Patrol 1

6 Jan 1944-29 Feb 1944

吉田丸 Yoshida Maru

大新丸 Taishin Maru

民領丸 Minryo Maru

北安丸 Hokuan Maru

Patrol 2

15 July 1944-8 Sep 1944

タユール Tahure (Vichy French)

ソン・ジャン Song Giang (Vichy French)

帝仙丸 Teisen Maru

Patrol 3

20 1944- 1944

日邦丸 Nippo Maru

第二号興東丸 Koto Maru No. 2

大井 Oi

大鳥山丸 Otoriyama Maru

Patrol 4

4 Apr 1944-26 May 1944

西貢丸 Saigon Maru

うらる丸 Ural Maru

大敏丸 Taibin Maru

Patrol 5

16 1944-31 1944

岸波 Kishinami

Iwanami (listed in JANAC - no destroyer of this name in IJN; probably second attack on Kishinami)

八紘丸 Hakko Maru

御室山丸 Omurosan Maru

音羽山丸 Otowasan Maru

ありた丸 Arita Maru

Patrol 6

23 1945-3 Apr 1945

黄浦丸 Koho Maru

20 ships, 98,131 tons (does not include Iwanami)

JANAC - 21 ships, 100,231 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 Flasher with ships and tons sunk.

SORG credits Flasher with ships and tons sunk, plus ship damaged, tons.

Wrecksite credits Flasher with ships and 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 Flasher -

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/

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.