and Support sustains the XBR at full operations at sea for Homeland Defense, maintaining limited software sustainment for system capability with the Missile Defense System, performing routine maintenance and testing, and fielding additional XBR capability incrementally. This effort provides precision tracking, discrimination, and hit assessment for engagement support in the Missile Defense System ground and flight tests per the approved IMTP. Specific and/or unique accomplishments to each FY are as follows: