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 Impetuous (PYc-46) was a private yacht purchased by the Navy in August 1940 that served as a patrol boat of the United States Navy in Central America. The yacht was built as Paragon, the first of at least two Davol yachts to bear the name, in 1915 for Charles J. Davol of Providence, Rhode Island. In 1916 Davol sold the yacht to John Fred Betz, 3d of Philadelphia who renamed the yacht Sybilla III which served as the Section Patrol yacht USS Sybilla III (SP-104) from May 1917 to December 1918. Sybilla III remained in Betz's ownership until sale in 1935 to R. Livingston Sullivan of Philadelphia who renamed the yacht Arlis. On 12 August 1940 the Navy purchased the yacht placing it in commission as USS PC-454 on 16 October. The vessel was given the name Impetuous and reclassified PYc-46 on 15 July 1943. The yacht was decommissioned at Philadelphia 31 August 1944 and transferred to the War Shipping Administration for sale.
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 second USS Tacony (SP-5) was an armed yacht that served in the United States Navy as a Section patrol vessel from 24 May 1917 to 29 November 1918. The yacht had been built in 1911 by the Mathis Yacht Building Company at Camden, New Jersey for John Fred Betz, III, of Essington, Pennsylvania and member of the Philadelphia Yacht Club as Sybilla II. The vessel was Mathis yard number seven with 208469 the official number issued.
USS Riette (SP-107) was an armed motorboat 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 Nirvana (SP-706), later USS SP-706, was a United States Navy patrol vessel in commission in 1917 and from 1918 to 1919.
The first USS Josephine (SP-913), later USS SP-913, was a United States Navy patrol vessel in commission from 1917 to 1918.
The third USS Vigilant (SP-406), later USS SP-406, was a United States Navy Section patrol vessel in commission from 1917 to 1918.
USS Beaumere II (SP-444) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Aurore II (SP-460) was a United States Navy patrol vessel in commission from 1917 to 1919.
The second USS Sylvia (SP-471), later USS SP-471, was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Sayona II (SP-1109) was a United States Navy patrol vessel in commission from 1917 to 1918.
USS Owaissa (SP-659) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Miramar (SP-672), later USS SP-672, 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 See W. See (SP-740) was a United States Navy patrol vessel in commission from 1917 to 1919.
The second USS Itasca (SP-810), later USS SP-810, was a United States Navy patrol vessel in commission from 1917 to 1919 which was employed as a hospital boat.
USS Maysie (SP-930) was a United States Navy patrol vessel in commission from February to December 1918.
USS San Toy II (SP-996) was a United States Navy ship's tender and ferry in commission from 1917 to 1919.
United States