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Fiscal Receipts

C-17 Aircraft (IF)

Air ForceRDT&EReconciledPE0401130F
What it is
C-17 Aircraft (IF) (0401130F) is an Air Force research & development line funded in the Research, Development, Test and Evaluation, Air Force account. Its J-book detail breaks the line into 1 project.
What changed
+$68.9M FY25→26 R-1 TOA · PB2026
Who gets it
No single contractor is published as this line's leader. 1 linked award record is listed below. This line's high-confidence links do not clear the floor for a published concentration index — at least 3 awards across 2 contractor families holding positive obligations, with positive net linked dollars. Why the crosswalk is partial.

Budget figures

FY24 Actuals
$2.70MR-1 TOA · PB2026
FY25 Total
$12.0MR-1 TOA · PB2026
FY26 Request
$80.9MR-1 TOA · PB2026
5.4% reconciliation

$76.5M discretionary + $4.41M one-time reconciliation. Discretionary change vs FY2025 enacted: +538.4%.

FY25→26 Change
+$68.9MR-1 TOA · PB2026

Two official figures, one label— reconciled below

Fiscal Receipts uses P-1/R-1 workbook total obligation authority (TOA) as the headline figure sitewide. The workbook TOA includes budget rows that the R-2/P-40 J-book program line excludes — advance procurement in an ordinary year, and in FY2026 the one-time reconciliation appropriation as well. Each row below names the one it is. How the two bases relate →

FY26 Request · $80.9M TOA − $76.5M J-book line = 4.41M (80.9 − 76.5 = 4.4) — $4.41M of one-time FY2026 reconciliation money accounts for this gap — not advance procurement

Figures in the sentence are rounded for reading; the parenthesised arithmetic is the same subtraction in USD millions, at the precision where it closes.

Data coverage

FY2026 award data is a partial year — USAspending reports awards on a rolling basis, and this corpus runs through 2026-09-04. why partial FY2026 data? →

Budget trajectory

The program's 3 summary figures for FY24 to FY26, plotted in fiscal-year order: this line ends higher than it starts. The points are the summary cards above, not a separate derivation; the table beside the chart carries each figure with its own citation.
The program's 3 summary figures for FY24 to FY26, plotted in fiscal-year order: this line ends higher than it starts. The points are the summary cards above, not a separate derivation; the table beside the chart carries each figure with its own citation.FY24: $2.70MFY25: $12.0MFY26: $80.9MFY24FY25FY26
Budget trajectory: one row per fiscal year, carrying the summary figure the sparkline plots. Every figure opens its own citation.
Fiscal yearAmount
FY24$2.70M
FY25$12.0M
FY26$80.9M

All series figures: R-1 TOA · PB2026

Decade view

P-1/R-1 workbook TOA basis, shown compact in $B/$M (the workbook records USD thousands); each figure cites its own President's Budget edition

12 fiscal years of this program as published (FY2015–FY2026): a line through the actuals (filled dots), with the enacted (hollow circles) and request (diamonds) markers each edition reported. Read it for direction, not for precision — this program's actuals line falls across the span. The grid below is the same data as text, one cited figure per cell.
12 fiscal years of this program as published (FY2015–FY2026): a line through the actuals (filled dots), with the enacted (hollow circles) and request (diamonds) markers each edition reported. Read it for direction, not for precision — this program's actuals line falls across the span. The grid below is the same data as text, one cited figure per cell.FY2015 actuals — PB2017 editionFY2016 actuals — PB2018 editionFY2017 actuals — PB2019 editionFY2018 actuals — PB2020 editionFY2019 actuals — PB2021 editionFY2020 actuals — PB2022 editionFY2021 actuals — PB2023 editionFY2022 actuals — PB2024 editionFY2023 actuals — PB2025 editionFY2024 actuals — PB2026 editionFY2016 enacted — PB2017 editionFY2017 enacted — PB2018 editionFY2018 enacted — PB2019 editionFY2019 enacted — PB2020 editionFY2020 enacted — PB2021 editionFY2021 enacted — PB2022 editionFY2022 enacted — PB2023 editionFY2023 enacted — PB2024 editionFY2024 enacted — PB2025 editionFY2025 enacted — PB2026 editionFY2017 request — PB2017 editionFY2018 request — PB2018 editionFY2019 request — PB2019 editionFY2020 request — PB2020 editionFY2021 request — PB2021 editionFY2022 request — PB2022 editionFY2023 request — PB2023 editionFY2024 request — PB2024 editionFY2025 request — PB2025 editionFY2026 request — PB2026 editionFY15FY18FY20FY22FY24FY26

The vertical scale does not start at zero: the baseline sits just below this program’s smallest year, so a low point on this line is not a small amount. Read the shape for direction and the grid below for the figures.

