Patrol 1

31 May 1944- 3 Aug 1944

翔鶴 Shokaku

Unidentified sampan sunk by gunfire, not credited to Cavalla in JANAC

Patrol 2

30 Aug 1944- 21 Oct 1944

No Sinkings

Patrol 3

14 Nov 1944-13 Jan 1945

霜月 Shimotsuki

漢江丸 Kanko Maru

春川丸 Shusen Maru

Patrol 4

8 Feb 1945-25 Mar 1945

Patrol 5

20 Apr 1945-27 May1945

No Sinkings

Patrol 6

5 Aug 1945-12 Sep 1945

No Sinkings

4 ships, 30,298 tons, plus one small vessel of unknown tonnage not credited to Cavalla in JANAC.

JANAC - 4 ships, 34,180 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 Cavalla with 4 ships and 30,255 tons sunk, plus one small vessel of unknown tonnage.

SORG credits Cavalla with 5 ships and 34,200 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 Cavalla

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)

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.