Three Dimensional Expeditionary Long Range Radar
The Three-Dimensional Expeditionary Long-Range Radar (3DELRR) program develops the AN/TPY-4 radar system which is the designated replacement for the AN/TPS-75 radar. The AN/TPS-75 is an outdated and unsustainable system which was first fielded in the early 1970s. The 3DELRR system will be the United States Air Force's (USAF's) principal long-range, ground-based sensor for detecting, identifying, tracking, and reporting aerial tracks for the Joint Force Air Component Commander (JFACC). The 3DELRR system consists of the AN/TPY-4 radar and associated ground support equipment which includes Prime Movers, Generators, and other smaller mission support items. The 3DELRR system will provide multiple benefits and increased capabilities to the USAF and the Joint Services, including: the ability to detect and track modern and emerging highly maneuverable, small radar cross-section airborne targets; greater battlefield and battlespace awareness through a precise, real-time air picture of sufficient quality to control individual aircraft under a wide range of environmental and operational conditions; and increased reliability, operational availability, maintainability, transportability, survivability, and sustainability. FY 2027 funding will continue system capability development, which includes continued work on electronic protection (EP) techniques, continued software fixes and Non-Recurring Engineering (NRE) costs. Additionally, FY 2027 funding will support continued test and evaluation activity, to include Initial Operational Test and Evaluation (IOT&E) of the system and Operational Utility Evaluation Test preparation. FY2027 funding will support development of enhanced capabilities of the AN/TPY-4 radar. This program element included all necessary expenses required to manage, execute, and deliver weapon system capability. The use of such program funds would be in addition to the civilian pay expenses budgeted in program elements 0605829F, 0605831F, 0605833F, and 0605898F. This effort is in Budget Activity 4, Advanced Component Development and Prototypes (ACD&P), because efforts are necessary to evaluate integrated technologies, representative modes or prototype systems in a high fidelity and realistic operating environment.
FY2027 planned work - Continue contractor support of test events. - Begin development of Decoy capability. - Begin development of Cooperative Engagement Capability (CEC). - Begin development of Weapons Quality Track capability. - Continue development of Integrated Fire Control Network (IFCN) capability. - Perform system fixes to address deficiencies identified during test events. - Continue funding test support for government led IOT&E efforts.
FY2026 to FY2027 change FY 2027 budget increase is to allow for advanced capability development.
FY2026 plans — current year - Continue the development of electronic protection techniques. - Begin study for development of Decoy capability. - Perform system fixes to address deficiencies identified during test events. - Fund test support for government led test activities.
- Continue integrated test and evaluation activities to characterize system performance. - Continue initial operational test & evaluation to support system fielding decision. - Begin testing of additional CDD required capabilities. - Prepare for Operational Utility Evaluation (OUE) testing.
Read the FY2027 plan →