# Project 2234 — Lightweight Hybrid Torpedo

**Program element:** 0604610N — Lightweight Torpedo Development  
**Project:** 2234  
**Component:** U.S. Navy  
**Appropriation:** 1319 — RDT&E, Navy  
**Budget Activity:** 5 — System Development & Demonstration  
**Vintage:** President's Budget PB2027  
**Canonical URL:** https://hitchintel.com/programs/0604610N/2234  
**Parent:** https://hitchintel.com/programs/0604610N

## Summary

Project 2234 — Lightweight Hybrid Torpedo requests $12.4M in FY2027, 12% of the $102.2M requested for program element 0604610N, up 144% on FY2026. 1 R-2A activity decomposes the request. OPTEVFOR is the largest named R-3 performer at $0.6M, 5.1% of the project's FY2027 R-3 total.

## Funding profile

| Fiscal Year | Estimate Type | Amount ($M) |
|---|---|---|
| FY2025 | Actual | 13.4 |
| FY2026 | Enacted | 5.1 |
| FY2027 | Request | 12.4 |
| FY2028 | Outyear | 13.9 |
| FY2029 | Outyear | 13.0 |
| FY2030 | Outyear | 13.1 |
| FY2031 | Outyear | 13.6 |

> Estimate types are not summed. This project is one leaf of PE 0604610N; the PE total is the sum of its projects, never added to them.

## What project 2234 buys

The program designs, integrates and tests the LWT MK 54. The LWT provides performance improvements in shallow water, counter-measure environments. The MK 54 MOD 1 program consists of two increments: (1) Increment 1 consisting of Advanced Processor Build (APB) 5 / Tech Insertion 1 (TI-1); and (2) Increment 2, consisting of APB-6 software upgrade. FY 2027 funding is for continued development of MK 54 MOD 1 Increment 2 APB 6 developmental builds, conducting in-water developmental test runs, and Weapons Analysis Facility (WAF) system testing. FY 2027 funding also for continued development of a Fleet Exercise Section (FES) instrumentation subsystem to be compatible with the MK 54 MOD 1 obsolescence upgraded hardware being produced under BLI 3215. FY 2027 also funds emergent and stop gap capability needs (Hammerhead and TDHK).

**R-3 lines of work:** Product Development; Support; Test and Evaluation; Management Services.

## Named R-3 performers

| Performer | $M | Share of this project's FY2027 R-3 total |
|---|---|---|
| OPTEVFOR | 0.6 | 5.1% |

> Budget-justification contract funding, not obligations. Shares need not reach 100% — unnamed and government work is in the denominator.

## Activities (R-2A) — 1

| Activity | FY2025 | FY2026 | FY2027 | Move | Page |
|---|---|---|---|---|---|
| MK 54 Pre-Planned Product Improvement | 13.4 | 5.1 | 12.4 | +144% | [a0](https://hitchintel.com/programs/0604610N/2234/a0) |

> Activities carry the prior, current and budget year only — no five-year plan. In the request year they partition this project exactly; in earlier years they can under-cover it.

### MK 54 Pre-Planned Product Improvement

-Continue APB 6 (INC 2) software development and Engineering Testing. -Continue APB 6 (Hammerhead) software development and testing in support of field early operational capability (EOC). -Continue platform integration of APB 6 (INC 2) with launch platforms (P-8A, MH-60R, CRUDES). -Continue addressing emergent and stop gap capability…

Full year-by-year narrative: https://hitchintel.com/programs/0604610N/2234/a0

## What is NOT on this page

Congressional marks, the R-2 mission description and acquisition strategy, the industry vs government split of the whole request, and related program elements are recorded at **program-element** grain — an NDAA mark lands on a PE, never on a project. They are at https://hitchintel.com/programs/0604610N.

## Source & machine access

- **Source:** FY2027 Department of the Navy RDT&E Budget Justification, Exhibits R-2/R-2A/R-3, PE 0604610N project 2234 (PB PB2027).
- **MCP:** `mcp.hitchintel.com` — `budget_get_program_element(pe="0604610N")`.

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