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Sandbox 6

Page History

Title	Written	Posted	Deleted	Notes
Battle of the Atlantic#Assessment	January 2012	January 2012	February 2012	-
Table of losses: Japanese submarines WWII	February-March 2012	-	-	co-written
Table of losses: Italian submarines WWII	March 2012	-	-	-

Completed

Posted to article (Battle of the Atlantic (1939–1945)#Assessment) on 27 January 2012.

Table of Losses, Japanese submarines of WWII

The following is a tabulation of Japanese submarine losses, based on several reliable sources, though information on these losses is often uncertain. Japanese and Allied records can differ as to times, dates, locations, the identity of the attackers and of the submarines under attack, and secondary sources are variable and sometimes contradictory.

First class boats (I-)

I-1 to 58

I-100's

I-200's

I-300's

I-400's

I-500's

Second class (Ro-)

Third class (Ha-)

notes

^ Blair, Silent Victory (Bantam, 1976), p.370.
^ ^a ^b ^c Boyd, Yoshida p208
^ Fitzsimons, "I1", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1398.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p209
^ Fitzsimons, Volume 13, p.1398, says she was sunk by U.S. PT boat.
^ Fitzsimons, "I5 Volume 13, p.1400.
^ Blair, Silent Victory (Bantam, 1976), p.418.
^ Fitzsimons, "I6", Volume 13, p.1400.
^ Fitzsimons, "I12", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1401, says she disappeared in January 1945.
^ Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402, says 2 Nov.
^ ^a ^b ^c ^d ^e Fitzsimons, "I16", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1404.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Boyd, Yoshida p210
^ Blair, Silent Victory (Bantam, 1976), p.343.
^ Blair, Silent Victory (Bantam, 1976), p.476.
^ pp.231 & 233.
^ p.679.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p211
^ Or I-24; "records are not clear". Blair, Silent Victory (Bantam, 1976), p.418.
^ Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402, says 12 May. It appears this is a different I-31 than sunk off Kiska.
^ Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, puts it November 1943, & & his I-42 & I-43 dates broadly agree with Blair.
^ p.574.
^ p.647.
^ Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, dates it 28 October.
^ Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407.
^ Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, dates it 22 January.
^ Fitzsimons, "I52", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1408.
^ Fitzsimons, "I54", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1409, dates it 23 October.
^ Fitzsimons, "I54", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1409, confirms date but mis-identifies her as I-58.
^ Conway p200
^ ^a ^b ^c Fitzsimons, "I21", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407.
^ Conway pp197-199
^ Fitzsimons, "I51", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407-8.
^ Conway p197
^ Conway p197
^ Conway p198<
^ ^a ^b ^c Fitzsimons, "I53", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1408-9.
^ ^a ^b ^c ^d ^e ^f ^g ^h Boyd, Yoshida p212
^ pp.231 & 233.
^ ^a ^b ^c ^d ^e ^f ^g Fitzsimons, "I65", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1410.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Boyd, Yoshida p213
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Fitzsimons, "I68", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp1410-11.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Fitzsimons, "I76", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1412.
^ Boyd, Yoshida pp213-214
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Boyd, Yoshida p214
^ p.863.
^ p.118.
^ Blair, p.574.
^ p.560.
^ p.553.
^ p.590.
^ ^a ^b ^c ^d ^e ^f Conway p202
^ Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414; Blair makes no mention of the sinking, nor credit to Bluefish .
^ Conway p202
^ Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414; Blair makes no mention of the sinking, nor credit to Bluefish .
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Fitzsimons, "I361", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.
^ Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.
^ Blair p.778
^ Fitzsimons, "I373", p.1415, dates it 13 August 1945.
^ p.870.
^ Fitzsimons, "I361", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.
^ Conway p202
^ Blair p.229.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p215
^ Fitzsimons, Bernard, ed. "RO-35-56, 70-99, 211-227", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 20, p.2216.
^ p.602.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Boyd, Yoshida p216
^ Blair, p.833.
^ Blair, p.835. Fitzsimons, v20, p.2216, says RO-46.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Fitzsimons, Bernard, ed. "RO-100-117", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 20, p.2218.
^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Boyd, Yoshida p217
^ Blair, p.833.
^ Blair, p.833.
^ Blair, p.833.
^ Fitzsimons, p.2218, credits the loss to DDs Bell, O'Bannon, Jenkins, & Ulvert Moore 31 January 1945.
^ Blair, pp.833-4.
^ Conway p205
^ Fitzsimons, Bernard, ed. "Ha 101", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 11, p.1193.
^ Fitzsimons, Volume 11, p.1193.
^ Fitzsimons, Bernard, ed. "Ha 201", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 11, p.1193.

