# Project 675365 — F135 Aircraft Engine Component Improvement Program

**Program element:** 0207268F — Aircraft Engine Component Improvement Program  
**Project:** 675365  
**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/0207268F/675365  
**Parent:** https://hitchintel.com/programs/0207268F

## Summary

Project 675365 — F135 Aircraft Engine Component Improvement Program requests $33.6M in FY2027, 16% of the $205.9M requested for program element 0207268F — a new start, with no prior-year and no current-year money. 1 R-2A activity decomposes the request, 1 new this cycle. Pratt & Whitney is the largest named R-3 performer at $31.7M, 94% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 0.0 |
| FY2026 | Enacted | 0.0 |
| FY2027 | Request | 33.6 |
| FY2028 | Outyear | 34.3 |
| FY2029 | Outyear | 34.9 |
| FY2030 | Outyear | 35.6 |
| FY2031 | Outyear | 36.3 |

> Estimate types are not summed. This project is one leaf of PE 0207268F; the PE total is the sum of its projects, never added to them.

## What project 675365 buys

The F135 Aircraft Engine Component Improvement Program (CIP) supports the F-35 single-engine fighter propulsion system and provides critical sustaining engineering support for the F135 engine. F135 CIP maintains flight safety (highest priority), corrects service revealed deficiencies, improves system Operational Readiness (OR) and Reliability & Maintainability (R&M), reduces propulsion system Life Cycle Cost (LCC), and sustains the propulsion system throughout its service life. Past investments have reduced warfighter Class A rates and decreased Engine Related Loss of Aircraft (ERLOA) and generated significant returns on investments. F135 CIP, through "Lead the Fleet" operational use and accelerated mission testing, identifies and fixes propulsion-related problems ahead of operational impacts. F135 CIP ensures continued improvements in R&M, which reduce out year support costs. Program RDT&E funding may be utilized to implement innovation insertion, capability insertion, software increments, spiral upgrades, modular component swaps, and other insertions consistent with Modular Open System Architecture. Program RDT&E funding may be utilized to design, develop, integrate, and test weapon system and/or component level open architectures. Program RDT&E funding may be utilized to fund the concept refinement, design, development, integration, and testing of interdependent technologies and common architectures that underpin weapon system and portfolio-wide mission outcomes.

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

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| Pratt & Whitney | 31.7 | 94% |
| AEDC | 0.5 | 1.5% |

> 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 |
|---|---|---|---|---|---|
| F135 Aircraft Engine Improvement Program | 0.0 | 0.0 | 33.6 | new | [a0](https://hitchintel.com/programs/0207268F/675365/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.

### F135 Aircraft Engine Improvement Program — NEW START

-Execute approximately 80+ AF-funded F135 engine tasks supporting F-35 flying operations. -Conduct accelerated mission test and analytical condition inspection -Address safety of flight, engine component redesign, repair/rework procedures and life limit/mission analysis. -Validate redesigned parts and new repair procedures…

Full year-by-year narrative: https://hitchintel.com/programs/0207268F/675365/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/0207268F.

## Source & machine access

- **Source:** FY2027 Department of the Air Force RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0207268F project 675365 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0207268F")`.

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