page_title: Japanese submarine I-401
hierarchical_section_title: Japanese submarine I-401
caption_attribution_description: 日本語: 日本海軍　伊号第一四潜水艦 English: IJN I-14 in 1945
context_page_description: The Sentoku-class I-401 was once the largest submarine in the world. It was commanded by Lieutenant Commander Nobukiyo Nambu of the Imperial Japanese Navy during World War II. Capable of carrying three two-seat Aichi M6A1 "Seiran" float torpedo bombers, the Sentoku-class submarines were built to launch a surprise air strike against the Panama Canal.
context_section_description: The Sentoku-class I-401 (伊号第四百一潜水艦, I-gō-dai yon-hyaku-ichi-sensuikan) was once the largest submarine in the world. It was commanded by Lieutenant Commander Nobukiyo Nambu of the Imperial Japanese Navy during World War II. Capable of carrying three two-seat Aichi M6A1 "Seiran" (Mountain Haze) float torpedo bombers, the Sentoku-class submarines were built to launch a surprise air strike against the Panama Canal.
caption: I-401 between USS Proteus (left) and I-14 (right), on 29 August 1945.
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