references

Bagnasco, E :Submarines of World War Two (1977) ISBN 0 85368 331 X
Blair, Clay, Jr. Silent Victory. New York: Bantam, 1976. ISBN 0-553-0150-6
Boyd, C, Yoshida, A. The Japanese Submarine Force and World War II (1995) Naval Institute Press.
Conway : Conways All the Worlds Fighting Ships 1922-1946 (1980) ISBN 0 85177 146 7
Fitzsimons, Bernard, ed. Encyclopedia of 20th Century Weapons & Warfare (1978) London: Phoebus
Miller, D :Submarines of the World (1991) ISBN 0 86101 562 2
Fitzsimons, "I76", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1411-2.

[[Category:Submarines of the Imperial Japanese Navy

Table of Losses, Italian submarines of WWII

1500 series

1000 series

600 series

Flutto's

Miscellaneous

References

Bagnasco, E :Submarines of World War Two (1977) ISBN 0 85368 331 X
Blair, Clay, Jr. Silent Victory. New York: Bantam, 1976. ISBN 0-553-0150-6
Conway : Conways All the Worlds Fighting Ships 1922-1946 (1980) ISBN 0 85177 146 7
Miller, D :Submarines of the World (1991) ISBN 0 86101 562 2

[[Category:World War II submarines of Italy

Table of Losses, British submarines of WWII

Rough table

**British submarine losses in World war II: S class**
Group	Number built	Lost	BU post-war	Other
First group	4	3	1	-
Second group	8	6	2	-
Third group	33	9	21	2 lost post-war

**British submarine losses in World war II: T class**
Group	Number built	Lost	BU post-war	Other
First group	15	9	5	1 lost post war
Second group	16	6	7	3 lost post war
Third group	22	0	17	5 transferred

**British submarine losses in World war II: U class**
Group	Number built	Lost	BU post-war	Other
First group	3	2	1	-
Second group	46	18	24	-
Third group	22	0	18	4 transferred

References

Conway : Conways All the Worlds Fighting Ships 1922-1946 (1980) ISBN 0 85177 146 7 (pp.47-49)

External links

service histories WWII; G Mason, navalhistory.net
Allied warships; G Helgarson, uboat.net

[1] Blair, Silent Victory (Bantam, 1976), p.370.

[BY_p208-2] Boyd, Yoshida p208

[3] Fitzsimons, "I1", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1398.

[BY_p209-4] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p209

[5] Fitzsimons, Volume 13, p.1398, says she was sunk by U.S. PT boat.

[6] Fitzsimons, "I5 Volume 13, p.1400.

[7] Blair, Silent Victory (Bantam, 1976), p.418.

[8] Fitzsimons, "I6", Volume 13, p.1400.

[9] Fitzsimons, "I12", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1401, says she disappeared in January 1945.

[10] Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402, says 2 Nov.

[Fitz_I16-11] Fitzsimons, "I16", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1404.

[Fitz_I15-12] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402.

[BY_p210-13] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p Boyd, Yoshida p210

[14] Blair, Silent Victory (Bantam, 1976), p.343.

[15] Blair, Silent Victory (Bantam, 1976), p.476.

[16] .231 & 233.

[17] .679.

[BY_p211-18] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p211

[19] Or I-24; "records are not clear". Blair, Silent Victory (Bantam, 1976), p.418.

[20] Fitzsimons, "I15", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1402, says 12 May. It appears this is a different I-31 than sunk off Kiska.

[21] Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, puts it November 1943, & & his I-42 & I-43 dates broadly agree with Blair.

[22] .574.

[23] .647.

[24] Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, dates it 28 October.

[25] Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407.

[26] Fitzsimons, "I40", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407, dates it 22 January.

