© 2006-2016 Bob Hackett, Sander Kingsepp and Peter CundallRevision 5
23 February 1944:
Osaka. Laid down at Hitachiís Sakurajima shipyard as
kaibokan No. 333.
24 June 1944:
Launched and named DAITO.
5 July 1944:
Reserve LtCdr Uchizaki Tsuyoshi (former CEO of CD-23)
is appointed Chief Equipping Officer.
7 August 1944:
Completed and registered in the IJN. Reserve LtCdr
Uchizaki Tsuyoshi is the Commanding Officer. Undergoes training and working up
11 September 1944:
Assigned to the General Escort Command's First
Surface Escort Division.
23 September 1944:
Convoy MI-21 departs Moji with patrol boat PB-104
(ex-Dutch Hr.Ms. VALK), auxiliary gunboat KAZAN (HUSAHAN) MARU, subchaser CH-21,
auxiliary subchasers CHa-87, CHa-92 escorting convoy MI-21, consisting of TEIKA
(ex-French CAP VARELLA), TSUYAMA, EJIRI, FUSHIMI, KEISHIN, KEIZAN, CHOSAN,
TATSUBATO, KENEI, TOYOKAWA and YOSHU MARUs and tankers SAN LUIS, SHUNTEN and
EIKYO MARUs. Later that day, having departed at 1700, the tanker RYUEI MARU and
cargo ship EIKO MARU and DAITO join the convoy from Sasebo.
28 September 1944:
TEIKA MARU is detached and arrives at Kirun.
29 September 1944:
At 1700, arrives at Takao and the convoy is
1 October 1944:
At 1700, DAITO departs Takao with kaibokan YASHIRO,
patrol boat PB-104, auxiliary gunboat KAZAN (HUSAHAN) MARU, subchaser CH-21 and
auxiliary subchasers CHa-87 and CHa-92 escorting convoy TAMA-28 consisting of
TSUYAMA, CHOSAN, MURORAN, MACASSAR, FUYUKAWA, SHINSEI, FUSHIMI, KIZAN, NANKING,
EIKO and TAISEI MARUs.
2 October 1944:
Luzon Strait. During a storm, LtCdr Frank C. Acker's
(USNA '32) USS POMFRET (SS-391) torpedoes and sinks TSUYAMA MARU at 20-50N,
121-31E. The ship is carrying 1,600 men of the Mobile 18th Infantry Regiment.
73 crewmen and 1,211 soldiers on board are KIA.
3 October 1944:
At 2000 arrives at Musa.
4 October 1944:
At 0600 departs Musa and at 1930 arrives at Lapoc Bay.
5 October 1944:
At 0700 departs Lapoc Bay and at 1230 arrives at San
6 October 1944:
At 0630 departs San Fernando. At 1915 arrives and
shelters in Lapoc Bay. Meanwhile YASHIRO suffers generator problems and is
detached to Aparri.
7 October 1944:
At 0600 departs Lapoc. Later LtCdr Henry C.
Stevenson's (USNA '30) USS ASPRO (SS-309) torpedoes and sinks MACASSAR MARU at
17-30N, 119-53E. Three crewmen, four gunners and one passenger are KIA.
8 October 1944:
At 1745, TAMA-28 arrives at North San Fernando.
FUSHIMI, FUYUKAWA and SHINSEI MARUs are detached.
11 October 1944:
At 0600, the convoy departs North San Fernando. At
1748, arrives at Masinloc anchorage.
12 October 1944:
At 1320, TAMA-28 departs Masinloc.
13 October 1944:
At 0400, arrives Manila.
15 October 1944:
At 1700 DAITO departs Manila.
18 October 1944:
At 1100 arrives at St Jacques.
22 October 1944:
At 0800 DAITO departs St Jacques escorting convoy
HI-76A consisting of tankers TAIHO, TOA and AMATO MARUs escorted by kaibokans
TSUSHIMA, CD-9, CD-16 and CD-28.
