USS Winchester (SP-156) was an armed yacht that served in the United States Navy as a patrol vessel from 1917 to 1919. Prior to and following World War I, Winchester was a private yacht, later renamed Renard. In World War II, Renard was requisitioned for use in the Royal Canadian Navy as a patrol vessel, keeping her name. She was returned to her owners in 1944.
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 Hippocampus (SP-654) was a yacht leased by the U.S. Navy during World War I. She was used as a patrol boat along the New England coast.
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 Halcyon II (SP-582) was a yacht acquired by the U.S. Navy during World War I. She was outfitted as an armed patrol craft and stationed in Boston harbor in Massachusetts. She spent much of the war patrolling the Massachusetts waterways for German submarines and, in 1919, was decommissioned after being damaged in a collision.
USS Akbar (SP-599) was first owned by George W. Childs Drexel of Philadelphia, a member of the city's Corinthian Yacht Club. The original name Akbar, apparently named for Mogul emperor Jalul-ud-Din Muhammed, known as "Akbar", was retained upon entry into naval service.
USS Gem (SP-41) was an armed yacht that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Joyance (SP-72) was an armed yacht that served in the United States Navy as a patrol vessel from 1917 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 Navajo III (SP-298), later USS SP-298, was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Cigarette (SP-1234) was a patrol vessel that served in the United States Navy from 1917 to 1919.
USS Arcady (SP-577) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Valeda (SP-592) was a United States Navy patrol vessel in commission from 1917 to 1919.
The first USS Ibis (SP-3051), also listed as USS Ibis (ID-3051), was a United States Navy minesweeper in commission from 1918 to 1919.
The second USS Calumet (SP-723) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Hobo II (SP-783) was a United States Navy patrol vessel in commission from 1917 to 1919.
The second USS Wissahickon (SP-852), which also served as USS SP-852, was a United States Navy patrol vessel in commission from 1917 to 1918.
USS Talofa (SP-1016) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Katrina (SP-1144) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Louise No. 2 (SP-1230), sometimes written Louise # 2 and also referred to during her naval career as Louise and as Pilot Boat No. 2, was a United States Navy patrol vessel in commission from 1917 to 1919. The Louise, was a pilot boat from 1900 to 1917. She was a replacement for the pilot boat Columbia, that was washed ashore in 1898. After the World War I the Louise returned to pilot service until 1924 when she was purchased as a yacht. In 1924, the Boston pilot boat Pilot, took the place of the Louise.
United States
