DefenceTalkFive miles off the southern coast of Oahu, Hawaii, a three-person submersible was lifted off the back of a boat by a mechanical crane. The underwater vehicle floated on the surface of the ocean for a few moments as the crew in the chase boat unhooked the submersible as it prepared for its 550-meter journey […]https://www.defencetalk.com/army-samples-ocean-floor-for-underwater-munitions-project-46817/