Printed from https://fiscalreceipts.com/program/0604288F/ — built September 26, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Survivable Airborne Operations Center (SAOC)
Watch this program
Budget figures
$1.83B discretionary + $6.80M one-time reconciliation. Discretionary change vs FY2025 enacted: +12.9%.
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 | $717.6M |
| FY25 | $1.62B |
| FY26 | $1.83B |
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
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 | FY16 | FY17 | FY18 | FY19 | FY20 | FY21 | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuals | $0 | $0 | $6.14M | $7.17M | $12.2M | $50.0M | $91.4M | $94.7M | $717.6M | ||
| Enacted | – | $0 | $7.85M | $7.44M | $12.7M | $59.4M | $95.8M | $98.2M | $888.8M | $1.62B | |
| Request | – | $7.85M | $9.74M | $16.7M | $76.4M | $133.3M | $203.2M | $888.8M | $1.69B | $1.83B |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2024 book requested $888.8M for FY2024; the PB2026 book reported $717.6M as actual total obligation authority — $171.2M below the request. 717.6 − 888.8 = -171.2 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 — Survivable Airborne Operations Center (SAOC)
The Survivable Airborne Operations Center (SAOC), E-4C, replaces the aging E-4B fleet, which faces capability gaps, diminishing manufacturing sources, increased maintenance costs, and parts obsolescence as it approaches the end of its serviceable life. SAOC provides the President of the United States (POTUS), the Secretary of Defense (SECDEF), and the Joint Chiefs of Staff (JCS) a worldwide, survivable, and enduring node of the National Military Command System (NMCS) to fulfill national security requirements throughout all stages of conflict. As a command, control and communications center directing US forces, executing emergency war orders and coordinating the activities of civil authorities including national contingency plans, this capability ensures continuity of operations and continuity of government as required in a national emergency or after negation/destruction of ground command and control centers. SAOC fulfills the requirements of the AF Nuclear Mission by providing Nuclear Command, Control and Communications (NC3) capabilities to enable the exercise of authority and direction by the President to command-and control US military nuclear weapons operations. Program funding supports all activities required to execute development of the SAOC Weapon System to include system development, integration of NC3 and other DoD/AF programs into the SAOC weapon system, test activities, pre-operational product support, and Interim Contractor Support (ICS). Funds also support program office operations, management services (Federally Funded Research and Development Centers [FFRDC], Advisory and Assistance Services [A&AS], etc.), Program Management Administration (PMA), security, facilities, prototyping, equipment, implementation of digital program initiatives, and other required program office capabilities. 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 0605829F, 0605831F, 0605833F, or 0605898F. In FY 2024, $1.540M expended for civilian pay expenses in this program element. In FY 2025, $4.000M is forecasted for civilian pay expenses in this program element, and in FY2026, $5.49M is forecasted for civilian pay expenses in this program element. SAOC program transitioning from BA04 to BA05, System Development and Demonstration (SDD), in FY26. This effort is in Budget Activity 4, Advanced Component Development and Prototypes (ACD&P), because efforts are necessary to evaluate integrated technologies, representative modes or prototype systems in a high fidelity and realistic operating environment.
