The US military's massive unmanned 'Manta Ray' submarine cleared its first sea test
A US military submarine that looks like a giant metal manta ray and is currently under development passed its first major ...
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The Manta Ray: How America's Futuristic Underwater Drone will Change Warfare.
Explore the world’s oceans like never before with the Manta Ray, DARPA's cutting-edge underwater drone. Discover its innovative design, development, and potential to revolutionize naval warfare. Dive ...