EntityQ16765633· pop 6· linked from 58 articlessonar decoySign in to savedevice to distract sonar operatorsConnectionssonarEntityweaponEntityInternational Standard Book NumberEntitysubmarineEntityU-boatEntitycalcium hydrideEntityAkula-class submarineEntityType XXI submarineEntityDelta-class submarineEntityAN/SLQ-25 NixieEntitydecoyEntityacoustic torpedoEntitybubble curtainEntityBoldEntityCategoriesSonar decoysU-boats