High Quality Content by WIKIPEDIA articles! USS Kanawha II (SP-130) -- later renamed USS Piqua (SP-130) -- was a yacht acquired by the U.S. Navy during World War I. She was placed into service as an escort for Allied convoys traveling across the dangerous North Atlantic Ocean. At the time, German u-boats were active in sinking Allied ships, and Kanawha II (later renamed Piqua) provided a valuable service watching out for u-boats and, in one instance, actually attacking one and driving it off. Post-war she was returned to her pre-war owner in July 1919.