# Project ER7 — Aircraft Survivability Equipment Development

**Program element:** 0605051A — Aircraft Survivability Development  
**Project:** ER7  
**Component:** U.S. Army  
**Appropriation:** 2040 — RDT&E, Army  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0605051A/ER7  
**Parent:** https://hitchintel.com/programs/0605051A

## Summary

Project ER7 — Aircraft Survivability Equipment Development requests $23.4M in FY2027, 22% of the $106.6M requested for program element 0605051A, up 186% on FY2026. 1 R-2A activity decomposes the request. OGA is the largest named R-3 performer at $17.1M, 73% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 4.5 |
| FY2026 | Enacted | 8.2 |
| FY2027 | Request | 23.4 |
| FY2028 | Outyear | 10.3 |
| FY2029 | Outyear | 10.4 |
| FY2030 | Outyear | 10.4 |
| FY2031 | Outyear | 10.5 |

> Estimate types are not summed. This project is one leaf of PE 0605051A; the PE total is the sum of its projects, never added to them.

## What project ER7 buys

ER7: Aircraft Survivability Development. The objective of the Aircraft Survivability Equipment (ASE) Development project is to improve Radio Frequency (RF) ASE for Army Aviation. AN/APR-39 Radar Warning Receiver (RWR) detects, categorizes, and prioritizes RF emitters and provides a visual / aural alert to aircrew members warning them of targeting by RF-guided weapons. AN/APR-39D(V)2 interim RWR Modernization significantly improves the RF threat coverage, automatic detection and identification of threat types to include bearing and lethality. AN/APR-39E(V)2, Modernized Radar Warning Receiver (MRWR), is an Army Engineering Change Proposal (ECP) to AN/APR-39D(V)2 and is approved in the Acquisition Decision Memorandum (ADM) signed June 24, 2019. This ECP enhances hardware and software upgrades to keep AN/APR-39 technically relevant against new and emerging agile threats faced by legacy platforms in a near peer contest. AN/APR-39E(V)2 is part of the suite of ASE mission equipment for the Enduring Fleet and Multi-Mission Vertical Takeoff (MV)-75 Future Long-Range Assault Aircraft (FLRAA). Radio Frequency Countermeasures (RFCM) focuses on detecting and jamming incoming RF signals. RFCM will provide aircraft with an extra level of security against RF threats to include Unmanned Aircraft Systems (UAS)/Drone technology. ASE is developing RFCM capability for selected aircraft with a Material Development Decision (MDD) planned in the future. Justification: FY 2027 RDT&E dollars will fund AN/APR-39E(V)2 Hardware and Software System Development, UH-60 A-Kit NRE, and Systems Engineering and Program Management (SEPM).

**R-3 lines of work:** Management Services; Product Development; Test and Evaluation.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| OGA | 17.1 | 73% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 1

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Phase 2 Radio Frequency Countermeasure (CM) | 4.5 | 8.2 | 23.4 | +186% | [a0](https://hitchintel.com/programs/0605051A/ER7/a0) |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### Phase 2 Radio Frequency Countermeasure (CM)

Will fund AN/APR-39E(V)2 Hardware and Software System Development, UH-60 A-Kit Non-recurring Engineering (NRE) and Systems Engineering and Program Management (SEPM).

Full year-by-year narrative: https://hitchintel.com/programs/0605051A/ER7/a0

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0605051A.

## Source & machine access

- **Source:** FY2027 Department of the Army RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0605051A project ER7 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0605051A")`.

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