The coolest thing for me about the MR is that it can anchor to the floor bed, release a tethered device and recharge it power unit.
The Manta Ray is an uncrewed underwater vehicle (UUV) developed by Northrop Grumman for the US Navy:
https://www.livescience.com/technology/engineering/darpas-autonomous-manta-ray-drone-can-glide-through-ocean-depths-undetected#:~:text=The prototype, designed and built by the,without needing on-board human support and maintenance.
The Manta Ray is an uncrewed underwater vehicle (UUV) developed by Northrop Grumman for the US Navy:
https://www.livescience.com/technology/engineering/darpas-autonomous-manta-ray-drone-can-glide-through-ocean-depths-undetected#:~:text=The prototype, designed and built by the,without needing on-board human support and maintenance.
- Features
The Manta Ray is designed for long-range, long-duration missions in the ocean. It can:- Operate autonomously without human support or maintenance
- Hibernate on the seafloor for extended periods without refueling
- Support a variety of missions
- Operate autonomously without human support or maintenance
- Size
The Manta Ray has a wingspan of around 45 feet and an overall length of 33 feet.
- Development
The Manta Ray was developed as part of a Defense Advanced Research Projects Agency (DARPA) program to:- Advance key technologies for future UUV designs
- Create a large underwater drone that can operate independently of manned vessels and ports
- Testing
The Manta Ray passed its first at-sea tests off the coast of California, with no leaks, ground faults, or other build issues.
- Development
