Printed from https://fiscalreceipts.com/program/0604031N/ — data as of July 28, 2026. Every figure is citation-backed; see the page online for per-number provenance.
Large Unmanned Undersea Vehicles
Budget Figures
FY2026 award data is a partial year — USASpending awards are reported on a rolling basis and the fiscal year does not close until September 30. why partial FY2026 data? →
- FY24
- $40.5M
- FY25
- $6.87M
- FY26
- $185.0M
● actuals (line) · ○ enacted · ◇ request — gaps are editions the program is absent from, never interpolated.
| Series | FY17 | FY18 | FY19 | FY20 | FY21 | FY22 | FY23 | FY24 | FY25 | FY26 |
|---|---|---|---|---|---|---|---|---|---|---|
| Actuals | $0 | $23.9M | $57.9M | $66.7M | $60.4M | $27.5M | – | $40.5M | ||
| Enacted | – | $0 | $60.3M | $68.3M | $62.2M | $65.7M | $0 | $6.90M | $6.87M | |
| Request | – | – | $92.6M | $68.3M | $78.1M | $88.1M | $0 | $6.90M | $6.87M | $185.0M |
blank = series not published for this year; – = absent from that edition.
Asked vs spent: the PB2022 book requested $88.1M for FY2022; the PB2024 book reports $27.5M actually spent — $60.6M below the request.
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 — Unmanned Underwater Vehicle
The Snakehead Program was intended to be Navy's largest Submarine-launched UUV with a modular design, high accuracy mission sensors and communications links, as well as modular payload capabilities with well-defined interfaces for the purpose of implementing cost-effective upgrades in future increments to leverage advances in technology. The Snakehead LDUUV program was a CNO/ASN(RDA) approved Accelerated Acquisition that had a phased approach to grow capabilities at a manageable level of risk. As part of Phase I, a Government developed prototype was fabricated, subsystem-level testing began in FY 2021, and vehicle in-water testing began in FY 2022. Phase 2 efforts were stopped in FY 2022. The Snakehead Program is cancelled, starting in FY 2026. The Dragonfish LUUV is a rapid and iterative prototyping project that addresses a priority Fleet requirement for a below-water Intelligence, Surveillance, and Reconnaissance (ISR) task with classification of targets of interest and activation of a purpose-built payload. The system consists of a vehicle, a payload, and a support system. The Dragonfish LUUV is a follow-on effort to a Defense Innovation Unit (DIU) Commercial Solutions Opening (CSO) that assessed commercially available LUUVs. The project is rapidly prototyping with V1 vehicles and conducting in-water, system-level testing. This will inform prototyping for V2 vehicles, which are intended to be Minimal Viable Products (MVPs).
Mission — Congressional Adds
(U) Congressional Add for Commercially Available Long Endurance UUV - acquire, prototype, and experiment with commercially available Large Diameter Unmanned Undersea Vehicle (LDUUV) test platforms, ancillary equipment, and support services that can rapidly integrate a broad range of payloads and sensors to serve as test beds for organizations and expedite the delivery of these capabilities to the fleet.
Mission — Large Unmanned Undersea Vehicles
Large Unmanned Undersea Vehicles (UUVs) are part of the Navy's family of UUVs, in support of maintaining the Navy's undersea superiority. They are designed with mission sensors, communications, power, navigation, autonomy and target recognition, and payloads. Large UUVs provide the Navy with significantly increased endurance and payload capacity over small and medium class UUVs. They are deployed from vessels of opportunity and piers. The Snakehead Program was intended to be Navy's largest Submarine-launched UUV with a modular design, high accuracy mission sensors and communications links, as well as modular payload capabilities with well-defined interfaces for the purpose of implementing cost-effective upgrades in future increments to leverage advances in technology. The Snakehead LDUUV program was a CNO/ASN(RDA) approved Accelerated Acquisition that had a phased approach to grow capabilities at a manageable level of risk. As part of Phase I, a Government developed prototype was fabricated, subsystem-level testing began in FY 2021, and vehicle in-water testing began in FY 2022. Phase 2 efforts were stopped in FY 2022. The Snakehead Program is cancelled, starting in FY 2026. The Dragonfish LUUV is a rapid and iterative prototyping project that addresses a priority Fleet requirement for a below-water Intelligence, Surveillance, and Reconnaissance (ISR) task with classification of targets of interest and activation of a purpose-built payload. The system consists of a vehicle, a payload, and a support system. The Dragonfish LUUV is a follow-on effort to a Defense Innovation Unit (DIU) Commercial Solutions Opening (CSO) that assessed commercially available LUUVs. The project is rapidly prototyping with V1 vehicles and conducting in-water, system-level testing. This will inform prototyping for V2 vehicles, which are intended to be Minimal Viable Products (MVPs).
Justification
No accomplishments or planned-program narratives in this line's J-book detail — some exhibits carry figures without per-project prose.
Budget Line Items(workbook-cited)
Exhibit R-1
| Account | Org | Type | Amount |
|---|---|---|---|
| Research, Development, Test and Evaluation, Navy | N | FY24 Actuals | $40.5M |
| Research, Development, Test and Evaluation, Navy | N | FY25 Enacted | $6.87M |
| Research, Development, Test and Evaluation, Navy | N | FY25 Total | $6.87M |
| Research, Development, Test and Evaluation, Navy | N | FY26 Reconciliation | $185.0M |
| Research, Development, Test and Evaluation, Navy | N | FY26 Total | $185.0M |
Budget Details(R-2/P-40 facts)
| Project | All Prior Years | FY24 Actuals | FY25 Total | FY26 Base | FY26 Request |
|---|---|---|---|---|---|
| 9999: Congressional Adds | $0 | $33.8M | $0 | $0 | $0 |
| 2094: Unmanned Underwater Vehicle | $236.2M | $6.72M | $6.87M | $0 | $0 |
| Program Element | $236.2M | $40.5M | $6.87M | $0 | $0 |
No follow-the-dollar view — this program's awards haven't been crosswalked at high confidence (flows cover 17 of 1741 programs). why coverage is partial? →
Awards
No awards are linked to this program element at high confidence — the budget→award crosswalk only asserts links it can defend, and this line has none yet.
Lobbying Mentions
No Senate LDA lobbying filing in the tracked data mentions this program element by code or alias.
No research dossier for this program — dossiers cover 50 of 1741 programs, the largest fully J-book-detailed lines by FY2026 requested dollars. why no dossier here? →