The SS Antinous was a steel-hulled, steam cargo vessel constructed in 1920 by Guy M. Standifer Construction Company of Vancouver, as part of the United States Shipping Board's post-World War I shipbuilding program. It was designed as a standard Design 1015 cargo ship, approximately 9,400 deadweight tons, with a length of 401.4 feet between perpendiculars and a beam of 53.2 feet. The vessel featured a double-bottom hull throughout, with five main holds and modern cargo handling machinery, including ten winches and derricks, facilitating rapid loading and unloading from five large hatches. The ship was powered by a single 2,500 indicated horsepower triple-expansion steam engine, driving a single screw propeller, capable of reaching speeds up to 11 knots. Her steam was generated by three Scotch marine boilers fueled by oil, and she was equipped with wireless communication, submarine signal systems, and deck lighting. Launched on June 22, 1920, and sponsored by Mrs. Ellis Lewis Garretson, Antinous had a comprehensive array of modern features, including a steel hull with Isherwood longitudinal framing for added strength. After successful sea trials, she was delivered to Green Star Line and embarked on her maiden voyage in August 1920, carrying lumber and railroad ties from Portland and the Puget Sound ports to Southampton. Her service primarily involved routes from the Gulf Coast to Europe, notably England and Germany, carrying cargoes such as lumber, cotton, gum rosin, phosphates, and general merchandise. Throughout her operational life, Antinous experienced several notable events, including a hurricane in 1927 that caused deck damage and crew casualties, as well as a collision in Mobile Bay in 1922, which she survived with minor damage. Upgraded in 1934 with a General Electric steam turbine to increase her service speed, she continued to serve the Gulf to Europe trade until her wartime deployment. During World War II, she was armed for convoy duty and participated in transatlantic operations. Her maritime significance lies in her role as a standard cargo vessel of the interwar period, serving vital trade routes and exemplifying the U.S. Merchant Marine expansion efforts. She was ultimately sunk in September 1942 after being torpedoed by German U-boat U-515 in the Caribbean.

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