The mechanical Hedgehog proved itself to be a deadly predator and killer of Axis submarines. When one thinks of antisubmarine ...
The U.S. Navy ran depth-charge tests against an operational submarine that, for most of the test, was moored underwater without a crew. Finding that 300 pounds of TNT was not very effective ...
Higher carbon-dioxide levels in the atmosphere change all these things. The gas’s mere presence acidifies seawater. Its ...
The Navy ordered the manufacture of its own PV-1 Venturas, which had a range of 1,360 miles and could carry 3,000 pounds of bombs or anti-submarine depth charges. The PV-1 bomber, which also bore ...