# Maritime Systems — Program Element 1160483BB

**Program element:** 1160483BB  
**Component:** Defense-Wide  
**Appropriation:** 0400 — RDT&E, Defense-Wide  
**Budget Activity:** 7 — Operational System Development  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/1160483BB

## Summary

Defense-Wide funding ramps 179% to a $351.7M request in FY2027 — the program's peak, before stepping down 58% across the five-year plan. In the FY2027 defense authorization, the House funded it in full; the Senate added 3.5% (to $364.0M); House appropriators funded it in full. Apogee leads the industry work.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 194.8 |
| FY2026 | Enacted | 126.0 |
| FY2027 | Request | 351.7 |
| FY2028 | Outyear | 330.4 |
| FY2029 | Outyear | 218.6 |
| FY2030 | Outyear | 203.1 |
| FY2031 | Outyear | 147.5 |

> 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 | 351.7 | — |
| House NDAA (HASC) | 351.7 | +0.0 |
| Senate NDAA (SASC) | 364.0 | +12.3 |
| House Approps (HAC-D) | 351.7 | +0.0 |

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

## Projects (2)

| Project | Title | FY2025 actual | FY2026 enacted | FY2027 request | Move |
|---|---|---|---|---|---|
| S0417 | Underwater Systems | 161.7 | 118.5 | 287.0 | +142% |
| S1684 | Surface Craft | 33.1 | 7.5 | 64.8 | +763% |

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

### Project S0417 — Underwater Systems

This project provides for the Engineering and Manufacturing Development (EMD) of combat underwater submersibles, Special Operations Forces (SOF) combat diving systems, underwater support systems, and underwater equipment. This project also provides for pre-acquisition activities (materiel solutions analysis, advanced component development and prototypes) to respond to emerging requirements. These submersibles, equipment, and diving systems are used by SOF in the conduct of infiltration/extraction, personnel/material recovery, hydrographic/inland reconnaissance, beach obstacle clearance, underwater ship attack, and other missions. The capabilities of the submersible systems, diving systems, and unique equipment provides small, highly trained forces the ability to successfully engage with increased lethality while maximizing survivability of the SOF personnel and equipment.

**Named R-3 performers** (share of this project's FY2027 R-3 total, so they need not reach 100%)**:** Apogee (0.8, 0.3%).

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Sea, Air, and Land (SEAL) Delivery Vehicle (SDV), Program Number 848 | 1.1 | 0.0 | 5.0 |
| Dry Deck Shelter (DDS) Modernization, Program Number 817 | 6.0 | 0.0 | 5.0 |
| SOF Combat Diving (CBDIV) | 11.3 | 0.0 | 12.1 |
| Undersea Craft Mission Equipment (UCME) | 23.5 | 0.0 | 13.2 |
| Small Unmanned Surface Vehicle (SUSV), Program Number V36 | 1.9 | 0.0 | 2.0 |
| Small Unmanned Underwater Vehicle (SUUV), Program Number 799 | 1.4 | 0.0 | 1.4 |
| Classified Programs | 116.6 | 118.5 | 248.3 |

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

### Project S1684 — Surface Craft

This project provides for the Engineering and Manufacturing Development (EMD) of combatant craft, combatant craft mission equipment, Pre-Planned Product Improvement (P3I), and technology insertion to meet the unique requirements of Special Operations Forces (SOF). This project also provides for pre-acquisition activities (materiel solutions analysis, advanced component development and prototypes) to quickly respond to new requirements for maritime craft and subsystems, leading to increased lethality and survivability of personnel and equipment. The craft capabilities and unique equipment provide small, highly trained forces the ability to successfully conduct operations associated with SOF maritime missions. The FY 2026 request for Maritime Systems includes $120.745 million of discretionary and $180.813 million of mandatory (reconciliation) funding for a total of $301.288 million.

| Activity (R-2A) | FY2025 | FY2026 | FY2027 |
|---|---|---|---|
| Combatant Craft Medium (CCM), Program Number 818 | 18.2 | 0.0 | 43.5 |
| Combatant Craft Heavy (CCH), Program Number 819 | 1.0 | 0.0 | 1.0 |
| Combatant Craft Mission Equipment (CCME) | 3.3 | 0.0 | 17.8 |
| Combatant Craft Assault (CCA), Program Number 820 | 1.6 | 0.0 | 1.8 |
| Maritime Precision Engagement (MPE), Program Number 671 | 2.1 | 0.0 | 0.0 |
| Special Operations Craft Riverine (SOCR), Program Number 821 | 0.6 | 0.0 | 0.6 |
| Combatant Craft Forward Looking Infrared (CCFLIR) Program No. 822 | 0.0 | 0.0 | 0.0 |
| Classified Program | 6.3 | 0.0 | 0.0 |

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

## Where the FY2027 request goes

| Category | Share | $M |
|---|---|---|
| Industry primes | 0.2% | 0.8 |
| Government labs & warfare centers | 0.9% | 3.1 |
| Other / unspecified | 99% | 347.8 |

**Top named industry performers:** .

> R-3 exhibit contract funding, not USAspending obligations.

## Mission & acquisition strategy

This Program Element provides for the Engineering and Manufacturing Development (EMD) of Special Operations Forces (SOF) Surface and Undersea Mobility platforms. It also provides for pre-acquisition activities to quickly respond to new requirements for SOF surface and undersea mobility, looking at multiple alternatives to include cross-platform technical solutions, service-common solutions, Commercial-Off-The-Shelf (COTS) technologies, and new development efforts. S4017: The Underwater Systems project provides for the EMD of combat submersibles, SOF combat diving systems, underwater support systems, and underwater equipment.

• The SDV MK 11/SWCS initially used full and open competition with a down select to a single contractor to award prototype development and low-rate initial production. Leveraging sole source Justification and Approval (J&A) production contracts for delivery of production articles MK1106 - MK1110. The full spectrum of contracting activities is being employed for P3I upgrades, using existing contracts, government agencies, and new contracts as appropriate. The SDV MK 11 is a Major Capability Acquisition (MCA) (ACAT III) designated program. • The DDS is currently in sustainment through a maintenance and service contract.

## Related program elements

- [0603713N — Ocean Engineering Tech Dev](https://hitchintel.com/programs/0603713N) (Navy)
- [0204313N — Ship-Towed Array Surveillance Systems](https://hitchintel.com/programs/0204313N) (Navy)
- [0401221F — KC-46A Tanker Squadrons](https://hitchintel.com/programs/0401221F) (Air Force)
- [1203955SF — Space Access, Mobility & Logistics (SAML)](https://hitchintel.com/programs/1203955SF) (Space Force)

## Source & machine access

- **Source:** FY2027 Office of the Secretary of Defense RDT&E Budget Justification, Exhibits R-2/R-3, PE 1160483BB (PB PB2027); FY2027 NDAA committee marks (as of 2026-07-27).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="1160483BB")`.

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