The second USS Conestoga (SP-1128/AT-54) was an ocean-going tug in the United States Navy. Commissioned in 1917, it disappeared in the Pacific Ocean in 1921. The fate of the vessel was a mystery until its wreck was positively identified in 2016.
USS Alcedo (SP-166) was a yacht in the United States Navy. She was the first American vessel lost in World War I.
USS Isabel (SP-521), later PY-10, was a yacht in commission in the United States Navy as a destroyer from 1917 to 1920 and as a patrol yacht from 1921 to 1946.
USS Joyce (DE-317) was originally commissioned as a US Coast Guard Edsall-class destroyer escort built for the U.S. Navy during World War II. She served in the Atlantic Ocean and the Pacific Ocean and provided destroyer escort protection against submarine and air attack for Navy vessels and convoys. During its World War II service, on two different engagements with enemy submarines, the Joyce rescued survivors of the tanker SS Pan- Pennsylvania and its sister ship USS Leopold. Joyce received one battle star for its service during World War II.
The first USS Cythera (SP-575/PY-26) was a United States Navy patrol vessel that saw service in the Atlantic Ocean during both World War I and World War II.
USS Oceanographer (AGS-3) was a survey ship of the United States Navy during World War II that produced charts chiefly of passages in the Solomon Islands area of the Pacific Ocean. Upon transfer to the Navy, she had initially briefly been named and classed as gunboat USS Natchez (PG-85). Before her World War II Navy service, she had been USC&GS Oceanographer (OSS-26), a survey ship with the U.S. Coast and Geodetic Survey from 1930.
An armed yacht was a yacht that was armed with weapons and was typically in the service of a navy. The word "yacht" was originally applied to small, fast and agile naval vessels suited to piracy and to employment by navies and coast guards against smugglers and pirates. Vessels of this type were adapted to racing by wealthy owners. The origin of civilian yachts as naval vessels, with their speed and maneuverability, made them useful for adaptation to their original function as patrol vessels. In the United States Navy armed yachts were typically private yachts expropriated for government use in times of war. Armed yachts served as patrol vessels during the Spanish–American War and the World Wars. In the latter conflicts, armed yachts were used as patrol vessels, convoy escorts, and in anti-submarine duties. In the United States, yachts were purchased from their owners with the owners given an option to repurchase their yacht at the close of hostilities.
The first USS Vedette (SP-163) was a commercial yacht built in 1899. At the outbreak of World War I, the yacht was leased by the United States Navy, and was used as a section patrol craft in the North Atlantic Ocean. She served honorably during the war, rescuing survivors at sea, and attacking a German U-boat. At war’s end, she was converted to her original configuration and returned to her owner, the railroad executive, financier, and philanthropist Frederick W. Vanderbilt (1856-1938) of New York City.
USS Sultana (SP-134) was a yacht acquired under a free lease by the U.S. Navy during World War I. She was outfitted as a patrol craft and was assigned to escort duty in the North Atlantic Ocean. She served honorably—rescuing survivors adrift in the water and protecting cargo ships from submarine attack—and was returned to her owner at the close of the war.
USS Lyndonia (SP-734), later known as USS Vega (SP-734) was a yacht acquired by the U.S. Navy during World War I. She was assigned as an armed patrol craft, but, at times, performed other duties along the U.S. East Coast, such as dispatch boat and training ship for the U.S. Naval Academy. Post-war, she was disposed of through sale to the public.
USS Utowana (SP-951) – also known as USS Victorine (SP-951) -- was a fishing trawler acquired by the U.S. Navy during World War I. The Navy had planned to use her as a minesweeper based out of Kittery, Maine; however, Utowana spent most of her service time operating as an armed patrol craft, responsible for escorting Allied ships across the dangerous North Atlantic Ocean. She served through the war and the armistice before returning to the United States for decommissioning.
The third USS Wanderer (SP-132), was an armed yacht that served in the United States Navy from 1917 to 1919.
USS Goliah (SP-1494), also listed as ID-1494, was an armed tug that served in the United States Navy as a patrol vessel and tug from 1918 to 1919.
The third USS Mohican (SP-117), later USS SP-117, was an armed yacht that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Kemah (SP-415) was a United States Navy patrol vessel in commission from 1918 to 1919.
The first USS Guinevere (SP-512) was a United States Navy patrol vessel in commission from 1917 to 1918.
USS Vergana (SP-519), later OYP-519, was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Satilla (SP-687) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Venetia (SP-431) was a large 589 gross ton steam yacht leased by the U.S. Navy during World War I. She was heavily armed with four 3-inch (76 mm) guns and depth charges, and was assigned duties of a patrol craft, escorting ships in convoy on the North Atlantic Ocean, and protecting those ships from German submarine attack. Venetia was awarded a "star of reward" for her antisubmarine work, and mounted the star on her stack. Post-war she was restored to her original civilian configuration, and was returned to her owner.
HMCS Wolf was an armed yacht of the Royal Canadian Navy during World War II that saw service on the British Columbia Coast of Canada. Constructed in 1915 as the yacht Wenowah, with the US entry into World War I, the vessel was taken into United States Navy service as USS Wenonah (SP-165) as a patrol ship. The vessel escorted convoys between the United States and Europe and between Gibraltar and Bizerte, Tunis and Genoa, Italy. After the war, Wenonah was loaned to the United States Coast and Geodetic Survey for three and a half years before being sold to private interests in 1928. In private ownership, the vessel was renamed at least twice, including Stranger and Blue Water.
United States