USCGC Morro Bay
USCGC "Morro Bay" (WTGB-106) is the sixth vessel of the s built in 1980 and operated by the United States Coast Guard. The ship was named after a seaside city in San Luis Obispo County, California. Design. The Bay-class tugboats operated primarily for domestic ice breaking duties. They are named after American bays and are stationed mainly in the northeast United States and the Great Lakes. WTGBs use a low pressure air hull lubrication or bubbler system that forces air and water between the hull and ice. This system improves icebreaking capabilities by reducing resistance against  the hull, reducing horsepower requirements. Construction and career. "Morro Bay" was laid down by the Tacoma Boatbuilding Co., in Tacoma, Washington on 6 August 1979. She was launched on 11 July 1980 and later commissioned at the Reserve Training Center in Yorktown, on 28 March 1981. She served at Yorktown until 1998 before she was relocated to Cleveland, Ohio in the summer of 2014. On 2 July 2008, "Morro Bay" was returning to New London when she collided with a Block Island ferry. In May 2018, "Morro Bay" arrived at the Great Lakes Shipyard for repairs and maintenance. On 13  June 2021, while the museum ship was being towed out of Cleveland for repairs, "Morro Bay" collided with "Cod" at 11:30 a.m., though damage to the vessels was minor.