[27] Fitzsimons, "I52", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1408.

[28] Fitzsimons, "I54", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1409, dates it 23 October.

[29] Fitzsimons, "I54", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1409, confirms date but mis-identifies her as I-58.

[30] Conway p200

[Fitz_I21-31] Fitzsimons, "I21", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407.

[32] Conway pp197-199

[33] Fitzsimons, "I51", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1407-8.

[34] Conway p197

[35] Conway p197

[36] Conway p198<

[Fitz_I53-37] Fitzsimons, "I53", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp.1408-9.

[BY_p212-38] ^ ^a ^b ^c ^d ^e ^f ^g ^h Boyd, Yoshida p212

[39] .231 & 233.

[Fitz_I65-40] ^ ^a ^b ^c ^d ^e ^f ^g Fitzsimons, "I65", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1410.

[BY_p213-41] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Boyd, Yoshida p213

[Fitz_I68-42] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Fitzsimons, "I68", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, pp1410-11.

[Fitz_I76-43] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j Fitzsimons, "I76", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1412.

[44] Boyd, Yoshida pp213-214

[BY_p214-45] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Boyd, Yoshida p214

[46] .863.

[47] .118.

[48] Blair, p.574.

[49] .560.

[50] .553.

[51] .590.

[C_p202-52] ^ ^a ^b ^c ^d ^e ^f Conway p202

[53] Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414; Blair makes no mention of the sinking, nor credit to Bluefish .

[54] Conway p202

[55] Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414; Blair makes no mention of the sinking, nor credit to Bluefish .

[Fitz_I361-56] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l Fitzsimons, "I361", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.

[57] Fitzsimons, "I351", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.

[58] Blair p.778

[59] Fitzsimons, "I373", p.1415, dates it 13 August 1945.

[60] .870.

[61] Fitzsimons, "I361", in Encyclopedia of 20th Century Weapons & Warfare, Volume 13, p.1414.

[62] Conway p202

[63] Blair p.229.

[BY_p215-64] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m Boyd, Yoshida p215

[Fitz_p2216-65] Fitzsimons, Bernard, ed. "RO-35-56, 70-99, 211-227", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 20, p.2216.

[66] .602.

[BY_p216-67] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q ^r Boyd, Yoshida p216

[68] Blair, p.833.

[69] Blair, p.835. Fitzsimons, v20, p.2216, says RO-46.

[Fitz_p2218-70] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ Fitzsimons, Bernard, ed. "RO-100-117", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 20, p.2218.

[BY_p217-71] ^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ ^j ^k ^l ^m ⁿ ^o ^p ^q Boyd, Yoshida p217

[72] Blair, p.833.

[73] Blair, p.833.

[74] Blair, p.833.

[75] Fitzsimons, p.2218, credits the loss to DDs Bell, O'Bannon, Jenkins, & Ulvert Moore 31 January 1945.

[76] Blair, pp.833-4.

[77] Conway p205

[78] Fitzsimons, Bernard, ed. "Ha 101", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 11, p.1193.

[79] Fitzsimons, Volume 11, p.1193.

[80] Fitzsimons, Bernard, ed. "Ha 201", in Encyclopedia of 20th Century Weapons & Warfare (London: Phoebus, 1978), Volume 11, p.1193.

