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 Ronquil (SS-396), a Balao-class submarine, was the only ship of the United States Navy named after the ronquil, a spiny-finned fish found along the northwest coast of North America. It has a single dorsal fin and a large mouth and resembles the tropical jawfish.
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.
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, Chief Boatswain J. H. Keevers, USN in command.
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 Emeline (SP-175) was a yacht acquired by the U.S. Navy during World War I. She was outfitted with military equipment, including 3-inch guns, and was commissioned as a patrol craft, assigned to protect shipping in the North Atlantic Ocean. She saved the lives of survivors of shipwrecks, and provided escort protection from German submarines for commercial ships. Post-war she was sold to the highest bidder, who had the yacht sail to San Diego, California, for delivery.
USS Felicia (SP-642) was a yacht acquired by the U.S. 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 Felicia (PYc-35) was a yacht acquired by the United States Navy during World War II. Felicia was outfitted as a patrol craft by the Navy, and was assigned to patrol the New England waters. She was based out of Newport, Rhode Island until 16 December 1943 when she was based out of Boston, Massachusetts, as a training ship for naval cadets at Harvard University. Post-war she was decommissioned and transferred to the Maritime Commission.
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.
United States