User:Hungrydog55/sandbox/military/pacificfront/1940-00 List of submarines of the IJN

Submarines

Main article: Submarines of the Imperial Japanese Navy

Numbers in parentheses = (vessels commissioned / vessels surviving war)

1st Class submarines

In commission during World War II

Class	Number Commis- sioned	War Losses	Loss Rate
Junsen class	8	8	100.0%
Kou-class	6	5	83.3%
Otsu-class	29
Totals

Junsen-class

I-1 in 1930	Type J1 Junsen 1 gata (巡潜I型)
	Displacement	Surfaced: 1,970 long tons Submerged: 2,791 long tons
	Speed	Surfaced: 18.8 knots Submerged: 8.1 knots
	Range	Surfaced: 24,400 nmi @ 10 knots Submerged: 60 nmi @ 3 knots
	Test depth	245 ft (75 m)
	Complement	75
	Torpedo tubes	6 × 21 in (530 mm)

Type	Ship	Keel Laid	Completed or Commisioned	War Loss
Type J1 Junsen 1 gata 巡潜I型	I-1	Mar 1923	Mar 1926	Wrecked off Guadalcanal, Jan 1943
	I-2	Aug 1923	Jul 1926	Depth charged in Bismarck Sea, Apr 1944
	I-3	Nov 1923	Nov 1926	Torpedoed off Guadalcanal, Dec 1942
	I-4	Apr 1926	Dec 1929	Torpedoed off Guadalcanal, Dec 1942
Type J1M Junsen 1 gata kai 巡潜I型改	I-5	Oct 1929	Jul 1932	Depth charged east of Guam, Jul 1944

I-6 in 1935	Type J2 Junsen 2 gata (巡潜II型)
	Displacement	Surfaced: 1,900 long tons Submerged: 3,061 long tons
	Speed	Surfaced: 20 knots Submerged: 7.5 knots
	Range	Surfaced: 20,000 nmi @ 10 knots Submerged: 65 nmi @ 3 knots
	Test depth	260 ft (79 m)
	Complement	80
	Torpedo tubes	6 × 21 in (530 mm)

Type	Ship	Keel Laid	Completed or Commisioned	War Loss
Type J2 Junsen 2 gata 巡潜II型	I-6	Oct 1932	May 1935	Lost to prob. friendly fire off Saipan, Jun 1944

I-7 in 1937	Type J3 Junsen 3 gata (巡潜III型)
	Displacement	Surfaced: 2,231 long tons Submerged: 3,583 long tons
	Speed	Surfaced: 23 knots Submerged: 8 knots
	Range	Surfaced: 14,000 nmi @ 16 knots Submerged: 80 nmi @ 3 knots
	Test depth	330 ft (100 m)
	Complement	100
	Torpedo tubes	6 × 21 in (530 mm)

Submerged	Ship	Keel Laid	Completed or Commisioned	War Loss
Type J3 Junsen 3 gata 巡潜III型	I-7	Sep 1934	Mar 1937	Wrecked in Aleutian Islands, Jun 1943
	I-8	Oct 1934	Dec 1938	Sunk off Okinawa, Mar 1945

Kou-class

I-10 at Penang in 1942	Type A1 submarine (巡潜甲型潜水艦)
	Displacement	Surfaced: 2,919 long tons Submerged: 4,129 long tons
	Speed	Surfaced: 23.5 knots Submerged: 8 knots
	Range	Surfaced: 16,000 nmi @ 10 knots Submerged: 60 nmi @ 3 knots
	Test depth	330 ft (100 m)
	Complement	100
	Torpedo tubes	6 × 21 in (530 mm)

Type	Ship	Keel Laid	Completed or Commissioned	Fate
				War Loss	Postwar
Type A1 Kou gata (S35) (甲型 (S35))	I-9	Jan 1938	Feb 1941	Depth charged in Aleutians, Jun 1943
	I-10	Jun 1938	Oct 1941	Depth charged off Saipan, Jul 1944
	I-11	Apr 1939	May 1942	Missing south of Funafuti, Mar 1944
Type A2 Kou gata (S35B) (甲型 (S35B))	I-12	Nov 1942	May 1944	Depth charged north of Marshall Islands, Jul 1944
Type AM Kou gata (S35G) (甲型 (S35G))	I-13	Feb 1943	Dec 1944	Depth charged east of Honshu, Nov 1944
	I-14	May 1943	Mar 1945		Sunk as target, May 1946

Otsu-class

I-48	Otsu class (29)
	Displacement:	2,135 tons (surf.) / 2,791 tons (subm.)
	Test depth:	260 ft (79 m)
	Torpedo tubes:	8 × 21‑in.
	Complement:	68
	Speed:	18 knots (surf.) / 8 knots (subm.)

