He was released and returned to Charleston, commanding the spar torpedo
launch Torch for an attack on the USS New Ironsides, and was appointed superintending captain of the South Carolina Importing and Exporting Company and moved to Scotland to commission six new steam runners.
Their weapon was a spar torpedo
, a ninety-pound charge at the end of a long pole jutting forward from the Hunley's bow.
Hunley became the first submarine to sink an opposing vessel in time of war when, on 17 February 1864, it detonated a spar torpedo
against the hull of USS Housatonic, which was on blockade duty off Charleston, South Carolina.
Tour stops include Alden Park, where a medley of monuments provides snapshots of American military history: There's a cannon from the War of 1812, spar torpedoes
from the Civil War, and a German Marder suicide submarine from 1944.