The USS Cavalla (SSN-684) was a Sturgeon-class nuclear-powered attack submarine, notable for being a modified "long hull" variant, approximately 10 feet longer than its earlier counterparts. Construction of the vessel was awarded to the Electric Boat Division of General Dynamics Corporation in Groton, Connecticut, with the keel laid on June 4, 1970. She was launched on February 19, 1972, sponsored by Mrs. Melvin Price, and officially commissioned on February 9, 1973, under the command of Commander Bruce DeMars, who later achieved the rank of Admiral. Designed as a versatile and advanced submarine, Cavalla operated initially with Submarine Squadron Ten before transferring to the Submarine Development Squadron 12 at Groton. In October 1978, she was reassigned to the Pacific Fleet, arriving at Pearl Harbor in November 1978 after a refit at Puget Sound Naval Shipyard, which lasted until March 1980. At Pearl Harbor, she was assigned to Submarine Squadron 1 and conducted operations across the globe, including the Atlantic, Pacific, Indian, and Arctic Oceans. Cavalla's service included a notable Westpac cruise in 1981, during which she visited HMAS Stirling in Western Australia. In 1983, she became the first submarine to successfully perform dry deck shelter operations—an advanced capability enabling personnel to leave the submarine while submerged. Her deployment in 1985–1986 supported critical dry deck shelter operations for SEAL team certification, earning her the Meritorious Unit Commendation. Her crew also gained various ceremonial recognitions, such as "shellback" status and transits of the Panama Canal and International Date Line. Beyond operational deployments, Cavalla was involved in scientific research, including an Arctic Ocean expedition in 1995, and participated in the first joint American-Japanese deep submergence rescue vehicle operation in 1996. She was decommissioned on March 30, 1998, and dismantled through the Nuclear-Powered Ship and Submarine Recycling Program, completed by November 17, 2000. The USS Cavalla played a significant role in advancing submarine technology and operational capabilities during her service life.

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