Mission — Survivable Airborne Operations Center
The Survivable Airborne Operations Center (SAOC), E-4C, replaces the aging E-4B fleet, which faces capability gaps, diminishing manufacturing sources, increased maintenance costs, and parts obsolescence as it approaches the end of its serviceable life. SAOC provides the President of the United States (POTUS), the Secretary of Defense (SECDEF), and the Joint Chiefs of Staff (JCS) a worldwide, survivable, and enduring node of the National Military Command System (NMCS) to fulfill national security requirements throughout all stages of conflict. As a command, control and communications center directing US forces, executing emergency war orders and coordinating the activities of civil authorities including national contingency plans, this capability ensures continuity of operations and continuity of government as required in a national emergency or after negation/destruction of ground command and control centers. SAOC fulfills the requirements of the AF Nuclear Mission by providing Nuclear Command, Control and Communications (NC3) capabilities to enable the exercise of authority and direction by the President to command-and control US military nuclear weapons operations. Program funding supports all activities required to execute development of the SAOC Weapon System to include system development, integration of NC3 and other DoD/AF programs into the SAOC weapon system, test activities, pre-operational product support, and Interim Contractor Support (ICS). Funds also support program office operations, management services (Federally Funded Research and Development Centers [FFRDC], Advisory and Assistance Services [A&AS], etc.), Program Management Administration (PMA), security, facilities, prototyping, equipment, implementation of digital program initiatives, and other required program office capabilities. 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 0605829F, 0605831F, 0605833F, or 0605898F. In FY 2024, $1.540M expended for civilian pay expenses in this program element. In FY 2024, $4.000M is forecasted for civilian pay expenses in this program element. The FY 2026 request for SAOC includes $1,826,328 thousand of discretionary and $6,800 thousand of mandatory (reconciliation) for a total of $1,833,128 thousand. The mandatory funds address EMD in FY 2026. Further information for this reconciliation request is provided in Chapter 8 (Nuclear) of the Reconciliation Exhibit. This program is in Budget Activity 5, System Development and Demonstration (SDD) because it has passed Milestone B approval and is conducting engineering and manufacturing development tasks aimed at meeting validated requirements prior to full rate production.
Justification
Accomplishments & Planned Programs (2)
SAOC
The SAOC weapon system is comprised of a Commercial Derivative Aircraft (CDA), mission system, and ground support systems. The CDA will be hardened to protect against nuclear and electromagnetic effects and modified with an aerial refueling capability to enable sustained airborne operations. The mission system will integrate secure communications and planning capabilities on modern information technology (IT) infrastructure based on a Modular Open System Approach (MOSA). The ground systems include aircrew trainers, mission crew trainers, maintenance training devices, ground support equipment, test and sustainment system integration laboratories, and other ground systems to enable the operations, sustainment, and future modifications of the SAOC weapon system across the lifecycle.
SAOC
The SAOC weapon system is comprised of a Commercial Derivative Aircraft (CDA), mission system, and ground support systems. The CDA will be hardened to protect against nuclear and electromagnetic effects and modified with an aerial refueling capability to enable sustained airborne operations. The mission system will integrate secure communications and planning capabilities on modern information technology (IT) infrastructure based on a Modular Open System Approach (MOSA). The ground systems include aircrew trainers, mission crew trainers, maintenance training devices, ground support equipment, test and sustainment system integration laboratories, and other ground systems to enable the operations, sustainment, and future modifications of the SAOC weapon system across the lifecycle.
Budget line items(workbook-cited)
P-1/R-1 workbook Total Obligation Authority basis (USD thousands) · PB2026.
Exhibit R-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Research, Development, Test and Evaluation, Air Force | F | FY24 Actuals | $717.6M |
| Research, Development, Test and Evaluation, Air Force | F | FY25 Enacted | $1.62B |
| Research, Development, Test and Evaluation, Air Force | F | FY25 Total | $1.62B |
| Research, Development, Test and Evaluation, Air Force | F | FY26 Disc. Request | $1.83B |
| Research, Development, Test and Evaluation, Air Force | F | FY26 Reconciliation | $6.80M |
| Research, Development, Test and Evaluation, Air Force | F | FY26 Total | $1.83B |
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 — line 1 | $0 | $717.6M | $1.62B | $0 | $0 |
| 646507: Survivable Airborne Operations Center (SAOC) | $0 | $717.6M | $1.62B | $0 | $0 |
| 656507: Survivable Airborne Operations Center | $0 | $0 | $0 | $1.83B | $1.83B |
| Program Element — line 2 | — | $0 | $0 | $1.83B | $1.83B |
Follow the dollar
Appropriation → program element → top high-confidence awards → recipient families → congressional districts.
Follow-the-dollar covers 312 of 1,938 programs — only high-confidence budget→award links are shown. why coverage is partial? →
The diagram illustrates the cited table below — amounts shown in the diagram are transaction sums per award (no citation chips); the per-district obligations in the table cite USAspending queries.
| District | Program obligations |
|---|---|
| CO-04 | $3.42B |
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? →
| Recipient | PIID | Confidence |
|---|---|---|
| SIERRA NEVADA COMPANY, LLC | FA283424CB002 | high |
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 Survivable Airborne Operations Center (SAOC). No program-specific GAO finding for this line is in the ingested data. See the DOD oversight record.
