IJN Submarine HA-106:
Tabular Record of Movement
© 2006-2015 Bob Hackett & Sander Kingsepp Revision 2
1 July 1944:
Tanagawa. Laid down and launched at Kawasaki's
Senshu Works as Sensuikan Yu Sho (Small Supply Submarine) No. 4606, (SS) Type.
30 October 1944:
Launched and numbered HA-106
6 November 1944:
Lt Okakita Akimasa (69)(former CO of RO-67) is
appointed Chief Equipping Officer.
15 December 1944:
Kobe. Completed and commissioned in the IJN.
Assigned to SubRon 11. Attached to Kure Naval District. Lt Okakita is the
30 December 1944:
Directly attached to Grand Escort Command HQ.
Participates in kaibokan crew ASW training in Inland Sea as the target vessel.
20 January 1945:
HA-106 conducts torpedo attack training with IJN
453rd Naval Air Group and light carrier HOSHO.
5 March 1945:
Attached to the Fifth Air Fleet HQ.
8 March 1945:
Departs Kanoya to perform lifeguard duty off
Minami-Daito-Jima (South Borodino Island) in
Operation TAN No. 2. HA-106 mission is to cruise off Minami Daito Jima to
pick up ditched aircrews.
10 March 1945:
Reassigned to SubDiv 33 for training purposes.
11 March 1945:
Participates in Operation TAN No. 2. It is uncertain
whether HA-106 rescued any downed IJNAF aviators, but she returns to Kanoya the
same day, then returns to her station in the Minami-Daito Jima area for two
13 March 1945:
Returns to Kanoya.
20 April 1945:
Lt Tateyama Takashi (71)(former navigating officer
of RO-109) is appointed CO.
Commences conversion to a midget submarine tender.
Transferred to Ourazaki area near Kure. Commences
preparations for a one-way sortie against the American fleet from Saeki, then
proceeds to Kure.
2 September 1945:
Tokyo Bay. Formal surrender ceremonies, presided
over by the Supreme Allied Commander Pacific, General of the Army Douglas
MacArthur (MOH), are held aboard the USS MISSOURI (BB-63).
Kure. HA-106 is surrendered to the Allies.
The U.S. Fifth Marine Division occupies Sasebo.
2 November 1945:
HA-106 is assigned to Japanese Submarine Division
Two under Cdr (later Captain) John P. Currie with HA-103, -105, -107, -108,
HA-109 and HA-111.
Kure. HA-106 and all Japanese submarines at Kure are
ordered to proceed to Sasebo, through mine-infested waters.
30 November 1945:
Removed from the Navy List.
26 March 1946:
Washington, DC. At a Submarine Officer's Conference,
attended by former ComSubPac Vice Admiral Charles A. Lockwood, it is decided to
dispose of all remaining captured Japanese submarines by sinking.
1 April 1946: Operation "Road's End":
Goto Islands near Sasebo.
HA-106, secured to I-36, is scuttled by the USN at 1558 just beyond the
100-fathom line at 32-37N, 129-17E.
Special thanks for help in preparing this TROM go to Dr.
Higuchi Tatsuhiro of Japan and Mr. Derek Waller of the UK.
– Bob Hackett and Sander Kingsepp.
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