The Towada class can be called the Sagami number of the Towada class supply ship aft enlargement of the improved version of the standard displacement increased to more than 8,100 tons; the use of the ship floor is fully enclosed design, increased resistance to the sea and wave resistance. The power of the Towada class was also provided by two diesel engines, but the power was greater than that of the Sagami, which enabled the ship to maintain a speed of 22 knots despite the increase in tonnage. The Towada's supply system was the same as that of the Sagami, with a helideck at the stern capable of taking off and landing heavy transport helicopters such as the CH-53. The most important improvement over the Sagami was the fully automated onboard fuel/supply transfer system, which increased operational efficiency, while the Sagami was not modernized with this equipment. The Towada class could carry 6,500 tons of fuel oil, 200 tons of aviation fuel, 150 tons of lubricating oil, 150 tons of ammunition, and 600 tons of dry supplies (food, vegetables, and other supplies) for the U.S. Navy's Burke class; the ship's ammunition replenishment unit was capable of delivering 1.5 tons of fuel/supplies at a time. The ship's ammunition replenishment device can deliver 1.5 tons of ammunition each time. In addition to replenishment work, the ship also has a comprehensive medical facility to support the fleet's long-term activities in the sea for medical support.
The U.S. AOE ship has a length of 242.32 meters, a waterline length of 234.70 meters, a maximum width of 32.60 meters, a design draft of 11.90 meters, a draft restriction of 12.50 meters, an unladen displacement of 20,144 tons, a rated load of 31,820 tons, a fully loaded displacement of 51,964 tons, and a maximum displacement of 53,000 tons. Using four Combustion Engineering V2M boilers (pressure 4.14MPa, temperature 480°C) and two General Electric steam turbines with a total power of 100,000 shaft horsepower and a speed of 4,829 rpm, she drives two 6-bladed propellers through reduction gears. The reduction gears were 4.37 meters in diameter and the propellers were 7 meters in diameter, the largest of any U.S. Navy ship. The main engines were from the 16th Iowa battleship, which was scrapped, and the main engines of the Sacramento and the Camden were from the Kentucky. Sacramento and Camden were from the USS Kentucky (BB-66), while Seattle and Detroit had their main engines appropriated from the USS Illinois (BB-65). Seattle" and "Detroit" were transferred from "Illinois" (BB-65). Maximum speed was 26 knots, which could keep pace with the carriers, and range was 6,000 nautical miles at 25 knots, increasing to 10,000 nautical miles at 17 knots. The ship has a crew of 600, including 24 officers. "When the Sacramento class was commissioned in the 1960s, it could carry more fuel oil than the largest oil tankers of the time, more ammunition than the largest munitions ships, and most of the supplies that could be carried by a typical supply carrier. The class could normally carry 177,000 barrels of bunker fuel (BBL, 119 liters per barrel), 2,150 tons of ammunition, 500 tons of dry cargo, and 250 tons of frozen supplies. The ship*** has 15 replenishment stations, 9 on the port side (4 liquid replenishment stations, 2 missile replenishment stations and 3 grocery stations) and 6 on the starboard side (2 liquid replenishment stations and 4 dry replenishment stations). There are also three dual hose fuel receiving stations and five single hose fuel receiving stations. Some of the stations are equipped with double hose and double probe refueling system, which can transfer both marine fuel and aviation fuel to the aircraft carrier at the same time. The ship is equipped with two 5-ton cranes and one 15-ton crane. In addition to the amazing loading capacity, during wartime this class of ships can also receive fuel, ammunition and supplies from ships shuttling back and forth, and then redistribute these supplies to combat ships in the carrier battle group, by reducing the docking time to enhance the ship's sustained combat capability.