Verified vehicle record · Unknown / not clearly published
Marlin Mk3
A deepwater survey and inspection AUV announced with a modular mission-package architecture and hybrid AUV/ROV propulsion modes.
Deepwater inspection AUV4,000 mpublished maximum depth
Technical specifications
| Manufacturer | Lockheed Martin |
|---|---|
| Status | Unknown / not clearly published |
| Vehicle class | Deepwater inspection AUV |
| Person-portable | No |
| Maximum operating depth | 4,000 m |
| Endurance | Up to 24 hours |
| Range | >100 km |
| Length | Not published |
| Diameter | Not published |
| Beam | Not published |
| Height | Not published |
| Weight | Not published |
| Speed | Not published |
| Power system | 44 kWh battery |
| Navigation | Not published |
| Communications | Not published |
| Sensors & payloads | Multibeam, side-scan, SAS, sub-bottom, video, still camera and laser options |
“Not published” means no value was found in the cited primary source selected for this record. It is not an estimate.
Primary applications
Editorial / uncertainty note
The primary announcement documents capability and intended manufacture but does not clearly establish current 2026 commercial availability.