# Science & Technology for Nuclear Re-entry Systems — Program Element 0603273N

**Program element:** 0603273N  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 3 — Advanced Technology Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0603273N

## Summary

U.S. Navy requests $114.8M in FY2027 (down from a FY2026 peak), sustained across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate funded it in full; House appropriators added 13% (to $129.8M).

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 115.1 |
| FY2026 | Enacted | 121.6 |
| FY2027 | Request | 114.8 |
| FY2028 | Outyear | 116.0 |
| FY2029 | Outyear | 118.7 |
| FY2030 | Outyear | 119.3 |
| FY2031 | Outyear | 121.5 |

> Estimate types are not summed — the profile mixes actuals, enacted law, the request, and outyear projections.

## Congressional marks (FY2027)

| Stage | Marked ($M) | Change ($M) |
|---|---|---|
| Request | 114.8 | — |
| House NDAA (HASC) | 114.8 | +0.0 |
| Senate NDAA (SASC) | 114.8 | +0.0 |
| House Approps (HAC-D) | 129.8 | +15.0 |

> FY2027 NDAA authorization marks, as of 2026-07-27. Not appropriations or final law.

## Projects (1)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| 3095 | Nuclear Delivery Systems | 115.1 | 121.6 | 114.8 | −6% |

> Projects are the summable leaves: the program element total is their sum, never added to it.

### Project 3095 — Nuclear Delivery Systems

This project will fund advanced development of nuclear delivery technologies, subsystems, and components for reentry systems in alignment with the Office of the Under Secretary of War for Research and Engineering (USW(R&E)) guidance on relevant technology categories: Aeroshell, Fuzing, Guidance, Navigation, and Control (GNC), Advanced Capability, and Testing. These activities will reduce the operational, programmatic and technological risk facing modernization of Navy reentry systems. To achieve its objectives, the NDS S&T program will undertake several initiatives, including: * Developing and maturing advanced technologies through a series of experiments designated as Griffin and Peregrine. The experiments will include three Government Reference Designs (GRD) experimental reentry bodies, designated Griffin 2.0, Griffin 2.1, and Peregrine 2.0. These experimental reentry bodies will have increasing capability and will be used to evaluate and demonstrate new technologies and concepts for nuclear delivery systems. * Developing nuclear delivery system technologies through the use of a series of ground and flight tests of components and subsystems. These test will be informed by modeling and simulation and will utilize existing and new capabilities that enable a better understanding of how systems will perform in a realistic and operationally relevant environment. * Partnering with other organizations, as appropriate, to leverage their investments in relevant technology maturation that aligns with the USW(R&E) technology areas for NDS S&T. This may include investments in advanced materials, and other technologies that can be used to improve the performance and survivability of nuclear delivery systems. *Allocating resources to support GRD development and demonstration over the period of performance will ensure that the NDS S&T program has the necessary resources and funding to achieve its objectives and support the development of new nuclear delivery systems. Overall, the NDS S&T program is a critical component of the DoW's efforts to modernize its nuclear delivery systems and ensure the continued viability of the nuclear deterrent.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Aeroshell | 17.9 | 27.1 | 22.1 |
| Fuzing | 15.9 | 13.5 | 17.3 |
| Guidance Navigation and Control (GNC) | 66.3 | 72.5 | 64.1 |
| Testing | 12.9 | 6.4 | 9.2 |
| Advanced Capability | 2.0 | 2.1 | 2.1 |

> R-2A activities carry the prior, current and budget year only — no five-year plan. Coverage is partial, so count them, never total them.

## Mission & acquisition strategy

This Program Element supports Department of War (DoW) priorities for enduring science and technology (S&T) for nuclear re-entry systems. For several decades, foundational nuclear R&D investments outside of major acquisition programs have been significantly reduced. This historical trend contrasts with the DoW's recent recognition of the need to invest in advanced nuclear-related components and technologies in support of the nuclear enterprise, nuclear deterrence operations, and integrated deterrence operations.

## Related program elements

- [0602675D8Z — Social Sciences for Environmental Security](https://hitchintel.com/programs/0602675D8Z) (Defense-Wide)
- [0303140A — Information Systems Security Program](https://hitchintel.com/programs/0303140A) (Army)
- [0603122D8Z — Combating Terrorism Technology Support](https://hitchintel.com/programs/0603122D8Z) (Defense-Wide)
- [0305022F — ISR Modernization & Automation Dvmt (IMAD)](https://hitchintel.com/programs/0305022F) (Air Force)

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-3, PE 0603273N (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0603273N")`.

*HitchAI is an independent intelligence service, not affiliated with the U.S. Department of Defense. Budget figures are requests/estimates, not obligations.*