JS Oyashio (SS-511)

History

The Japanese Navy was stripped of most of its combat capabilities after World War II (1939-1945), so it did not have a capable submarine force for more than a decade after Japan surrendered to the Allies. Through the U.S. Military Assistance Program (MAP), the wartime Cato-class diesel-electric attack submarine USS Mingo (SS-261) was lent to a former U.S. enemy after it was decommissioned in January 1947. In August of the same year, she re-entered Japanese Navy service with the Kuroshio (SS-501) as an underwater training target for surface warships.

Decommissioned in March 1966, the hull finally sank in 1973.

The revelation of a successful U.S. submarine design prompted action within the resurgent Japanese Navy to commission an entirely new fleet of modern attack submarines. Initially, three levels were planned, each with different displacements to suit specific underwater characters. If there is only one class in question coming out, this is a 1000 ton vessel and there is only one class. The ship was launched on December 25, 1957, and May 25, 1959.

The submarine was then officially commissioned on June 30, 1960 under the designation JDS Oyahsio (SS-511) for a period of 16 years.

As constructed, the SS-511 displaces 1,157 tons when surfaced and 1,445 tons underwater. Her dimensions include a length of 258.5 feet, a beam of 23 feet, and a draft of 15 feet.

Power comes from twin Kawasaki V9V22/30MATL diesel-electric engines producing 2,700 hp on the water and 5,960 hp underwater. The top speed is 19 knots on the surface and 13 knots underwater, with a range of up to 10,000 nautical miles. Her crew strength was 65 men, and armament consisted of 4 x 533 mm (21 in) torpedo tubes, all four mounted on the bow. Overall, her design is traditional, with a rounded bow and tapered stern for the fixed fin structure and propeller assembly.

Except for the Japanese-led design (led by Kawasaki Heavy Industries in Kobe, Japan) combined with the wartime IJN I In addition to the elements of the -201 series, the pro-chao inherits some of the form and function of earlier American submarines, thus forming a powerful underwater attack platform.

Oyashio, named after Bering DC ("Oyashio Current"), began service with the new Japan Maritime Self-Defense Force (JMSDF) on 1 August 1962 as part of Submarine Squadron 1 (SUBRON 1). Wu District.

She made a cameo visit to Pearl Harbor, Hawaii, where a surprise naval attack on the United States prompted the United States to go to war with Japan. She was assigned to SUBRON 2 in early 1965 and ended her days at U-boat Flotilla 1 in the mid-1970s.

JDS Oyashio retired on September 30, 1976 after serving more than a decade in rebuilding the country. Her hull was stripped of its usefulness, and her hull was later scrapped. Her name was resurrected for the IDS Oyashio (SS-590), a diesel attack submarine that appeared in 1998.

Specification

Basic

Roles

Dimensions

Weight

Performance

Performance

ARMAMENT

AIR WING