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Name	Class	Date of Loss	Location	Sunk by…	Notes
I-1	J1	29 Jan 1943	Guadalcanal	Kiwi, Moa	Blair^[1] :BY^[2]
I-1	A M	c	d	e	replacement; incomplete at wars end
I-2	J1	7 Apr 1944	Admiralty Is	ASW USS Saufley	Fitzsimons^[3] :BY^[2]
I-3	J1	9 Dec 1942	Guadalcanal	ASW PT-59	:BY^[2]
I-4	J1	25 Dec 1942	Rabaul	USS Seadragon	:BY^[4] Fitzsimons^[5]
I-5	J1 M	19 July 1944	Saipan	USS Wyman	Fitzsimons^[6] :BY^[4]
I-6	J2	?14.7.44/?13.7.44	?Saipan	?USS William C. Miller, USS Gilmer	missing after15 6.44 :BY^[4]
I-7	J3	22 June 1943	Kiska	USS Monaghan & scuttling/ grounded following gun battle & scuttled	Blair^[7]/:BY^[4] Fitzsimons^[8]
I-8	J3	31 Mar 1945	Okinawa	USS Stockton, USS Morrison	:BY^[4]
I-9	A1	?11or15.6.43/ 13.6.43	? /Kiska	? /USS Frazier	Conway/ :BY^[4]
I-10	A1	4 July 1944	Saipan	USS David W. Taylor, USS Riddle	:BY^[4]
I-11	A1	11 Jan 1944	? Funafuti, Gilbert Is	e	lost, unknown cause :BY^[4]
I-12	A2	>5.1.44/ 13.11.44	?Samoa/ Kauai	?/ USCGC Rockford, USS Ardent	Conway/ Boyd, Yoshida^[9] :BY^[4]
I-13	A M	16.7.45/ >11.7.45, ?16.7.45	?/ ?Yokosuka	? /?USS Lawrence C. Taylor, aircraft USS Anzio	Conway/ :BY^[4]
I-14	A M	c	d	e	survived :BY^[4]
I-15	B1	10.11.42/ >3.11.42	?/ Guadalcanal	?/ missing	Conway? :BY^[4] :2 Nov Fitzsimons^[10]
I-15	A M	c	d	e	replacement incomplete at wars end
I-16	C1	19 May 1944	Bougainville	USS England	:BY^[4]; date confirmed by Conway, Fitzsimons^[11]
I-17	B1	19 August 1943			Fitzsimons^[12]
I-17 (alternate)	B1	19 Aug 1943	Noumea	HMNZS Tui, US aircraft	BY^[13]
I-18		December 1942		USS Grayback	Blair^[14]
I-18(alternate)	C1	11 Feb 1943	Eastern Solomons	USS Fletcher	Fitzsimons^[11]: C/ :BY^[13]
I-19	B1	25 November 1943	?en route to Pearl Harbor	?USS Radford	probable; last report 17 Nov 43 :BY^[13] date confirmed by Fitzsimons^[12]
I-20	C	10 October 1944	?Espiritu Santo	USS Saufley	probable; last report 30 Aug 43 :BY^[13] date given by Fitzsimons^[11]
I-21	B1	29 November 1943	Gilbert Is	lost, unknown cause	:BY^[13] Fitzsimons^[12]
I-22	C	1 October 1942	E Solomons	lost, cause unknown	date given by Fitzsimons^[11] /last report 4 Oct 42 :BY^[13] (C = 5 Oct or 4 Nov)
I-23	B1	14 February 1942	Oahu	lost, cause unknown	:BY^[13] Fitzsimons^[12]
I-24		27 July 1943	New Guinea?	USS Scamp	Blair^[15]
I-24 (alternate)	C1	11 June 1943 Fitzsimons^[11]	?/Near Is, Aleutians	?/PC-487	Conway/:BY^[13]
I-25	B1	3 September 1943	?Espiritu Santo	?USS Patterson	probable; no report after 24 Aug 43 :BY^[13] Date given by Fitzsimons^[12]
I-26	B1	25 October 1944	Leyte	USS Richard M. Rowell	probable; last report 25 Oct 43 :BY^[13] Loss confirmed by Fitzsimons^[12]
I-27	B1	12 February 1942	Maldive Is	HMS Paladin, HMS Petard	:BY^[13] loss confirmed by Fitzsimons^[12]
I-28		17 May 1942	Truk	USS Tautog	Blair^[16] :BY^[13]
I-29		26 July 1944		USS Tilefish	Blair^[17]Fitzsimons^[12]
I-29(alternate)	B1	26 July 1944	South China Sea	USS Sawfish	:BY^[18]
I-30	B1	13 October 1942	Singapore	mine	:BY^[18]. date confirmed by Fitzsimons^[12]
I-31		August 1943	Kiska	USN destroyer depth charges	Blair^[19]
I-31(alternate)	B1	13.6.43/13.5.43	/Attu	/USS Edwards, USS Farragut	Conway/:BY^[18] Fitzsimons says 12 May 43^[20]
I-32	B1	24 April 1944	Wotje	ASW US hunter-killer group	:BY^[18]; date confirmed by Fitzsimons^[12]
I-33(1st)	B1	26 Sep 1942	Truk	accidental loss	raised and repaired. :BY^[18]
I-33	B1	13 June 1944	Inland Sea	accidental loss	:BY^[18]; loss confirmed by Fitzsimons^[12]
I-34	B1	13 November 1943	Penang	HMS Taurus	:BY^[18]; date confirmed by Fitzsimons^[12]
I-35	B1	13 November 1943	Tarawa	USS Frazier, USS Meade	:BY^[18]; date confirmed by Fitzsimons^[12]
I-36	B1	c	e	f	survived. :BY^[18]
I-37	B1	19 November 1944	Palau	USS Conklin, USS McCoy Reynolds	:BY^[18]. date confirmed by Fitzsimons^[12]
I-38	B1	12 November 1944	Palau	USS Nicholas	:BY^[18]; date confirmed by Fitzsimons^[12]
I-39	B1	26 November 1943	Makin I.	?USS Boyd	probable :BY^[18]; date confirmed by Fitzsimons^[12]
I-40	B2	29.11.43 to 3.12.43 c/ 25.11.43 BY	Truk	USS Radford	probable; last contact 22.11.44. :BY^[18] Loss confirmed by Fitzsimons ^[21]
I-41	B2	28.11.44 c/ 18.11.44 by	Samar	USS Lawrence C. Taylor, aircraft USS Anzio	Conway/ BY
I-42		23 March 1944	Palaus	USS Tunny	Blair^[22]
I-43		15 February 1944		USS Aspro	Blair^[23]
I-44	B2	29.4.45	Okinawa	Allied aircraft
I-45	B2	28.10.44	Leyte	USS Whitehurst
I-46	C2	>27.10.44	?Leyte	?USS Helm	probable; last report 26.10.44^[24]
I-47	C2	c	d	e	survived (scuttled postwar)^[25]
I-48	C2	23.1.45 c/ 22.1.45^[26]	Ulithi, Carolines	USS Conklin, USS Corbesier, USS Raby	Conway/ BY
I-49,I-50	b	c	d	e	not assigned
I-51	b	c	d	e	not re-assigned
I-52	C3	24.6.44	Atlantic	Allied aircraft
I-53	C3	c	d	e	survived (scuttled postwar)^[27]
I-54	B3	28.10.44^[28]	Leyte	USS Helm, USS Gridley
I-55	28.7.44	C3	Marianas	USS Wyman	probable; last report 14.7.44
I-56	B3	18.4.45	Okinawa	US destroyers	^[29]
I-57	b	c	d	e	not assigned
I-58	B3	c	d	e	survived

Name	Class	Date of Loss	Location	Sunk by…	Notes
original I-21 to I-24	KRS's	after May 1942	d	e	re-numbered 1-121 to 1-124 :C^[30]
I-121	KRS	January 1942			Fitzsimons^[31]
I-121 (alternate)	KRS	c	d	e	survived C /:BY^[13]
I-122	KRS	10 June 1945	Sea of Japan	USS Skate	:BY^[13] loss confirmed by Fitzsimons ^[31]
I-123	KRS	28 August 1942	Savo I.	USS Gamble	:BY^[13] date confirmed by Fitzsimons^[31]
I-24	KRS	20.1.42	Darwin	HMAS Deloraine, USS Edsall	(aka I-124 lost before re-naming):BY^[13]
original I-51 to I-85	KD's	prior to May 1942	d	e	re-numbered 1-151 to 1-185 :C^[32]
I-51	KD1	c	d	e	withdrawn from service 1940:Fitzsimons^[33] sold 1941 C^[34]
I-52	KD2	c	d	e	aka I-152; survived :C^[35]
153 to 159	(KD3a, KD3b)	1940	d	relegated to training	survived :C^[36]
I-53 (I-153)	KD3a	c	d	e	training july 42, renumberd, survived :C (53 to 59)
I-54 (I-154)	KD3a	c	d	e
I-55 (I-155)	KD3a	c	d	e
I-56 (I-156)	KD3b	c	d	e
I-57 (I-157)	KD3b	c	d	e
I-58 (I-158)	KD3a	c	d	e
I-59 (I-159)	KD3b	c	d	e
I-60	KD3A or KD3B	17 January 1942	Krakatoa	HMS Jupiter	Fitzsimons^[37] :BY^[38]
I-61	KD4	c	d	e	sunk in collision 1941, raised and scrapped C //2.10.41 collision :BY^[38]
I-62(I-162)	KD4	c	d	e	= 162, training; survived :BY^[38]
I-63(alt)	KD3b	c	d	e	sunk in collision with I-60, 1939, raised and scrapped 1940 C 2.2.39 collision :BY^[38]
I-63	KD3A or KD3B	2 February 1939			collision with I-60 Fitzsimons^[37] :BY^[38]
61, 64, 67, 70,	KD3A or KD3B	May 1942	d	e	renumbered and withdrawn (scrapped or scuttled postwar) Fitzsimons^[37]
I-64		17 May 1942	en route between Sasebo & Kwajalein	Triton	Blair^[39] :BY^[38]
I-65 (I-165)	KD5	27 June 1945 :Fitz^[40]	Saipan	bomb, U.S. aircraft :Fitz^[40]	renumbered I-165 20 May 1942 :Fitz^[40] :BY^[38]
I-66(I-166)	KD5	17 July 1944^[40]	Malacca BY	HMS Telemachus :Fitz^[40]	renumbered I-166 20 May 1942 :Fitz^[40] :BY^[38]
I-67	KD5	29.8.40	d	e	accidental loss on exercises Aug 1940 :Fitz^[40] :BY^[41]
I-68	KD6a	27 July 1943 :Fitz^[42]	Rabaul	torpedo, Scamp	renumbered I-168 20 May 1942 :Fitz^[42] :BY^[41]
I-69	KD6a	4.4.44 :Fitz^[42]	Truk	diving accident during air raid	renumbered I-169 20 May 1942 :Fitz^[42] :BY^[41]
I-70	KD6a	10.12.41 :Fitz^[42]	Pearl Harbor/Oahu	aircraft USS Enterprise	renumbered I-170 20 May 1942 :Fitz^[42] :BY^[41]
I-71)	KD6a	1.2.44 :Fitz^[42]	Rabaul	USS Guest, USS Hudson	renumbered I-171 20 May 1942 :Fitz^[42] :BY^[41]
I-72	KD6a	11 November 1942 :Fitz^[42]	San Cristobal	USS Southard	renumbered I-172 20 May 1942 :Fitz^[42] :BY^[41]
I-73	KD6a	27.1.42	Midway	USS Gudgeon	renumbered I-173 20 May 1942 :Fitz^[42] :BY^[41]
I-74	KD6b	12.4.44C/29.4.44 BY	Truk	USS McDonough, USS Stephen Potter	probable; contact lost after 10 April 1944 :BY^[41] :renumbered I-174 20 May 1942 :Fitz^[42]
I-75	KD6b	1 February 1944 :Fitz^[42]	Wotje	USS Charrette, USS Fair	renumbered I-175 20 May 1942: Fitz^[42] first Japanese submarine lost to Hedgehog; :BY^[41]
I-76	KD7	16or17.5.44C/16.5.44 BY	Bougainville	USS Haggard, USS Franks	renumbered I-176 20 May 1942: Fitz^[43] :BY^[41]
I-77	KD7	?3.10.44C/3.10.44 BY	Palau	USS Samuel S. Miles	renumbered I-177 20 May 1942 :Fitz^[43] :BY^[41]
I-78	KD7	?28.5.43	d	e	lost en route from Truk to E Australia. Last report 17.6.43; renumbered I-178 20 May 1942:Fitz^[43] :BY^[41]
I-79	KD7	14.7.43	Inland Sea	e	lost; foundered on training exerciseC/ accident during trials :BY^[41] ; renumbered I-179 20 May 1942: Fitz^[43]
I-80	KD7	26.4.44	Kodiak	USS Gilmore	renumbered I-180 20 May 1942:Fitz^[43] :BY^[41]
I-81	KD7	?16.1.44	New Britain	US warships	renumbered I-181 20 May 1942:Fitz^[43] :BY^[41] :BY^[41]
I-82	KD7	?1.9.43C/3.9.43 BY	Espiritu Santo	US destroyers	renumbered I-182 20 May 1942:Fitz^[43] :BY^[41]
I-83	KD7	28or29.4.44C/28 BY	Kyushu	USS Pogy	renumbered I-183 20 May 1942:Fitz^[43] :BY^[44]
I-84	KD7	?19.6.44C/19 BY		aircraft USS Suwanee	renumbered I-184 20 May 1942:Fitz^[43] :BY^[45]
I-85	KD7	?22.6.44C/22 BY	Saipan	USS Newcomb, USS Chandler	renumbered I-185 20 May 1942:Fitz^[43] :BY^[45]
I-122		1944	Sea of Japan	Shark	Blair^[46]
I-173		27 January 1942	between Midway & Kwajalein	Gudgeon	First major Japanese man of war sunk in WW2, & first sunk directly due to radio intelligence. Blair^[47]
I-176					Sank USS Corvina, which had been detailed to sink her.^[48]
I-175		1944	Marshalls		Blair^[49]
I-182		1943	Kiska	USS Scamp	Blair^[50]
I-183		28 April 1944	Bungo Suido	USS Pogy	Blair^[51]

Name	Class	Date of Loss	Location	Sunk by…	Notes
I-201	ST	c	d	e	survived; surrendered :C^[52]
I-202	ST	c	d	e	survived; surrendered: C^[52]
I-203	ST	c	d	e	survived; surrendered: C^[52]
I-204	ST	c	d	e	incomplete at wars end: C^[52]
I-205	ST	c	d	e	incomplete at wars end: C^[52]
I-206	ST	c	d	e	incomplete at wars end: C^[52]

Name	Class	Date of Loss	Location	Sunk by…	Notes
I-351	SH	14 July 1945	Borneo	USS Bluefish	Fitzsimons^[53]:BY^[45]
I-352	SH	22 June 1945	?	U.S. aircraft	still incomplete C^[54]:Fitzsimons^[55]
I-361	D1	30 May 1945	Okinawa	aircraft, USS Anzio	Fitzsimons^[56] :BY^[45]
I-362	D1	13/18 Jan 1945	E Carolines	ASW USS Fleming	Fitzsimons^[56] :BY^[45]
I-363	D1	20 /10/45			survived BY^[45]; reported lost by Fitzsimons^[56]
I-364	D1	14/16 Sept 44	Honshu	torpedo USS Sea Devil	Fitzsimons^[56] :BY^[45]
I-365	D1	28 Nov 1944^[57]	Empire (off Tokyo Bay)	USS Scabbardfish	Blair^[58]: Fitzsimons^[56] :BY^[45]
I-366	D1				surrendered. Fitzsimons^[56] :BY^[45]
I-367	D1				surrendered. Fitzsimons^[56] :BY^[45]
I-368	D1	27/2/ 1945		USS Bluefish	Fitzsimons^[56]
I-338(alternate)	D1	27.2.1945	Iwo Jima	aircraft, USS Anzio	:BY^[45]
I-369	D1				surrendered. Fitzsimons^[56] :BY^[45]
I-370	D1	26/2/45	Iwo Jima	ASW USS Finnegan	Fitzsimons^[56] :BY^[45]
I-371	D1	?24/2/45	Kyushu	USS ;;Lagarto	probable; last report 31 Jan 45.BY^[45] loss confirmed by Fitzsimons^[56]
I-372	D1	18/7/45	Yokosuka	air raid	Fitzsimons^[56]
I-373	D2	1944^[59]	Okinawa	USS Spikefish	Blair^[60]
I-374	D2	stopped incomplete 3/45			scrapped^[61] :C^[62]

Name	Class	Date of Loss	Location	Sunk by…	Notes
I-400	STO	c	d	e	survived; surrendered
I-401	STO	c	d	e	survived; surrendered
I-402	STO	c	d	e	survived; surrendered
I-403	STO	c	d	e	cancelled 1945
I-404	STO	c	d	e	incomplete at wars end
I-405	STO	c	d	e	incomplete at wars end