Ghost Fleet Overlord Ranger / Mariner
Large fast-supply-vessel-based USV demonstrators with documented US Navy deployment, distinct from Sea Hunter and Seahawk.
- Country / region
- United States
- Programme status
- In service / use documented
- Sources reviewed
- 21 Sept 2026
- Primary domain
- Sea surface
- System type
- Uncrewed surface vessel
- Developer / manufacturer
- Leidos / Gibbs & Cox programme integration
- Origin / production countries
- United States
- Other names
- OUSV Ranger; OUSV Mariner
- Variants / configurations
- Ranger; Mariner
- Operators / programme customers
- United States Navy
Evidence & current status
Procurement, trials and service are distinguished; family figures are not transferable between variants.
Role & capabilities
- Naval autonomy experimentation
- Long-duration maritime surveillance
Specifications in context
- Configuration
- Fast-supply-vessel-derived, supervised-autonomy demonstrators
Published configuration baseline; loading and conditions affect performance.
Source - Hull / propulsion
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Dimensions
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
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
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Speed
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
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
- Not established in the reviewed public sources.
Public evidence gap. No estimate or neighbouring variant value has been substituted.
Source - Communications / control
- Leidos autonomy integration; vessel-level human supervision and support remain part of the programme
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