They knew that at any moment, German U-boats could descend upon them ... They analyzed high-resolution sonar data from every known wreck site in the region. They also studied historical records ...

Advanced sonar technology, improved convoy tactics, and air superiority made the oceans far more dangerous for German submarines. That year alone, the Germans lost 287 U-boats—more than in the ...

World War I was raging off the British Isles when the German submarine UC-18 surfaced to attack easy prey on the chilly morning of9, 1917. Its target, the Lady Olive, was about eight miles off the ...

The ship was transporting supplies and soldiers along the coast when it was torpedoed by German U-boat U-861 on the night ... multibeam and side-scanning sonar. Brazil was the only South American ...

By MercoPress Staff - In 2022, global mainstream news outlets highlighted the detection of a presumed German U-boat in Argentine ... wreck using state-of-the-art sonar beam technology, allowing ...

The SS Hartdale was sunk by a German U-boat in 1915 and its final resting place had long been unknown. Australian navy divers have suffered minor injuries from a sonar pulse by a Chinese navy vessel.