Spain’s S-81 submarine Isaac Peral sinks decommissioned patrol vessel with a single torpedo

Spain's Isaac Peral submarine, S-81, sank the decommissioned patrol vessel Infanta Elena with a single torpedo during the Atlantic SINKEX-26 exercise. The live firing tested the first S-80-series submarine's weapons and crew readiness within a coordinated operation involving surface ships, combat aircraft and maritime surveillance assets. Participants included the frigates Cristóbal Colón and Navarra, support vessel Carnota, patrol ship Relámpago, three AV-8B Harriers, a helicopter and a ScanEagle UAV. The Spanish defence ministry described the event as a fleet-integration demonstration, while Infanta Elena underwent removal of fuel, oils and other pollutants before the controlled sinking.