# Project 671308 — C-5 Modernization Efforts

**Program element:** 0401119F — C-5 Airlift Squadrons (IF)  
**Project:** 671308  
**Component:** U.S. Air Force  
**Appropriation:** 3600 — RDT&E, Air Force  
**Budget Activity:** 7 — Operational System Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0401119F/671308  
**Parent:** https://hitchintel.com/programs/0401119F

## Summary

Project 671308 — C-5 Modernization Efforts requests $28.7M in FY2027, 38% of the $76.2M requested for program element 0401119F, up 220% on FY2026. 3 R-2A activities decompose the request.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.1 |
| FY2026 | Enacted | 9.0 |
| FY2027 | Request | 28.7 |
| FY2028 | Outyear | 62.7 |
| FY2029 | Outyear | 96.5 |
| FY2030 | Outyear | 139.5 |
| FY2031 | Outyear | 251.6 |

> Estimate types are not summed. This project is one leaf of PE 0401119F; the PE total is the sum of its projects, never added to them.

## What project 671308 buys

In accordance with Air Force's strategic direction, C-5 Modernization Efforts funding supports Next-Gen Airlift (NGAL) Analysis of Alternatives (AoA) and Concept Development efforts. NGAL is projected to fully replace the C-5M fleet tentatively in FY 2050 and maintain the Strat Air program floor of 223 C-17 aircraft and 52 C-5 aircraft per the FY 2013 National Defense Authorization Act (NDAA). NGAL efforts will include but not limited to operational analysis, concept development, and acquisition strategy framework to prepare for Milestone A approval and entry into the Technology Maturation and Risk Reduction (TMRR) phase of a major defense acquisition program. This program element may include necessary civilian pay 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 element 0605827F, 0605828F, 0605829F, 0605831F, 0605832F, 0605833F, 0605898F, 0606398F.

**R-3 lines of work:** Product Development; Support; Management Services.

## Activities (R-2A) — 3

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| Holistic Avionics Grounding Avoidance and Recapitalization (HAGAR) | 0.0 | 8.8 | 19.8 | +126% | [a2](https://hitchintel.com/programs/0401119F/671308/a2) |
| Next Generation Airlift (NGAL) | 0.0 | 0.2 | 8.9 | +4350% | — |
| C-5 Modernization Efforts | 0.1 | 0.0 | 0.0 | — | — |

> 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.

### Holistic Avionics Grounding Avoidance and Recapitalization (HAGAR)

Plans include but not limited to LRU testing, development and modification activities, software development, data, cyber security, testing, installation, spares, Systems Integration Lab (SIL), prototypes, and other program support activities. Funding may be used to address Diminishing Manufacturing Sources (DMS).

Full year-by-year narrative: https://hitchintel.com/programs/0401119F/671308/a2

### Next Generation Airlift (NGAL)

**FY2027 planned work.** Analysis of Alternatives (AoA) evaluating and assessing multiple Next-Gen Airlift (NGAL) concepts to determine long-term strategic airlift strategy for the Air Force.

**FY2026 to FY2027 change.** Funding increased due to kick-off of Next-Gen Airlift (NGAL) Analysis of Alternatives (AoA).

**FY2026 plans — current year.** Preliminary Analysis of Alternatives (AoA) activities.

## 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/0401119F.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0401119F project 671308 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0401119F")`.

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