● actuals (line)  ·  ○ enacted  ·  ◇ request — gaps are editions the program is absent from, never interpolated.

Decade series values by fiscal year and President's Budget edition: one row per series (actuals, enacted, request), one column per fiscal year. Every figure opens its own citation.
SeriesFY15FY16FY17FY18FY19FY20FY21FY22FY23FY24FY25FY26
Actuals$72.6M$36.1M$12.0M$21.7M$43.3M$20.7M$11.7M$15.8M$25.4M$2.70M
Enacted$48.8M$12.4M$34.3M$48.3M$21.1M$9.94M$16.4M$25.4M$2.75M$12.0M
Request$12.4M$34.3M$48.3M$25.1M$9.99M$16.4M$25.4M$2.75M$17.4M$80.9M

blank = series not published for this year; – = absent from that edition.

Asked vs spent: the PB2018 book requested $34.3M for FY2018; the PB2020 book reported $21.7M as actual total obligation authority — $12.6M below the request. 21.7 − 34.3 = -12.6 USD millions — the compact figures above are rounded for reading.

Program lineage

No predecessor/successor lineage was recorded for this program element — no FY-to-FY transfer into or out of this line was stated in the ingested J-books, and none was inferred from the program structure.

Description

Mission — C-17A Aircraft

The four-engine C-17 is the only aircraft capable of routine delivery of outsize cargo (tanks, helicopters, etc.) to short, austere airfields. The aircraft can carry up to 102 troops, 36-liter patients or 18 standard 463-L pallets. The C-17 can perform the 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. Strategic Airlift provides essential flexibility when responding to contingencies on short notice anywhere in the world. It is a major element of America's national security strategy and constitutes the most responsive means of meeting mobility requirements. Specific tasks associated with the airlift mission include deployment, employment, sustaining support, retrograde, aeromedical evacuation, and combat redeployment. The C-17 will perform this airlift mission well into this century. C-17 Research, Development, Test & Evaluation (RDT&E) funding efforts 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. Funding supports efforts that include but not limited to Flight Deck Replacement (FDR), Beyond Line of Sight (BLOS), Aircraft Connectivity, and fuel efficiency, 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. The FY 2026 request for C-17A Aircraft includes $76,514 thousand of discretionary and $4,410 thousand of mandatory (reconciliation) for a total of $80,924 thousand. The mandatory funds development activities for aircraft connectivity. Further information for this reconciliation request is provided in Section 20007 (Air Superiority) of the Reconciliation Exhibit. 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. In FY 2024 $0.500 million was expended for civilian pay expenses in this program element, and in FY 2025 $1.275 million is forecast for civilian pay expenses in this program element. This program is in Budget Activity 7, Operational System Development because this budget activity includes development efforts to upgrade systems that have been fielded or have received approval for full rate production and anticipate production funding in the current or subsequent fiscal year.

Justification

Accomplishments & Planned Programs (5)

Beyond Line of Sight (BLOS)

Beyond Line-Of-Sight (BLOS) modernization modification is a development, integration, and retrofit program for C-17 communications. BLOS modifies and improves hardware and software for voice and data communications for Air Traffic Control (ATC) on the C-17. The program will modify both integrated aircraft avionics as well as back-end mission communications and could utilize both military and commercial satellite systems to extend communication ranges. The current efforts include but are not limited to Aero-I/Aero-H modernizations Comm Mod and NSA mandated crypto upgrades. It includes support for flight test, software labs, and systems engineering activities for C-17 research and development programs.

Databus Collection & Analytics (DBCA)

Databus Collection and Analytics (DBCA), previously Databus Reporting System (DBRS), has been renamed to highlight both the hardware and analytics capabilities instead of focusing primarily on hardware. DBCA will capture and apply analytics to all data present across all databuses on the C-17 aircraft to provide and drive efficiencies in predictive maintenance, operations, training, safety considerations and cybersecurity concerns. This comprehensive aircraft data collection system will record, transfer and retain, process and analyze, and provide aircraft and fleet recommendations. Data analysis to be comprehensive enough to forecast/trend root-cause analysis, drive predictive maintenance decisions, accomplish propulsion/APU health trending programs, and provide sortie reconstruction for operator training/debriefing.

