USS Captor (PYc-40), briefly the seventh ship to bear the name USS Eagle (AM-132), was a Q-ship of the United States Navy.
USS Kennison (DD–138) was a Wickes-class destroyer in the United States Navy during World War II, later redesignated AG-83. She was the first ship named for William Kennison.
The second USS Sapphire (PYc-2) was a patrol boat in the United States Navy.
USS Amethyst (PYc-3) was the yacht Samona II taken into service in the United States Navy serving as a patrol boat during World War II. After military service the vessel was returned to civilian status in 1946 and again became the yacht Samona II until sale and subsequent names of Pudlo and Explorer.
USS Amber (PYc-6) was a patrol boat in the United States Navy during World War II, built at Long Beach, California in 1930 as the yacht Infanta for the actor John Barrymore.
Black Douglas is a three-masted staysail auxiliary schooner built for Robert C. Roebling at the Bath Iron Works of Bath, Maine, and launched on 9 June 1930. Designed by renowned New York City naval architects H.J. Gielow & Co., she is one of the largest steel-hulled schooners ever built.
USS Cymophane (PYc-26) was a Cymophane-class patrol yacht acquired by the United States Navy early during World War II. She was used for patrol, escort, anti-submarine, and rescue operations along coastal waters.
USS Goldcrest (AM-78) was a minesweeper acquired by the U.S. Navy for the dangerous task of removing mines from minefields laid in the water to prevent ships from passing.
USS Sturdy (PC-460/PYc-50) was a yacht converted to a patrol boat acquired by the U.S. Navy for the task of patrolling the coastal waters of the U.S. East Coast during World War II. Her primary task was to guard the coastal area against German submarines.
USS Venture (PC-826/PYc-51) was a patrol boat acquired by the U.S. Navy for the task of patrolling the coastal waters of the New York coast during World War II. Her primary task was to guard the coastal area against German submarines. For this reason, she carried depth charges.
The third USS Calypso (AG-35) was launched 6 January 1932 for the United States Coast Guard as USCGC Calypso (WPC-104) by the Bath Iron Works in Bath, Maine. She was initially stationed at San Diego, California, and transferred to Baltimore, Maryland in 1938. She was transferred from the Coast Guard to the U.S. Navy on 17 May 1941 and commissioned the same day.
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 Felicia (SP-642) was a steam yacht acquired by the United States Navy during World War I. She was outfitted and armed by the Navy as a patrol craft, and was assigned to patrol the New England waters. Her task of protecting ships from German submarines was interrupted by her collision with a submarine. Post-war she was reconfigured to her civilian condition, and was sold in 1919.
USS Sardonyx (PYc-12), formerly the yacht named Queen Anne (1928), was a patrol boat in the United States Navy during World War II.
The second USC&GS Guide was a survey ship that served in the United States Coast and Geodetic Survey from 1941 to 1942.
The USS Alabaster (PYc-21) was a coastal patrol yacht of the United States Navy during World War II.
USS Valiant (PYc-51), originally USS PC-509, was a United States Navy patrol vessel in commission from 1941 to 1944.
USS Garnet (PYc-15) was a coastal patrol yacht in the service of the United States Navy.
USS Jasper (PYc-13) was a coastal patrol yacht in the service of the United States Navy. She was named for the gemstone Jasper.
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