RDT&E Program Element · President's Budget PB2027

Tacamo Modernization

PE 0605180N·U.S. Navy·Approp. 1319 — RDT&E·BA5 — System Development & Demonstration
FY2027 Request
$1.66B
⚑ Contested — House cuts 6.6%
HitchAI read

U.S. Navy funding ramps 59% to a $1.66B request in FY2027. In the FY2027 defense authorization, the House cut 6.6% (to $1.55B); the Senate funded it in full; House appropriators funded it in full. Northrop Grumman leads the industry work.

FY2027 Request
$1,662.7M
▲ 59% vs FY2026
House mark
$1,552.7M
▼ $110.0M vs request
FY2026 Enacted
$1,044.0M
In law

For fiscal year 2027, the U.S. Navy is requesting $1.66B for Tacamo Modernization under RDT&E program element 0605180N, up 59% over FY2026. In the FY2027 defense authorization, House moved to cut it to $1.55B.

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.

5001,0001,5000727.9FY25ACTUAL1,044.0FY26ENACTED1,662.7FY27REQUEST1,781.6FY281,826.3FY291,348.2FY301,106.5FY31HOUSE
Actual Enacted Request Outyear (FYDP) House mark
Fiscal YearEstimate TypeAmount ($M)
FY2025Actual727.9
FY2026Enacted1,044.0
FY2027Request1,662.7
FY2028Outyear1,781.6
FY2029Outyear1,826.3
FY2030Outyear1,348.2
FY2031Outyear1,106.5
Where it sits

Acquisition lifecycle

This program is funded in RDT&E Budget Activity 5 — System Development & Demonstration.

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 0605180N

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 59% overall, which can hide much larger swings below.

Project 3259

TACAMO Recap

$1,662.7MFY2027 request ▲ 59%
FY2025 actual$727.9M
FY2026 enacted$1,044.0M
FY2027 request$1,662.7M
Product DevelopmentSupportTest and EvaluationManagement Services

The E-6B Take Charge and Move Out (TACAMO) Recapitalization Program (E-130J) provides for air vehicle replacement and mission systems modernization to augment and eventually replace the aging E-6B aircraft for the TACAMO mission. The TACAMO mission provides an airborne capability for survivable, endurable and reliable airborne command, control and communications between the United States (U.S.) National Command Authority (NCA) and the U.S. strategic forces. This mission is critical in the deterrence and management of a nuclear conflict. A dedicated communications platform, TACAMO aircraft features the ability to communicate on virtually every radio frequency band from very low frequency (VLF) up through advanced extremely high frequency (AEHF) using a variety of modulations, encryptions and networks, minimizing the likelihood an emergency message being jammed by an enemy. The Engineering & Manufacturing Development (EMD) Hardware Development efforts for the design, architecture, and integration of a cyber-resilient communications systems to transform a modified C-130J-30 into E-130J through an EMD Contract awarded in FY 2025. Included in these efforts are Government and Contractor Systems Integration Laboratories, Contractor System Test Integration Laboratory, Government Furnished Property (National Security Agency approved encryption devices, Ultra High Frequency modems), High Frequency and the Advanced Extremely High Frequency solutions, Top Secret network development and building required infrastructure includes power generation systems, cooling, flight deck avionics, Electric Magnetic Pulse (EMP) hardening, cyber hardening, and structural modifications to support integration of E-130J mission system equipment. FY 2027 funding includes the purchase of three (3) C-130J-30 Government Furnished Equipment (GFE) System Demonstration Test Articles (SDTA) for mission system integration.

Accomplishments / planned programs (R-2A) — prior, current and budget year only
FY2025 actual$641.2M
FY2026 enacted$940.9M
FY2027 request$1,527.9M

FY 2027 funding will purchase three System Developmental test articles (SDTA) C-130J-30 Government Furnished Equipment (GFE). FY 2027 funding continues to provide support to the Engineering and Manufacturing Development (EMD) contract. The EMD Hardware Development efforts for the design, architecture, and integration of a cyber-resilient…

Read the FY2027 plan →
FY2025 actual$86.7M
FY2026 enacted$103.1M
FY2027 request$134.8M

FY 2027 continues support of the EMD contract. Funding continues for technical expertise and support for development efforts of mission systems, VLF system modernization, airframe modification design, mission systems integration, program management, engineering, test, training, and logistics tasks for E-130J technical and programmatic…

Read the FY2027 plan →
Congressional action

The request is contested

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

RequestPresident's Budget
$1,662.7M
House NDAA (HASC)HASC
$1,552.7M −$110.0M · −6.6%
Senate NDAA (SASC)SASC
$1,662.7M full · +$0
House Approps (HAC-D)HAC_D
$1,662.7M full · +$0
▲ $110.0M 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.

Northrop Grumman
$1,273.9M · 77%
Primary HW Development - EMD · CPIF
Lockheed Martin
$254.0M · 15%
Primary HW Development - Airframe · FPIF
Where FY2027 funding flowsShare$M
Industry primes98%1,634.2
Other / unspecified1.7%28.6
FY2027 request100%1,662.7
See Northrop Grumman's full federal contract ledger members
Program detail

Mission & acquisition strategy

The E-6B Take Charge and Move Out (TACAMO) Recapitalization Program (E-130J) provides for air vehicle replacement and mission systems modernization to augment and eventually replace the aging E-6B aircraft for the TACAMO mission. The TACAMO mission provides an airborne capability for survivable, endurable and reliable airborne command, control and communications between the United States (U.S.) National Command Authority (NCA) and the U.S. strategic forces. This mission is critical in the deterrence and management of a nuclear conflict.

The E-130J program acquisition strategy is designed to expedite the development, test, and deployment of this critical NC3 system of systems through the use of an existing aircraft (C-130J-30) and leveraging existing mission systems technology to minimize the need for new development. The E-130J program will competitively procure E-130J TACAMO-only NC3 aircraft (E-130J TACAMO Weapon Systems (TWS) aircraft), comprised of three Engineering Development Models (EDMs), up to three System Demonstration Test Articles (SDTAs), and up to 6 Low Rate Initial Production (LRIP) operational aircraft (Min 3/Max 6).

Project 3259 — TACAMO Recap
  • Product Development
  • Support
  • Test and Evaluation
  • Management Services
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Ask this program element

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 House do to this request, and what is still unresolved?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 Northrop Grumman 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 Navy RDT&E Budget Justification · Exhibits R-2 / R-3 · PE 0605180N (President's Budget PB2027) — and FY2027 NDAA committee marks, as tracked 2026-07-27.
Suggested citation
HitchAI, "Tacamo Modernization (PE 0605180N)," federal budget intelligence, PB2027 vintage. hitchintel.com/programs/0605180N
Machine access
Markdown twin /programs/0605180N.md · MCP mcp.hitchintel.combudget_get_program_element, budget_get_cong_marks