# Long Range Discrimination Radar (LRDR)

**R-2A activity** of project MD96 — Long Range Discrim Radar (LRDR)  
**Program element:** 0604873C — Long Range Discrimination Radar (LRDR)  
**Component:** Defense-Wide · **Budget Activity:** 4  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604873C/MD96/a0  
**Parent:** https://hitchintel.com/programs/0604873C/MD96

## Summary

This activity requests $121.1M in FY2027, 100% of project MD96, up 125% on FY2026. The R-2A exhibit describes it across FY2026–FY2027, including what the FY2027 money is planned to buy.

## What the FY2027 request buys

**FY2027 planned work.** - Accelerate delivery of the LRDR software required to track and discriminate advanced threats. - Initiate Model Based Systems Engineering (MBSE) by creating initial models for radar simulations and mitigating legacy document-centric systems to MBSE. - Initiate monthly containerized software deliveries to support system-level development and analysis. - Acquire additional representative Hardware in the Loop (HWIL) strings in government and contractor labs to support high frequency testing in accordance with Integrated Master Test Plan (IMTP) requirements.

**FY2026 to FY2027 change.** Increase from fiscal year (FY) 2026 to FY 2027 provides funding for: - Accelerate delivery of the LRDR software required to track and discriminate advanced threats. - Initiation of Model Based Systems Engineering (MBSE) by creating initial models for radar simulations and mitigating legacy document-centric systems to MBSE. - Initiation of monthly containerized software deliveries to support system-level development and analysis. - Acquisition of additional representative HWIL strings in government and contractor labs to support high frequency testing in accordance with Integrated Master Test Plan (IMTP) requirements.

## Before the request year

**FY2026 plans — current year.** - Complete Expanded Homeland Defense software upgrade. - Deliver expanded Homeland Defense upgrade to the OCL. - Continue capability development to support Next Generation Interceptor addition to the Homeland Defense architecture. - Continue providing Interim Contractor Support (Phase 3) and necessary forward engineering to support CSFS.

## Funding

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 91.7 |
| FY2026 | Enacted | 53.8 |
| FY2027 | Request | 121.1 |

> Prior, current and budget year only — an R-2A activity carries no five-year plan. It sums exactly into its project in the request year and not necessarily in any other.

## Source & machine access

- **Source:** FY2027 Office of the Secretary of Defense RDT&E Budget Justification, Exhibit R-2A, PE 0604873C project MD96 (PB PB2027). Narrative is the government's own text.
- **No marks, no contractors at this grain** — congressional marks land on the program element and R-3 performers on the project.
- **MCP:** `mcp.hitchintel.com` — `budget_get_activity`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*