Submarine I-401

Open the military map

伊号第四百一潜水艦

Submarine
I-401 submarine submerging — I-400 class
I-401 submarine submerging — I-400 class — Public Domain, Imperial Japanese Navy

Second Sen-Toku class submarine, sister of I-400. Commanded by Lt. Cdr. Nambu during the planned Ulithi strike. Surrendered August 1945 and scuttled off Hawaii in May 1946. Wreck discovered in 2005.

Class / type
伊四百型(潜特型)
Displacement
5,223 Tons
Complement
144
Launched
11 March 1944
Commissioned / formed
8 January 1945
Lost / disbanded
31 May 1946
Armament
53cm魚雷発射管8門(魚雷20本)、14cm砲1門、25mm機銃4門、晴嵐攻撃機3機
Fate
Scuttled

History

IJN I-401 was the second ship of the Sen-Toku class, built at Sasebo Naval Arsenal and commissioned on January 8, 1945. Like her sister I-400, she could carry three Aichi M6A1 Seiran floatplane bombers. Commanded by Lieutenant Commander Nobukiyo Nambu, she was designated as part of the force for Operation Arashi — a surprise attack on the US anchorage at Ulithi Atoll in the Caroline Islands. After Japan's surrender was announced on August 15, 1945, Nambu ordered the Seiran aircraft dumped overboard. Intercepted at sea off Honshu by the submarine USS Segundo on August 29, 1945, he surrendered his boat to her; after the two submarines reached Sagami Bay on August 31, Nambu handed over two swords to Segundo's prize crew officer as a token of surrender. I-401 was taken to Hawaii for inspection and scuttled on May 31, 1946. Her wreck was discovered by the Hawaii Undersea Research Laboratory in March 2005 at a depth of 820 meters.

Related sites (3)

  • Sasebo Naval Arsenal, Sasebo, Nagasaki — laid down April 26, 1943; launched March 11, 1944

  • Kure Naval District — I-401 was registered here on completion (8 January 1945)

  • Off Kalaeloa (Barbers Point), Oahu, Hawaii — scuttled May 31, 1946. Wreck discovered March 2005 at 820m depth.

Images

I-400 class submarine at sea
I-400 class submarine at sea — CC BY 2.0

Sources

  1. IJN Submarine I-401: Tabular Record of Movement (Combined Fleet)Website
  2. Japanese submarine I-401 - WikipediaWebsite
  3. 伊号第四百一潜水艦 - WikipediaWebsite