Patrol 1

28 Aug 1942-20 Oct 1942

No ships sunk; 3 ships damaged

Patrol 2

11 Nov 1942-20 Dec 1942

(transport claimed)

天龍 Tenryu

Patrol 3

20 Jan 1943-11 Mar 1943

"Unknown Frigate" credited to Albacore in JANAC - sinking not confirmed in Alden and Japanese sources)

大潮 Oshio

Patrol 4

4 Apr 1943-26 May 1943

Patrol 5

16 Jun 1943-31 Jul 1943

Patrol 6

23 Aug 1943-26 Sep 1943

平壌丸 Heijo Maru

Patrol 7

12 Oct 1943-5 Dec 1943

乾山丸 Kenzan Maru

Patrol 8

26 Dec 1943-22 Feb 1944

第二号長江丸 Choko Maru #2

Hayabusa-Tei #4 (small vessel often not included in sinkings, and not credited to Albacore in JANAC)

漣 Sasanami

Patrol 9

29 May 1944-16 Jul 1944

大鳳 Taiho

Taiei Maru (small vessel often not included in sinkings, and not credited to Albacore in JANAC)

Patrol 10

6 Aug 1944-25 Sep 1944

新月丸 Shingetsu Maru (listed as Niizuki Maru in Alden)

＃３江口丸 Eguchi Maru #3 (small Japanese Naval vessel often not included in sinkings, and not credited to Albacore in JANAC)

Cha-165 - Credited to Albacore in JANAC, but was only damaged and survived the war.

Patrol 11

28 Oct 1944-7 Nov 1944 (lost)

Current research credits Albacore with sinking 11 ships of 50,362 tons, including three small vessels (Hayabusa-Tei #4,Eguchi Maru #3, and Taiei Maru) totalling 354 tons which were not credited to Albacore in JANAC. These figures do not include the "UNKNOWN" frigate listed in JANAC as sunk on Albacore's Third Patrol, but not confirmed in Alden or Japanese sources, and Submarine Chaser 165 (Cha-165), credited to Albacore in JANAC, but was only damaged and survived the war.

JANAC - 10 ships, 49,861 tons. Note that the criteria JANAC used included all Japanese Naval vessels (although JANAC did not usually count warships less than 500 tons that were converted from merchant ships) and all Japanese merchant vessels of 500 or more gross tons known or believed to have been lost during the war. Differences between JANAC figures and current research are noted above.

Alden-McDonald credit Albacore with 11 ships and 48,208 tons sunk (Cha-165 is not credited to Albacore).

SORG credits Albacore with 12 ships and 72,300 tons sunk, plus 6 ship damaged, 30,900 tons.

Wrecksite credits Albacore with 12 ships and 55,153 tons sunk.

Japanese Naval and Merchant Ship Losses - JANAC on the NHHC website

JANAC on the Hyperwar website - https://www.ibiblio.org/hyperwar/Japan/IJN/JANAC-Losses/JANAC-Losses-6.html

SORG- http://archive.hnsa.org/doc/subreports-sorg.htm (Excel spreadsheet download)

Archives of the Pacific Fleet Submarine Museum (PFSM)

War Patrol Reports - USS Albacore - https://issuu.com/hnsa/docs/ss-218_albacore_part1; https://issuu.com/hnsa/docs/ss-218_albacore_part2

Monthly Losses of Combatant and Non-Combatant Vessels

太平洋戦争時の喪失船舶明細表（汽船主体）- Lost Vessel table during the Pacific War (merchant vessels)

Alden, John D., and McDonald, Craig R. - U.S. & Allied Sub Successes in the Pacific & Far East during WWII - Fourth Edition, 2009

Cressman, Robert - The Official Chronology of the U.S. Navy in World War II, Naval Institute Press, 2000.

Wrecksite - https://www.wrecksite.eu/wrecksite.aspx

Miramar Ship Index - https://www.miramarshipindex.nz/

Imperial Japanese Navy Page - http://www.combinedfleet.com/

Wikipedia Japan - https://ja.wikipedia.org/wiki/アルバコア_(SS-218)

Japan Center for Asian Historical Records - National Archives of Japan - https://www.jacar.go.jp/index.html

Official U.S. Navy Photos - Naval History & Heritage Command

Archives of the Pacific Fleet Submarine Museum (PFSM)

Imperial Japanese Navy Page - http://www.combinedfleet.com/

Japanese Merchant Ship photos - Wrecksite - copyright owners retain all rights. Photos used on this site will be taken down should the owner request their removal.

On individual ship pages, "Attack No." refers to the number assigned to the submarine attack by authors John D. Alden and Craig R. McDonald as shown in their work, United States and Allied Submarine Successes in the Pacific and Far East During World War II - Fourth Edition, McFarland & Company, Inc., Jefferson, North Carolina, and London, 2009.

The number is a unique identifier from the source of data that is the basis of this website.