The Cruiser submarine Type-C (巡潜丙型潜水艦, Junsen Hei-gata sensuikan) was one of the first classes of submarine in the Imperial Japanese Navy (IJN) to serve during the Second World War. Type-C submarines were better armed than the Type-A and Type-B. The Type-Cs were also utilized as Kō-hyōteki or Kaiten mother ships, for this reason they were not equipped with aviation facilities.
Class variants
The Type-C submarines were divided into three classes:
Type V22B (第379号艦型, Dai-379-Gō kan-gata, Vessel number 379-class). However, the Vessel number 379-class was never built.
Type-C (I-16 class)
Project number S38 and S38B (Latter batch). They were based on the I-7 class. Eight boats were built between 1937 and 1944 under the Maru 3 Programme (Boats 44 - 48) and the Maru Kyū Programme (Boats 376 - 378).
Mitsubishi, Kōbe Shipyard Kure Naval Arsenal (after launch)
15-09-1937
28-07-1938
20-03-1940
Sank Yugoslav merchant ship Susak on 06-06-1942. Sank Greek merchant vessel Aghios Georgios IV on 07-06-1942. Sank Yugoslav merchant ship Supetar on 12-06-1942. Sank Swedish merchantman Eknaren on 01-07-1942.
Damaged HMS Ramillies on 09-05-1942 by Kō-hyōteki. Damaged RMS British Loyalty on 09-05-1942 by Kō-hyōteki. Sank Panamanian merchant ship Johnstown on 05-06-1942. Sank Greek merchant vessel Christos Markettos on 08-06-1942. Sank RMS Mahronda 11-06-1942. Sank Panamanian merchantman Hellenic Trader on 12-06-1942. Sank RMS Clifton Hall on 12-06-1942. Sank Norwegian merchant ship Goviken on 30-06-1942. Sank RMS Steaua Romana on 30-06-1942. Damaged unknown merchant ship on 03-12-1942 by Kō-hyōteki.
Sank HMAS Kuttabul on 31-05-1942 by Kō-hyōteki. Sank Australian merchant ship Iron Chieftain on 03-06-1942. Damaged RMS Orestes on 09-06-1942. Damaged USS Alchiba on 07-12-1942 by Kō-hyōteki.
Project number S37D. Twenty boats were planned under the Maru Tsui Programme (Boats 625 - 632) and the Kai-Maru 5 Programme (Boats 5141 - 5155). According to their Project number, they were one of the variants of the Type-B submarine. Seventeen boats were cancelled in late 1943, because the IJN was planning to build the Type E submarine [ja] (戊型潜水艦, Bo-gata sensuikan) which was to become the primary submarine in 1945.
Project number S49B. Twenty eight boats were planned under the Maru Kyū Programme (Boats 379 - 381) and the Kai-Maru 5 Programme (Boats 5156 - 5180). All boats were cancelled in late 1943, because the IJN was planning to build the Type E submarine [ja] (戊型潜水艦, Bo-gata sensuikan).
^She contacted the 6th Fleet HQ on 26-10-1944. Therefore, the US Navy's record assuming that she was sunk by USS Richard M. Rowell on 24-10-1944 is an error. Reported sunk two different times by different U.S. Navy ships in The official chronology of the U.S. Navy in World War II – Chapter VI: 1944 p.567 & p.585
Rekishi Gunzō, History of Pacific War Vol.35 Kō-hyōteki and Kōryū, Gakken (Japan), April 2002, ISBN4-05-602741-2
Rekishi Gunzō, History of Pacific War Vol.36 Kairyū and Kaiten, Gakken (Japan), May 2002, ISBN4-05-602693-9
Rekishi Gunzō, History of Pacific War Extra, "Perfect guide, The submarines of the Imperial Japanese Forces", Gakken (Japan), March 2005, ISBN4-05-603890-2
Model Art Extra No.537, Drawings of Imperial Japanese Naval Vessels Part-3, Model Art Co. Ltd. (Japan), May 1999, Book code 08734-5
The Maru Special, Japanese Naval Vessels No.31 Japanese Submarines I, Ushio Shobō (Japan), September 1979, Book code 68343-31
S: Single ship in classC: Converted to ship typeL: Officially classed as light cruisers until 1939 refitsI: Incomplete until the end of the warX: Cancelled
Japanese transcription: class/type (型, "Gata"), (re)model/mark (改, "Kai"), A (甲, "Kō"), B (乙, "Otsu"), C (丙, "Hei"), D (丁, "Tei")