RDT&E Program Element · President's Budget PB2027

C-17A Aircraft

PE 0401130F·U.S. Air Force·Approp. 3600 — RDT&E·BA7 — Operational System Development
FY2027 Request
$178.1M
◆ Scaling +72%
HitchAI read

U.S. Air Force funding ramps 72% to a $178.1M request in FY2027 — the program's peak. In the FY2027 defense authorization, the House added 11% (to $198.1M); the Senate added 3.9% (to $185.1M); House appropriators funded it in full. Boeing leads the industry work.

FY2027 Request
$178.1M
▲ 72% vs FY2026
FY2026 Enacted
$103.5M
▲ 771% vs FY2025
FY2025 Actual
$11.9M
Prior year

For fiscal year 2027, the U.S. Air Force is requesting $178.1M for C-17A Aircraft under RDT&E program element 0401130F, up 72% over FY2026.

Funding trajectory

Funding profile, FY2025–FY2031

Prior years are actuals, the budget year is the request, and the outyears are the FYDP plan. Estimate types are colored and never summed into one figure.

50100150011.9FY25ACTUAL103.5FY26ENACTED178.1FY27REQUEST101.2FY28101.2FY29103.2FY30135.5FY31
Actual Enacted Request Outyear (FYDP)
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual11.9
FY2026Enacted103.5
FY2027Request178.1
FY2028Outyear101.2
FY2029Outyear101.2
FY2030Outyear103.2
FY2031Outyear135.5
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 7 — Operational System Development.

Complete
Research
BA 1–2
Complete
Advanced Technology
BA 3
Complete
Prototyping
BA 4
Current
Development & Fielding
BA 5–7
Inside the program element

1 project rolls up into PE 0401130F

Projects are the summable leaves — the PE total is their sum, never added to it. Program elements and projects carry the full five-year plan; activities stop at the budget year. This PE moves 72% overall, which can hide much larger swings below.

Project 672569

C-17A Aircraft

$178.1MFY2027 request ▲ 72%
FY2025 actual$11.9M
FY2026 enacted$103.5M
FY2027 request$178.1M
Product DevelopmentSupport

C-17 program performs an entire spectrum of airlift missions and is specifically designed to operate effectively and efficiently in both strategic and theater environments. Not only can the C-17 deliver outsize cargo to austere tactical environments, but it also reduces ground time during air and land operations and is the only aircraft capable of routine delivery of outsize cargo (tanks, helicopters, etc.) to short, austere airfields. The C-17 aircraft can carry up to 102 troops, 36-litter patients or 18 standard 463-L pallets. The C-17 will perform it's airlift mission well into this century. Specific tasks associated with the airlift mission include deployment, employment, sustaining support, retrograde, aeromedical evacuation, and combat redeployment. C-17 Strategic Airlift provides essential flexibility when responding to contingencies on short notice anywhere in the world and is a major element of America's national security strategy and most responsive to meet mobility requirements. C-17 program funding supports efforts to include but not limited to Aircraft performance improvements, aircraft mission execution and airspace access mandates (i.e. Communications/Navigation Improvements); flight test activities and facilities; development of solutions for obsolescence and safety of flight issues; systems engineering/program support; support for avionics laboratories; software development, test and integration; block development/change management; developments of solutions for needed upgrades to combat obsolescence and safety of flight issues; and proposal preparation for new projects; Flight Deck Replacement (FDR); Aircraft Connectivity; and, studies to assess survivability efforts of different defensive systems not equipped on C-17 aircraft. Funding request includes Rapid Global Mobility (RGM) platform-related rapid capability development process activities including early planning, analysis and systems engineering activities which provide linkages between operation needs, system performance requirements, technology needs and opportunities, potential lifecycle costs and enabling the technical foundation for material development. This requirement supports performance of a full financial audit as requirement by title 10 U.S.C. Chapter 9A, Sec 240-D.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
Beyond Line of Sight (BLOS)▼ 100%
FY2025 actual$0.7M
FY2026 enacted$0.2M
FY2027 request$0.0M

FY2026 plans — current year BLOS project closure activities and wrapping up Operational Testing reviews.

Flight Test▲ 7%
FY2025 actual$3.4M
FY2026 enacted$5.2M
FY2027 request$5.6M

FY2027 planned work Continued flight test support for related technical and safety of flight issues, test planning, and test analysis activities.

