Role & capabilities
- Maritime surveillance
- Modular payload carriage
- Primary domain
- Sea surface
- System type
- Uncrewed surface vessel
- Developer / manufacturer
- Textron Systems / Brunswick
- Origin / production countries
- United States
- Other names
- No additional names recorded
- Variants / configurations
- TSUNAMI 21; TSUNAMI 25; TSUNAMI 33; TSUNAMI 38; TSUNAMI 42
- Operators / programme customers
- United States Navy — research sales and DIU-backed experimentation
Evidence & current status
Procurement, trials and service are distinguished; family figures are not transferable between variants.
TSUNAMI combines commercial boat production with Textron's autonomy and integration experience. The product range includes complete vessels and separate conversion kits; a kit is not itself a completed naval boat. Current vessel variants span several sizes, allowing different balances of payload, handling and range.
Textron announced an April 2026 Defense Innovation Unit award to produce and deliver several craft for US Navy Fourth Fleet and SOUTHCOM experimentation and associated operations. Earlier sales to naval research organisations are also recorded in the manufacturer's news register. These milestones support procurement status, while payload demonstrations and the completed delivery of each contracted boat remain distinct questions.
The specification rows use the named TSUNAMI 21 baseline from the current product table. Larger TSUNAMI 25, 33, 38 and 42 vessels are listed as variants, without giving them the small boat's dimensions or range. Published brochure and web-table payload terminology differs in places, so exact delivered weight allowance requires a customer configuration sheet. The relationship to CUSV concerns autonomy heritage; it does not make TSUNAMI the same hull or mission package.
Sourced specifications
Figures apply to the named configuration. Maximum values are not guaranteed operating performance.
| Specification | Reported value | Context & source |
|---|---|---|
| Configuration | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
| Hull / propulsion | TSUNAMI 21: single 250 or 300 hp engine option | Published configuration baseline; loading and conditions affect performance. Source |
| Dimensions | TSUNAMI 21: 21 ft 4 in long; 8 ft 6 in beam | Published configuration baseline; loading and conditions affect performance. Source |
| Displacement / mass | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
| Payload | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
| Endurance | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
| Range | TSUNAMI 21: 300 nautical miles | Published configuration baseline; loading and conditions affect performance. Source |
| Speed | TSUNAMI 21: over 50 knots | Published configuration baseline; loading and conditions affect performance. Source |
| Sea state / environment | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
| Sensors | EO/IR camera and maritime radar in the brochure baseline | Published configuration baseline; loading and conditions affect performance. Source |
| Communications / control | Line-of-sight and beyond-line-of-sight communications | Published configuration baseline; loading and conditions affect performance. Source |
| Launch / deployment | Not established in the reviewed public sources. | Public evidence gap. No estimate or neighbouring variant value has been substituted. Source |
Documented milestones
DIU procurement announced
Textron announced a multiple-vessel award for Fourth Fleet and SOUTHCOM activity.
Read the announcement
Publication history
- — Published reference update.
Suggest a correction to this entry
Follow the evidence
Source types identify who makes the claim. Programme milestones and supplier statements should be read in context.
- TSUNAMI current vessel/kit catalogue (opens in a new tab)Manufacturer
- April 2026 DIU contract (opens in a new tab)Manufacturer
- TSUNAMI 2026 brochure (opens in a new tab)Manufacturer