The USS Tacony (SP-5) was an armed yacht that served as a Section patrol vessel for the United States Navy from May 24, 1917, to November 29, 1918, during World War I. Originally built in 1911 by the Mathis Yacht Building Company in Camden, New Jersey, the vessel was initially named Sybilla II and constructed for John Fred Betz, III, of Essington, Pennsylvania, a member of the Philadelphia Yacht Club. The yacht was designated as Mathis yard number seven and bore the official number 208469. Designed with both racing and leisure in mind, Sybilla II featured a well-appointed interior with a focus on comfort. It included two staterooms located aft, a lobby passageway, additional sleeping areas, and a fully equipped bathroom. Forward of the engine room, the vessel's layout comprised a galley, a saloon with buffets and seating, and quarters for up to six crew members, including a captain's stateroom and toilet facilities. The owner's quarters, finished in African mahogany and trimmed with ivory, could accommodate ten people. The yacht carried auxiliary boats: a fifteen-foot mahogany tender on port side davits and a twelve-foot dinghy hung from the stern. Power was supplied by a specially built Craig six-cylinder engine generating 150 horsepower, with two 850-gallon gasoline tanks in the engine room. Unusual for a motorboat of its time, Sybilla II was equipped with two masts and two funnels, with the masts capable of supporting sails for emergency propulsion or sailing. Electricity was generated by a dedicated electric plant. Prior to its naval service, Betz purchased another yacht, Sybilla III (originally Paragon), which was being prepared for a cruise to Florida. Sybilla II was sold to Jacob S. Disston of Tacony, Pennsylvania, who renamed her Tacony. The U.S. Navy acquired her on a free lease during World War I, commissioning her as USS Tacony (SP-5) to perform patrol duties within the 4th Naval District. After the war, she was returned to her owner on November 29, 1918. The vessel's service underscores her versatility and the maritime practices of converting private yachts for wartime patrol duties.

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