Program dossier
Every sentence below carries its citation — warehouse figures open the citation panel, news claims link the cached source.
Research dossiers exist for 50 of 1,938 programs — the 50 largest fully J-book-detailed programs by FY2026 request. why no dossier here? →
What it is
- Survivable Airborne Operations Center (SAOC), program element 0604288F, is a U.S. Air Force development program funded in the Research, Development, Test and Evaluation, Air Force account.
- The SAOC, designated the E-4C, replaces the aging E-4B fleet, which faces capability gaps, diminishing manufacturing sources, rising maintenance costs, and parts obsolescence as it nears the end of its serviceable life.
- SAOC is intended to give the President, the Secretary of Defense, and the Joint Chiefs of Staff a worldwide, survivable, enduring node of the National Military Command System to ensure continuity of operations and continuity of government during a national emergency or after ground command-and-control centers are lost.
- The program fulfills the Air Force nuclear mission by providing Nuclear Command, Control and Communications (NC3) capabilities so the President can command and control U.S. military nuclear-weapons operations.
- The SAOC weapon system comprises a Commercial Derivative Aircraft (CDA), a mission system, and ground support systems.
- The aircraft is to be hardened against nuclear and electromagnetic effects and modified with aerial-refueling capability for sustained airborne operations, while the mission system integrates secure communications and planning on a modern IT infrastructure built on a Modular Open System Approach (MOSA).
- Ground systems for the program include aircrew trainers, mission-crew trainers, maintenance training devices, ground support equipment, and test and sustainment system-integration laboratories to enable operations, sustainment, and future modifications across the weapon system's lifecycle.
Why it matters
- The program's total funding grows from $1,617,187 thousand in FY2025 to $1,833,128 thousand (about $1.83 billion) requested for FY2026.
- That is a year-over-year increase of $215,941 thousand (roughly $216 million) from FY2025 to FY2026.
- In FY2024 the program recorded actual spending of $717,641 thousand (about $718 million), so the FY2026 request is more than two-and-a-half times its FY2024 execution level.
- The FY2026 request is almost entirely discretionary: a discretionary request of $1,826,328 thousand (about $1.83 billion) makes up the bulk of the total.
- A small reconciliation (mandatory) request of $6,800 thousand (about $6.8 million) is added to the discretionary base to reach the $1,833,128 thousand FY2026 total.
- The money flows through a single named project, the Survivable Airborne Operations Center, funded at about $1,826.3 million in the FY2026 budget year.
- That same SAOC project line was funded at about $1,617.2 million in the current year (FY2025) and about $717.6 million in the prior year (FY2024), showing the program's rapid growth as development advances.
Key players
- The program is run by the U.S. Air Force, with funding drawn from the Research, Development, Test and Evaluation, Air Force appropriation.
- The program's users are the President, the Secretary of Defense, and the Joint Chiefs of Staff, whom SAOC is designed to serve as a survivable airborne node of the National Military Command System.
- Program funding also supports program-office operations and management services, including Federally Funded Research and Development Centers (FFRDCs) and Advisory and Assistance Services (A&AS), alongside Interim Contractor Support during development.
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: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J551
Complete workbook · unchanged saved copy. Saves as PB2026_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2018 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J522
Complete workbook · unchanged saved copy. Saves as PB2018_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2019 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J541
Complete workbook · unchanged saved copy. Saves as PB2019_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2020 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J553
Complete workbook · unchanged saved copy. Saves as PB2020_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2021 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J574
Complete workbook · unchanged saved copy. Saves as PB2021_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2022 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J536
Complete workbook · unchanged saved copy. Saves as PB2022_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2023 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J529
Complete workbook · unchanged saved copy. Saves as PB2023_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2024 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J524
Complete workbook · unchanged saved copy. Saves as PB2024_DoD_R-1_Research-Development-Test-Evaluation.xlsx.
FY2025 Department of Defense Budget: RDT&E Programs (R-1) · comptroller.war.gov
Exhibit R-1 · J532
Complete workbook · unchanged saved copy. Saves as PB2025_DoD_R-1_Research-Development-Test-Evaluation.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 Research and Development Test and Evaluation, Vol. I · www.saffm.hq.af.mil
PDF page 13