Printed from https://fiscalreceipts.com/program/C13500/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
C-135
Budget figures
$124.4M discretionary + $41.0M one-time reconciliation. Discretionary change vs FY2025 enacted: -24.5%.
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 · $165.4M TOA − $124.4M J-book line = 41.0M (165.4 − 124.4 = 41.0) — $41.0M 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.
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
| Fiscal year | Amount |
|---|---|
| FY24 | $117.6M |
| FY25 | $111.6M |
| FY26 | $165.4M |
All series figures: P-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
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.
| Series | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|
| Actuals | $58.8M | $144.6M | $117.6M | ||
| Enacted | – | $144.6M | $153.6M | $111.6M | |
| Request | – | – | $153.6M | $146.6M | $165.4M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $153.6M for FY2024; the PB2026 book reported $117.6M as actual total obligation authority — $36.0M below the request. 117.6 − 153.6 = -36.0 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
Description — C-135
The C/KC-135 is the only fully operational tanker in the Air Force inventory and also the oldest fleet by average age. In FY 2024, USAF C/KC-135s offloaded 70,727,162 gallons of fuel to refuel 36,515 aircraft (9% increase from FY 2023) in support of global operations. Procurement funding for ongoing modifications is necessary to ensure the C/KC-135 fleet can sustain global aerial refueling operations through 2050 and beyond. The C/KC-135 is a four-engine aircraft used for long range cargo, passenger airlift and to support theater commanders. The C/KC-135 provides air refueling through either the refueling boom or drogue. As a cargo aircraft, the C/KC-135 can carry six (6) standard 463-L pallets. There are 376 aircraft (375 R/Ts, plus one test tanker) in the C/KC-135 inventory. There are no special purpose aircraft in the C/KC-135 inventory. With an average age of 63 years, the designed service life varies within the fleet with prioritized aircraft for retention certified up to 53,000 flight hours. As the fleet averages 900 flight hours per year, the estimated service life remaining is 30 years (approximately 2053). In accordance with Section 1815 of the FY 2008 National Defense Authorization Act (P.L. 110-181), this item is necessary for use by the active and reserve components of the Armed Forces for homeland defense missions, domestic emergency responses, and providing military support to civil authorities. Funding may be used to address Diminishing Manufacturing Sources (DMS) issues. The FY 2026 request was reduced by $1.066 million for Advisory and Assistance Services to promote efficiencies and advance the policies of the Administration in alignment with Executive Order 14222, "Implementing the President's Department of Government Efficiency Cost Efficiency Initiative. Funding for this exhibit is contained in PE 0401218F.
Justification
Justification — C-135
The FY 2026 request for C/KC-135 includes $124,368 thousands of discretionary and $41,000 thousands of mandatory (reconciliation) for a total of $165,368 thousands. The mandatory funds AERO-I SATCOM, depot standup for Block 45, and MAF Connectivity modification efforts. Further information for this reconciliation request is provided in Section 20007 (Air Superiority) of the Reconciliation Exhibit. FY 2026 primary efforts include KC-135 Block 45, Rudder Position Indicator, AERO-I SATCOM, Real Time Information in the Cockpit (RTIC), Mobile User Objective System (MUOS) Radios, Communication (COMM) 2 Cryptographic and Data program, High Frequency (HF) Modernization and MAF Connectivity programs. These efforts are necessary to modernize C/KC-135 to support warfighter connectivity and ensure the system meets all aerial refueling requirements through 2050.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit P-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Aircraft Procurement, Air Force | F | FY24 Actuals | $117.6M |
| Aircraft Procurement, Air Force | F | FY25 Enacted | $111.6M |
| Aircraft Procurement, Air Force | F | FY26 Disc. Request | $124.4M |
| Aircraft Procurement, Air Force | F | FY26 Reconciliation | $41.0M |
| Aircraft Procurement, Air Force | F | FY26 Total | $165.4M |
Exhibit P-1R
| Account | Org | Type | Amount |
|---|---|---|---|
| Aircraft Procurement, Air Force | F | FY24 Actuals | $49.6M |
| Aircraft Procurement, Air Force | F | FY25 Enacted | $53.0M |
| Aircraft Procurement, Air Force | F | FY 2026 request | $40.0M |
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.
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| Program Element | $745.6M | $117.6M | $111.6M | $124.4M | $124.4M |
Follow the dollar
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (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? →
Rows marked medium rest on evidence weaker than a program-level match, and of more than one kind. An account-based row, where the award drew from the same appropriation account as this program, is an association, not evidence that this program paid for the contract. Where the evidence is instead an FPDS acquisition-program tag or a subaward description, the program is established but which of its budget lines paid is not. An announcement link a recorded review did not leave standing is medium too. Only high rows rest on the contract naming this program with a recorded review upholding it and no recorded rejection or refutation applying.
| Recipient | PIID | Confidence |
|---|---|---|
| CAE USA, INC. | FA822310C0013 | medium |
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-135. 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
FY2026 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O896
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1_Procurement.xlsx.
FY2024 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O868
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_P-1_Procurement.xlsx.
FY2025 Department of Defense Budget: Procurement Programs (P-1) · comptroller.war.gov
Exhibit P-1 · O914
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_P-1_Procurement.xlsx.
FY2026 Department of Defense Budget: Procurement Programs (P-1R) · comptroller.war.gov
Exhibit P-1R · N243,N244
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_P-1R_Procurement.xlsx.
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.
FY2026 Air Force Aircraft Procurement, Vol. I · www.saffm.hq.af.mil