FY2026 to FY2027 change Funding increased due to additional flight test support activities.

FY2026 plans — current year Flight test support for related technical and safety of flight issues, test planning, and test analysis activities.

Aircraft ConnectivityRESTART
FY2025 actual$0.1M
FY2026 enacted$0.0M
FY2027 request$67.1M

FY2027 planned work Design, development, and integration activities for Starshield, Hybrid SATCOM, Avionics Rack, resilient Position, Navigation, and Timing (PNT), and Real-Time in Cockpit (RTIC).

FY2026 to FY2027 change Funding increased due to ramp up of contracting activities for scaled prototyping, design, development, and integration efforts for Starshield, Hybrid SATCOM, Mobility Air Forces mission systems, resilient PNT, and other efforts.

Databus Collection & Analytics (DBCA)
FY2025 actual$2.5M
FY2026 enacted$0.0M
FY2027 request$0.0M
FY2025 actual$5.2M
FY2026 enacted$70.1M
FY2027 request$105.5M

Continuation of engineering and manufacturing development to include but not limited to software development, data, cyber security, testing, integration laboratory updates, and other program support activities.

Read the FY2027 plan →
Congressional action

Congressional marks

Committee marks on the FY2027 request. Adds and cuts are reconciled in conference before they become law.

RequestPresident's Budget
$178.1M
House NDAA (HASC)HASC
$198.1M +$20.0M · +11%
Senate NDAA (SASC)SASC
$185.1M +$7.0M · +3.9%
House Approps (HAC-D)HAC_D
$178.1M full · +$0
▲ $20.0M chamber gap — unresolved as of 2026-07-27. These are FY2027 authorization marks (NDAA); appropriations and the conference agreement may differ.
Who's building it

Where the FY2027 request goes

Performers named in the R-3 exhibit, resolved into industry, government-lab, and unspecified shares. Budget-justification contract funding, not obligations.

Boeing
$108.2M · 61%
C-17 FDR- Flight Deck Replacement · CPFF
Where FY2027 funding flowsShare$M
Industry primes61%108.2
Other / unspecified39%69.9
FY2027 request100%178.1
See Boeing's full federal contract ledger members
Program detail

Mission & acquisition strategy

C-17 program performs an entire spectrum of airlift missions and is specifically designed to operate effectively and efficiently in both strategic and theater environments. Not only can the C-17 deliver outsize cargo to austere tactical environments, but it also reduces ground time during air and land operations and is the only aircraft capable of routine delivery of outsize cargo (tanks, helicopters, etc.) to short, austere airfields. The C-17 aircraft can carry up to 102 troops, 36-litter patients or 18 standard 463-L pallets. The C-17 will perform it's airlift mission well into this century.

The C-17 Acquisition Strategy is based on several separate contracts to support the entire scope of the C-17 weapon system. Globemaster Operational Enhancement (GLOBE) is an indefinite delivery, indefinite quantity (IDIQ) contract used to purchase services and research articles (through delivery orders) to support all RDT&E with our prime contractor. In addition, purchase orders are used to support flight test activities within the projects at Edwards AFB. In addition to GLOBE, the G3 Sustainment contract is also an IDIQ contract that allows for RDT&E with our prime contractor.

Project 672569 — C-17A Aircraft
  • Product Development
  • Support
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Answers are generated from the figures on this page — the FY2027 justification exhibits and the marks tracked above — and nothing else is consulted. Confirm any figure against the cited exhibit before you use it externally.

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Questions this page can answer
How does the FY2027 request compare with FY2026, and what does the five-year plan show?What did the FY2027 NDAA committees do to this request?How is the FY2027 request split between industry and government performers?In plain terms, what is this program element for and how is it being acquired?

This page carries the budget justification and the NDAA marks — nothing else. For what Boeing has actually been obligated, the ledger is at hitchintel.com/vendors; for live solicitations, hitchintel.com/opportunities. Both are member surfaces.

Provenance

Cite this page

Sources
FY2027 Department of the Air Force RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0401130F (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "C-17A Aircraft (PE 0401130F)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0401130F
Machine access
Markdown twin /programs/0401130F.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks