The USS Winchester (SP-156) was a steel-hulled, steam-powered yacht built in 1916 by Bath Iron Works in Maine. Designed as a fast, destroyer-like civilian vessel, she measured 225 feet in length with a beam of 21 feet and a draft of 5 feet 6 inches. Her propulsion system comprised two geared Parsons steam turbines driving two shafts, powered by two watertube boilers, producing a total of 15,000 horsepower, which allowed her to reach a maximum speed of 32 knots. Originally constructed as a private yacht ordered by millionaire Peter W. Rouss, Winchester was regarded as a luxurious "floating palace" during her 1920s civilian career. She was launched on April 29, 1916, and later renamed Renard after her sale to private owners. Her interior featured opulent materials such as teak, ivory, and walnut, with extensive amenities including owner’s quarters, lounges, staterooms, baths, a dining room, and crew quarters. During World War I, the U.S. Navy acquired Winchester on May 30, 1917, and commissioned her on September 4, 1917, as USS Winchester (SP-156). She patrolled the southern New England coast and later operated in the Norfolk-Hampton Roads area, where she was involved in testing minesweeping equipment. Winchester was decommissioned on December 19, 1919, and sold in 1921 to Cox and Stevens, resuming her civilian career as a yacht. In the 1930s, she was rebuilt for luxury by Vincent Astor and later owned by Russell A. Alger Jr., and Cornelius Vanderbilt III. During World War II, she was requisitioned by the Royal Canadian Navy, renamed Renard, and served as an auxiliary patrol vessel. She was fitted with armaments, ASDIC, depth charges, and later torpedo tubes, functioning primarily in Halifax and Digby, Nova Scotia, until she was deemed unfit for further service in 1944. Subsequently sold in 1945, Renard was converted into a stationary power plant in 1949 and eventually became a derelict by 1955, marking the end of her maritime career.

This description has been generated using GPT-4.1-NANO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.