Role & capabilities
- Multi-day underwater survey
- Modular payload carriage
- Environmental and seabed sensing
- Primary domain
- Underwater
- System type
- Autonomous underwater vehicle
- Developer / manufacturer
- HII
- Origin / production countries
- United States
- Other names
- No additional names recorded
- Variants / configurations
- One-, two- and three-battery base configurations; Payload-specific configurations
- Operators / programme customers
- Unnamed Indo-Pacific customer — sale reported by HII
Evidence & current status
Procurement and integration are documented by the supplier. The maximum duration and range require their stated energy configuration and cannot be combined with minimum mass.
REMUS 620 is HII’s medium-class autonomous underwater vehicle, designed around interchangeable batteries and wet or dry payload modules. It supports hydrographic survey, mine-countermeasures sensing and other maritime information-gathering tasks. Its larger hull and energy provision distinguish it from the portable REMUS 300.
HII’s current sheet shows why a single headline endurance is insufficient. The one-battery base configuration is substantially shorter and lighter than the three-battery version associated with the maximum duration. A published sonar-equipped example has a different length, mass and endurance again. The catalogue uses the one-battery base as its dimensional reference and qualifies the family maximum separately.
The company records an Indo-Pacific customer sale in March 2024 and describes later submarine integration milestones. Those events establish procurement and testing, not a complete operational fleet inventory. Publicly demonstrated integration should also not be extended to every potential deployment platform listed in marketing material. REMUS 620 is kept separate from the preceding REMUS 600 and programme-specific military variants.
Sourced specifications
Figures apply to the named configuration. Maximum values are not guaranteed operating performance.
| Specification | Reported value | Context & source |
|---|---|---|
| Configuration | Modular medium-class untethered 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 | One-battery base: approximately 2.7 m long; 32.4 cm diameter | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Displacement / mass | One-battery base: approximately 188 kg | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Payload | Configurable wet and dry modules; no universal spare payload mass stated | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Endurance | Base configurations: 42–110 hours according to battery count | Sonar-equipped examples have lower endurance; maximum is not valid for every payload. Source |
| Range | Base configurations: 204–509 km according to battery count | Published travel range, not communications reach; payload-equipped examples differ. Source |
| Speed | 2–8 kt, dependent on configuration and environment | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Operating depth | 600 m | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Sensors | Environmental sensors; configurable sonar and other payloads | Published specification for the cited configuration; payload, environment and speed affect performance. Source |
| Communications / control | Acoustic, satellite and Wi-Fi links; onboard autonomous mission control | 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 |
Publication history
- — Added sourced land and maritime coverage with domain-specific evidence and limitations.
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.
