Sea Baby
Ukraine's SBU surface-drone family, with a substantially enlarged 2025 configuration documented by its operator.
- Country / region
- Ukraine
- Programme status
- In service / use documented
- Sources reviewed
- 20 Sept 2026
- Primary domain
- Sea surface
- System type
- Uncrewed surface vessel
- Developer / manufacturer
- Security Service of Ukraine development programme
- Origin / production countries
- Ukraine
- Other names
- Морський малюк; SeaBaby
- Variants / configurations
- Earlier surface Sea Baby configurations; 2025 enlarged surface generation
- Operators / programme customers
- Ukraine — Security Service / SBU
Evidence & current status
Operational status and performance are attributed to a wartime operator. The source does not support a complete independently verified specification or a common configuration for all Sea Baby craft.
Role & capabilities
- Remote maritime operations
- Modular mission equipment carriage
Specifications in context
- Configuration
- Uncrewed surface-vessel family with multiple mission fits
Operator presentation.
Source ↗ - Hull / propulsion
- 2025 generation described as having more powerful engines
No engine model or rating established.
Source ↗ - Dimensions
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Displacement / mass
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Payload
- Up to 2,000 kg for the 2025 generation
Operator claim; not a figure for every older Sea Baby.
Source ↗ - Endurance
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Range
- More than 1,500 km for the 2025 generation
Operator claim; conditions not disclosed.
Source ↗ - Speed
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Sea state / environment
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Sensors
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Communications / control
- Uncrewed operation; updated navigation system reported
Technical architecture not fully disclosed.
Source ↗ - Launch / deployment
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