REMUS 300 / Lionfish platform
Portable modular AUV underpinning the US Navy’s Lionfish programme, with battery-dependent size, endurance and range.
- Country / region
- United States
- Programme status
- In service / use documented
- Sources reviewed
- 20 Sept 2026
- Primary domain
- Underwater
- System type
- Autonomous underwater vehicle
- Developer / manufacturer
- HII
- Origin / production countries
- United States
- Other names
- Lionfish platform
- Variants / configurations
- 1.5 kWh configuration; 3.0 kWh standard configuration; 4.5 kWh extended-energy configuration; Lionfish: US Navy programme-specific implementation
- Operators / programme customers
- Royal New Zealand Navy — delivery reported in 2022; Royal Navy — procurement documented; US Navy — Lionfish programme
Evidence & current status
Public specifications are attributed to the cited sources. Advertised limits are not assumed to occur simultaneously.
Role & capabilities
- Seabed mapping
- Search and recovery
- Modular survey payloads
Specifications in context
- Configuration
- Untethered modular small AUV
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Hull / propulsion
- Battery-electric propeller propulsion
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Dimensions
- Standard 3.0 kWh: length 2.39 m, diameter 19 cm
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Displacement / mass
- Standard 3.0 kWh: 58.5 kg
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Payload
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗ - Endurance
- Standard 20 hours; 10–30 hours across listed energy options
At 3 kt with standard sensors active; larger batteries change dimensions and mass.
Source ↗ - Range
- Standard 110 km; 55–165 km across energy options
At 3 kt with standard sensors active; not a communications radius.
Source ↗ - Speed
- Standard table 0–4 kt; current web page says up to 5 kt
Published baselines differ; configuration applicability is unresolved.
Source ↗ - Operating depth
- 305 m
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Sensors
- Side-scan sonar and environmental sensors; optional imaging and synthetic-aperture sonar
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Communications / control
- Acoustic link; Wi-Fi and optional satellite communications when accessible
Published specification for the cited configuration; payload, environment and speed affect performance.
Source ↗ - Launch / deployment
- Not established in the reviewed public sources.
Public data gap; no estimate or neighbouring variant value substituted.
Source ↗