Flight Test

Contractor Flight Test support to continue contractor testing of new capabilities as required. Costs include but not limited to maintenance on test aircraft, contractor engineering support for test related technical and safety of flight issues, test planning, test analysis, and support of test execution. It also includes Edwards AFB Flight Test Support where direct costs are related to flight testing and include ramp space, fuel, air traffic control, range costs, etc., which are items each weapon system must pay when using Air Force flight test locations.

Aircraft Connectivity

The National Security Strategy and the National Defense Strategy dictate the importance of connectivity in the Indo-Pacific as well as other regions. Air Mobility Command is driving a system architecture for the C-17 as well as other Mobility aircraft to incorporate a Federated Mission System Reference Architecture. This architecture integrates multiple data sources, connectivity options, analytics, and applications into an interoperable system. The foundation of the architecture is the multiple sources of connectivity to include line of sight (tactical data link), beyond line of sight (satellite connections) and communications within the aircraft. These efforts include Starshield, Tactical Da-ta Link, Hybrid SATCOM, as well as other projects.

Flight Deck Replacement (FDR)

Flight Deck Replacement (FDR) is a development, integration, and retrofit program seeking to modernize the C-17 fight deck and prevents the C-17 fleet from grounding in due to parts obsolescence. The program replaces the obsolete mission flight computer (core integrated processors (CIP)), multi-function displays (MFD), standby engine displays (SED), video integrated processor (VIP), and provides updates for the affected simulators/trainers/labs. The program's capabilities provide an open systems architecture enabling future modular "plug and play”, advancing C-17 flight deck components to current industry standards.

Budget line items(workbook-cited)

P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.

Exhibit R-1

AccountOrgTypeAmount
Research, Development, Test and Evaluation, Air ForceFFY24 Actuals$2.70M
Research, Development, Test and Evaluation, Air ForceFFY25 Enacted$12.0M
Research, Development, Test and Evaluation, Air ForceFFY25 Total$12.0M
Research, Development, Test and Evaluation, Air ForceFFY26 Disc. Request$76.5M
Research, Development, Test and Evaluation, Air ForceFFY26 Reconciliation$4.41M
Research, Development, Test and Evaluation, Air ForceFFY26 Total$80.9M

Budget Details(R-2/P-40 facts)

J-book detail basis (R-2/P-40, USD millions) · PB2026 — a different accounting basis from the P-1/R-1 workbook TOA above; where the two disagree, the reconciliation strip under Budget figures shows both.

Wider than this screen — swipe the table sideways for the remaining fiscal-year columns.

ProjectAll Prior YearsFY24 ActualsFY25 TotalFY26 BaseFY26 Request
Program Element$0$2.70M$12.0M$76.5M$76.5M
672569: C-17A Aircraft$0$2.70M$12.0M$76.5M$76.5M

Follow the dollar

No follow-the-dollar view — none of this program's high-confidence awards records a positive obligation at any place of performance (flows cover 312 of 1,938 programs). why coverage is partial? →

Related awards

Award linkage is shown for 32 of 200 profiled companies — high- and medium-confidence USAspending matches, each row labeled; medium is the weaker evidence. why partial award coverage? →

RecipientPIIDConfidence
THE BOEING COMPANYFA855724D0001high

Contractor concentration

No concentration index is published for this line. This line's high-confidence links do not clear the floor for a published concentration index — at least 3 awards across 2 contractor families holding positive obligations, with positive net linked dollars. An index below that floor is a fact about the sample, not about the market. Whatever further links this line carries are medium-confidence, and what each medium evidence path does and does not establish is set out in the methodology. Both bases are in the downloadable warehouse.

Lobbying mentions

No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.

Oversight

Department-level designation (not specific to this program)

GAO lists 5 high-risk areas for DOD as a whole. That designation covers the department, not C-17 Aircraft (IF). No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.

Program dossier

No research dossier for this program — dossiers cover 50 of 1,938 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →

Primary sources

Open any budget figure for its exact receipt. Verified line items lead with the highlighted government PDF; original spreadsheets download with their budget edition and exhibit in the filename.

Budget totals · TOA sources

Detailed budget justification

The related TOA spreadsheets above use a different accounting basis from R-2/P-40 detail. Their amounts are not assumed to match these detailed sources.