The USS Ramapo (AO-12) was a Patoka-class replenishment oiler constructed under a U.S. Shipping Board contract. Laid down on January 16, 1919, by Newport News Shipbuilding & Dry Dock Co. in Virginia, she was launched on September 11, 1919, and commissioned on November 15 of the same year. As a replenishment oiler, she was designed to supply fuel to naval ships, and her specifications would have aligned with her class, emphasizing large fuel storage capacity and the ability to operate at sea for extended periods. Initially, USS Ramapo conducted Caribbean shuttle runs, transporting petroleum products from Port Arthur, Texas, to Guantanamo Bay and the Canal Zone until April 1920. From 1920 to 1922, she expanded her operations along the U.S. Gulf and East coasts, as well as in European waters, providing vital fuel supplies to ships and bases. In 1922, she was reassigned to the Pacific, delivering oil to the Pacific Fleet and making occasional trips to the Canal Zone and the East Coast. Beginning in 1928, Ramapo dedicated herself to regular supply runs for the Asiatic Fleet, traveling from San Pedro to the Philippines and China, averaging about four round-trips annually over nine years. During these voyages, she also performed collateral hydrographic survey duties, collecting data for the Hydrographic Office in the central and western Pacific island groups. A notable event occurred on February 7, 1933, when Ramapo encountered the tallest rogue wave ever recorded at the time, measuring 34 meters (112 feet) in height, during a crossing from Manila to San Diego. During late 1937, she briefly shifted her focus to the Aleutians before resuming East Asian runs until spring 1941, when she transitioned to Hawaiian shuttle service. At Pearl Harbor during the December 7, 1941, attack, she subsequently returned to San Pedro and undertook operations to Bora Bora and Alaskan stations, supporting wartime logistics. Throughout World War II, Ramapo primarily operated between Port Townsend and Alaskan and mainland stations, contributing to the Pacific Theater's logistical efforts. Her service was distinguished by her rescue of the entire crew of USS Wasmuth on December 27, 1942, when she battled heavy seas to save the sinking minesweeper, transferring crew members amid dangerous conditions. She earned one battle star for her wartime service. Decommissioned in January 1946, USS Ramapo was transferred to the Maritime Commission and struck from the naval register later that year, marking the end of her notable 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.