USS Sea Hawk (SP-2365) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.
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.
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.
The first USS Courtney (SP-375) was a patrol boat and minesweeper in commission in the United States Navy from 1917–1919.
USS Patrol No. 1 (SP-45), often rendered as USS Patrol #1, was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Helena I (SP-24) was an armed yacht that served 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.
The second USS Cossack (SP-695) was an armed motorboat that served in the United States Navy as a patrol vessel from 1917 to 1919.
USS Katherine K. (SP-220) was a United States Navy patrol vessel and tug in commission from 1917 to 1919.
Admiral was a wooden-hulled motorboat built by Adams, of Boothbay, Maine, in 1913—was acquired by the US Navy from the Governor of the state of Maine on 1 May 1917 for section patrol duty in the 1st Naval District. Assigned the classification SP-541, Admiral was placed in commission on 31 May 1917.
USS Fli-Hawk (SP-550) was a United States Navy patrol vessel in commission from 1917 to 1919.
USS Empress (SP-569) was a United States Navy passenger barge in commission during 1917.
USS Raeo (SP-588) was a United States Navy patrol vessel in commission from 1917 to 1919. Prior to her U.S. Navy service, she operated as the motor passenger vessel Raeo from 1908 to 1917. After the conclusion of her U.S. Navy career, she served as the fishery patrol vessel USFS Kittiwake in the United States Bureau of Fisheries fleet from 1919 to 1940 and as US FWS Kittiwake in the Fish and Wildlife Service fleet from 1940 to 1942 and from 1944 to at least 1945, and perhaps as late as 1948. During World War II, she again served in the U.S. Navy, this time as the yard patrol boat USS YP-199. She was the civilian fishing vessel Raeo from 1948 to 1957, then operated in various roles as Harbor Queen from 1957 to 1997. She became Entiat Princess in 1998 and as of 2009 was still in service.
USS Saxis (SP-615) was a United States Navy patrol vessel in commission during 1917.
USS Katie (SP-660) was a United States Navy 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 first USS Elizabeth (SP-972) was a United States Navy patrol vessel in service from 1917 to 1919.
The second USS Elizabeth (SP-1092) was a United States Navy patrol vessel in commission from 1917 to 1918.
A Section Patrol Craft was a civilian vessel registered by the United States Navy for potential wartime service before, during, and shortly after World War I.
VP-90 was a Patrol Squadron of the U.S. Navy Reserve. The squadron was established on 1 November 1970 at NAS Glenview, Illinois, where it was based for the rest of its life. It was disestablished on 30 September 1994, after 25 years of service. The squadron's nickname was the Lions from 1974 onward. Elements of the squadron made 22 major overseas deployments.
United States