Type	Ship	Keel Laid	Completed or Commissioned	Fate
				War Loss	Postwar
Type B1 Otsu gata (S37) (乙型 (S37))	I-15	Jan 1938	Sep 1940	Depth charged off San Cristobal, Nov 1942 ‡
	I-17	Apr 1938	Jan 1941	Sunk off Noumea, Aug 1943
	I-19	Mar 1938	Apr 1941	Depth charged off Makin Atoll, Nov 1943 ‡
	I-21	Jan 1939	Jul 1941	Prob. sunk by air attack off Tarawa, Nov 1943
	I-23	Dec 1938	Nov 1939	Prob. sunk off Oahu, Feb 1942 ‡
	I-25		1941	Depth charged off Espiritu Santo, Sep 1943
	I-26	Jun 1939	Nov 1941	Prob. sunk off Leyte, Oct 1944 ‡
	I-27	Feb 1942		Depth charged off Maldives, Feb 1944
	I-28	Feb 1942		Submarine off Truk, May 1942
	I-29		Feb 1942	Submarine in Luzon Strait, Jul 1944
	I-30	Jun 1939	Feb 1942	Sunk by mine off Singapore, Oct 1942
	I-31	Dec 1939	May 1942	Sunk off Attu Island, May 1943
	I-32	Jan 1940	Apr 1942	Depth charged off Wotje Atoll, Mar 1944
	I-33	Feb 1940	Jun 1942	Sunk through negligence off Kure Navy Yard, Jun 1944
	I-34	Jan 1941	Aug 1942	Torpedoed in Malacca Straits, Nov 1943
	I-35	19	19
	I-36	19	19
	I-37	19	19
	I-38	19	19
	I-39	19	19
Type B2 Otsu gata (S37B) (乙型 (S37B))	I-40	19	19
	I-41	19	19
	I-42	19	19
	I-43	19	19
	I-44	19	19
	I-45	19	19
Type B3 Otsu gata (S37C) (乙型 (S37C))	I-54	19	19
	I-55	19	19
	I-58	19	19
‡ Presumed lost with all hands

• Otsu class
  • Type B1, Otsu gata(S37) (乙型 (S37)), 20 units, I-15, I-17, I-19, I-21, I-23, I-25, I-26, I-27, I-28, I-29, I-30, I-31, I-32, I-33, I-34, I-35, I-36, I-37, I-38, I-39.
  • Type B2, Otsu gata(S37B) (乙型 (S37B)), 6 units, I-40, I-41, I-42, I-43, I-44, I-45.
  • Type B3, Otsu gata(S37C) (乙型 (S37C)), 3 units, I-54, I-55, I-58.
• Hei class
  • Type C1, Hei gata(S38) (丙型 (S38)), 5 units, I-16, I-18, I-20, I-22, I-24.
  • Type C2, Hei gata(S38B) (丙型 (S38B)), 3 units, I-46, I-47, I-48.

C3 type I-55

• • Type C3, Hei gata(S37D) (丙型 (S37D)), 3 units, I-52, I-53, I-55.
• Tei class
  • Type D1, Tei gata(S51/S51B) (丁型 (S51/S51B)), 12 units, I-361, I-362, I-363, I-364, I-365, I-366, I-367, I-368, I-369, I-370, I-371, I-372 (S51B).
  • Type D2, Tei gata kai(S51C) (丁型改 (S51C)), I-373.
• Kaidai class
  • Type KD1, Kaidai 1 gata (海大I型), I-51.
  • Type KD2, Kaidai 2 gata (海大II型), I-152 (ex-I-52).
  • Type KD3a, Kaidai 3 gata a (海大III型a), 4 units, I-153 (ex-I-53), I-154 (ex-I-54), I-155 (ex-I-55), I-158 (ex-I-58).
  • Type KD3b, Kaidai 3 gata b (海大III型b), 5 units, I-156 (ex-I-56), I-157 (ex-I-57), I-159 (ex-I-59), I-60, I-63.
  • Type KD4, Kaidai 4 gata (海大IV型), 3 units, I-61, I-162 (ex-I-62), I-164 (ex-I-64)
  • Type KD5, Kaidai 5 gata (海大V型), 3 units, I-165 (ex-I-65), I-166 (ex-I-66), I-67
  • Type KD6a, Kaidai 6 gata a (海大VI型a), 6 units, I-168 (ex-I-68), I-169 (ex-I-69), I-70, I-171 (ex-I-71), I-172 (ex-I-72), I-73.
  • Type KD6b, Kaidai 6 gata b (海大VI型b), 2 units, I-174 (ex-I-74), I-175 (ex-I-75).
  • Type KD7, Kaidai 7 gata (海大VII型), 10 units, I-176 (ex-I-76), I-177, I-178, I-179, I-180, I-181, I-182, I-183, I-184, I-185.

