The British Sonar Ghost That Made German U-Boat Crews Crash Dive Directly Into Bedrock

The British ghost that haunted the deep. A device smaller than a kitchen colander, running on a single twelve-volt battery, convinced the finest sonar-trained crews in the Kriegsmarine that a destroyer was bearing down on them at full speed — and sent them crash diving directly into bedrock. No guns. No explosives. Just sound, borrowed from the enemy's own worst fear. This is the story of the Foxer, the acoustic phantom that helped turn the Battle of the Atlantic. #WW2, #BattleOfTheAtlantic, #UBoat, #BritishHistory, #SecretWeapons, #NavalWarfare, #WorldWarTwo, #Kriegsmarine,