USS Absegami (SP-371) was a motorboat acquired on a free lease by the United States Navy during World War I. She was outfitted as an armed patrol craft and assigned to patrol the Delaware River from Philadelphia, Pennsylvania, to Cape May, New Jersey on the Delaware Bay. When the Navy found her excess to their needs, she was returned to her former owner.
USS O-13 (SS-74) was an O-class submarine of the United States Navy. Her keel was laid down on 6 March 1916 by the Lake Torpedo Boat Company in Bridgeport, Connecticut.
USS Idaho (SP-545) was an existing 60-foot-long motorboat purchased by the U.S. Navy during World War I. She was outfitted as an armed patrol craft and assigned to the Fourth Naval District based at League Island Navy Yard, near Philadelphia, Pennsylvania. Her patrol duties stretched from Philadelphia on the Delaware River to Cape May, New Jersey, on the Delaware Bay. Post-war she was returned to her owner.
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 Helenita (SP-210) was a yacht leased from its owner by the U.S. Navy during World War I. She was outfitted as an armed patrol craft and initially assigned to North Atlantic Ocean duty, but found to be too lightly built for the ocean. She was then relegated to patrol of Long Island Sound and the Delaware Bay until war's end, when her guns were removed and she was returned to her owner.
USS Zenith (SP-61) was an armed motorboat that served in the United States Navy as a Section patrol vessel from 1917 to 1918.
USS Arawan II (SP-1) was a motor yacht that served in the United States Navy as a patrol vessel from 1917 to 1918.
USS Helena I (SP-24) was an armed yacht that served the United States Navy as a patrol vessel from 1917 to 1919.
The first USS Kangaroo (SP-1284) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Coco (SP-110) was an armed motorboat that served in the United States Navy as a Section patrol vessel from 1917 to 1919.
USS Tanguingui (SP-126) was an armed motor yacht that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Apache (SP-729) was the first to be delivered of eight motor boats built by Herreshoff Manufacturing Company at Bristol, Rhode Island ordered and financed by members of the Eastern Yacht Club of Marblehead, Massachusetts. The boats were designed by Albert Loring Swasey and Nathanael Greene Herreshoff with the intention that the boats be used by the Navy as patrol craft and built with Navy approval of the design. Apache, as were the other boats, bore names under construction chosen by the owners and were then given the Section Patrol numbers on Navy acceptance and activation. The names were dropped after a period and all the boats then bore only the S.P. numbers.
USS Aloha (SP-317) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Vidofner (SP-402) was a United States Navy patrol vessel in commission from June to December 1917.
The third USS Vigilant (SP-406), later USS SP-406, was a United States Navy Section patrol vessel in commission from 1917 to 1918.
The second USS Sylvia (SP-471), later USS SP-471, was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Kuwana II (SP-594) was a United States Navy patrol vessel in commission from 1917 to 1918.
USS Lexington II (SP-705), later USS SP-705, was an American patrol vessel in commission from 1917 to 1918.
USS Vitesse (SP-1192) was a United States Navy patrol vessel in commission from 1917 to 1918.
The third USS Pilgrim (SP-1204) was a United States Navy patrol vessel in commission from 1917 to 1919.
United States