Sentoku type I-401

• Sentoku type, Toku gata (特型), 3 units, I-400, I-401, I-402 (I-404 not launched, I-405 not completed).
• Sentaka type, Sentaka (潜高), 3 units, I-201, I-202, I-203 (I-204 to I-208 not completed).
• Senho type, Senho (潜補), I-351 (I-352 not completed).
• Kiraisen (Mine layer) type, Kiraisen (機雷潜), 4 units I-121 (ex-I-21), I-122 (ex-I-22), I-123 (ex-I-23), I-124 (ex-I-24).
• Captured German submarines, 6 units, I-501 (ex-U-181), I-502 (ex-U-862), I-503 (ex-UIT-24, ex-Comandante Cappellini), I-504 (ex-UIT-25, ex-Luigi Torelli), I-505 (ex-U-219), I-506 (ex-U-195).

2nd Class submarines

Kaichū VI Ro-33

• Type F
  • Type F1, Ro-ichi-gata (F1型（呂一型) 2 units, Ro-1, Ro-2.
  • Type F2, Ro-san-gata (F2型（呂三型), 3 units, Ro-3, Ro-4, Ro-5.
• Kaichū type
  • Type K1, Kaichū 1 gata (海中I型), 2 units, Ro-11, Ro-12.
  • Type K2, Kaichū 2 gata (海中II型), 3 units, Ro-13, Ro-14, Ro-15.
  • Type K3, Kaichū 3 gata (海中III型), 10 units, Ro-16, Ro-17, Ro-18, Ro-19, Ro-20, Ro-21, Ro-22, Ro-23, Ro-24, Ro-25.
  • Type K4, Kaichū 4 gata (海中IV型), 3 units, Ro-26, Ro-27, Ro-28.
  • Type KT (Toku-Chū), Kaichū 5 gata (海中V型), 5 units, Ro-29,Ro-30, Submarine No. 70, Ro-31, Ro-32.
  • Type K6, Kaichū 6 gata (海中VI型), 2 units, Ro-33, Ro-34.
  • Type KS (Sen-Chū), Kaichū 7 gata (海中VII型), 18 units, Ro-35, Ro-36, Ro-37, Ro-38, Ro-39, Ro-40, Ro-41, Ro-42, Ro-43, Ro-44, Ro-45, Ro-46, Ro-47, Ro-48, Ro-49, Ro-50, Ro-55, Ro-56.
• Type L
  • Type L1, Ro go jū 1 gata (L1型), 2 units, Ro-51, Ro-52.
  • Type L2, Ro go jū 2 gata (L2型), 4 units, Ro-53, Ro-54, Ro-55, Ro-56.
  • Type L3, Ro go jū 3 gata (L3型), 3 units, Ro-57, Ro-58, Ro-59.
  • Type L4, Ro go jū 4 gata (L4型), 9 units, Ro-60, Ro-61, Ro-62, Ro-63, Ro-64, Ro-65, Ro-66, Ro-67, Ro-68.
• Ko Type, 18 units, Ro-100, Ro-101, Ro-102, Ro-103, Ro-104, Ro-105, Ro-106, Ro-107, Ro-108, Ro-109, Ro-110, Ro-111, Ro-112, Ro-113, Ro-114, Ro-115, Ro-116, Ro-117.
• Sen'yu-Shō Type, 10 units, Ha-101, Ha-102, Ha-103, Ha-104, 'Ha-105, Ha-106, Ha-107, Ha-108, Ha-109, Ha-111 (Ha-110 and Ha-112 not completed)
• Sentaka-Shō Type, 11 units, Ha-201, Ha-202, Ha-203, Ha-204, Ha-205, Ha-207, Ha-208, Ha-209, Ha-210, Ha-216 (Ha-206, Ha-211 to Ha-215, Ha-217 to Ha-279 not completed)
• Ex-German submarines, 2 units, Ro-500 (ex-U-511), Ro-501 (ex-U-1224).

3rd Class submarines

Ko-hyoteki-class submarine

• Type A Kō-hyōteki class, 101 units.
• Kairyū class, about 250 units (750 planned).
• Kaiten, about 1000 units.
• C1 type
• C2 type
• S1 type
• Kawasaki class
• S2 type
• No.71, Dai 71 gou-kan (第71号艦),71-gou

Army submarines

• Type 3 submergence transport vehicle
  • Yu 1 class
  • Yu 1001 class
  • Yu 2001 class

Other submarines

• Holland class
• modified Holland class