The USNS John Ericsson (T-AO-194) is a Henry J. Kaiser-class underway replenishment oiler designed to provide vital logistical support to the United States Navy. Constructed by Sun Shipbuilding and Drydock Company in Chester, Pennsylvania, the vessel was laid down on March 15, 1989, and launched on April 21, 1990. She entered service on March 18, 1991, operated by the Military Sealift Command with a primarily civilian crew. Measuring 206.5 meters (677 feet 6 inches) in length and with a beam of 29.7 meters (97 feet), the John Ericsson has a full load displacement of approximately 41,353 tonnes (40,700 long tons). Her draft is 11 meters (36 feet). The ship's propulsion system consists of two Colt-Pielstick diesel engines generating a combined power of 25.6 megawatts (34,800 shp), driving two shafts and enabling a maximum speed of 20 knots (37 km/h). The vessel is equipped with five fuelling stations capable of simultaneously refueling two ships, with pumping capacities of up to 900,000 US gallons (3,400,000 liters) of diesel or 540,000 US gallons (2,000,000 liters) of jet fuel per hour. Her fuel capacity allows her to carry 180,000 imperial barrels (approximately 29 million liters) of aviation fuel or fuel oil. Designed primarily for underway replenishment, she can carry a dry cargo of 690 square meters (7,400 square feet) and refrigerate 128 pallets of food, supporting sustained naval operations. The ship features a helicopter platform but lacks maintenance facilities. While initially unarmed, it can be fitted with close-in weapon systems if required. Her complement includes 89 civilian personnel (including 19 officers), 29 spare crew members, and 6 Navy personnel. USNS John Ericsson operates mainly within the Pacific Fleet, playing a crucial logistical role. Notably, in March 2014, she supported refueling and logistical operations related to the USS Pinckney during the search for missing Malaysia Airlines Flight 370, exemplifying her importance in supporting U.S. naval and humanitarian missions.

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