26 October 1944:
At 2016 an enemy submarine is sighted at 20-19N
27 October 1944:
At 1345 an enemy submarine is sighted at 20-42N
114-34E. Soon thereafter DAITO is likely detached. CD-16 is also detached on
this date and arrives at Mako.
29 October 1944:
DAITO arrives at Takao.
30 October 1944:
At 1600 DAITO departs Takao with destroyers HASU and
TSUGA, kaibokan CD-25 and cable ship TSURUSHIMA escorting convoy TAMO-27,
consisting of EIYO MARU (presumed), TEIKA (ex-French CAP VARELLA), DAIKO, UNZEN
MARUs and seven unidentified merchant ships.
31 October 1944:
At 0600 departs Kirun.
5 November 1944:
At 2100 TAMO-27 arrives at Moji. DAITO departs soon
6 November 1944:
At 0915 arrives at Sasebo and undertakes repairs.
10 November 1944:
Departs Sasebo and later that day arrives at Moji.
14 November 1944:
At 0600 DAITO departs Imari Bay for Singapore with
escort carrier SHINYO, destroyer KASHI, Rear Admiral Sato Tsutomu's (40)(former
CO of FUSO) Eighth Escort Convoy's flagship ETOROFU and kaibokan TSUSHIMA, KUME,
SHONAN and CD-61 escorting convoy HI-81, consisting of SHINSHU, KIBITSU, AKITSU,
MIRI, ARITA, HASHIDATE, KIMIKAWA, MAYASAN, OTOWASAN and TAIHO MARUs. HI-81 makes
an overnight stop off Goto Island.
15 November 1944:
At 0620 departs Goto Island. At 1156, LtCdr (later
Rear Admiral) Charles E. Loughlin's (USNA '33) USS QUEENFISH (SS-393) torpedoes
and sinks AKITSU MARU at 33-17N, 32-00E. 67 crewmen, 140 gunners and 2,093 of
2,500 men of the IJA's 64th Infantry Regiment are KIA. The load of IJA's 20th
Sea Raiding Battalion 104 "Maru-Ni" explosive motor boats (EMB) aboard is also
lost. That same day, DAITO is reassigned to the General Escort Command's 101st
16 November 1944:
At 1600 convoy HI-81 anchors off Korea, near Chinto
To (Strange Island).
17 November 1944:
At 0800, HI-81 departs Chinto To (Strange Island)
for Ssu Chiao Shan (in Shushan Islands near Shanghai). At 1815, LtCdr Evan T.
Shepard's (USNA '35) USS PICUDA (SS-382) torpedoes and sinks MAYASAN MARU. 56
crewmen, 194 gunners and 3,187 of 4,387 men and 204 horses of IJA's 23rd Division
At 2303, LtCdr (later Captain) Gordon W. Underwood's (USNA '32) USS SPADEFISH
(SS-411) torpedoes and sinks SHINYO at 32-59N, 123-38E. Rear Admiral (Vice
Admiral, posthumously) Ishii Shizue (former CO of CHUYO) and more than 700 men
are lost. Destroyer KASHI counter-attacks, but with uncertain results.
18 November 1944:
At 0220, CD-61 is ordered to locate and assist
SHINYO. At 0315, TSUSHIMA drops 15 depth-charges on an enemy submarine, which on
the basis of fuel oil and other debris, is claimed sunk in a report at 0426. At
0800, Rear Admiral Sato Tsutomu (40) (former CO of battleship FUSO) aboard
ETOROFU orders TSUSHIMA to proceed to the scene and take SHINYO's survivors
aboard. At 1600, HI-81 arrives off Ssu Chiao Shan (Raffles Island) E of Shanghai
and awaits the rescue escorts to rejoin.
21 November 1944:
At 0800 HI-81 departs Ssu Chiao Shan for Mako,
23 November 1944:
At 0030 the convoy temporarily anchors in the Nanji
Straits. CD-9 and CD-61 join the convoy.
25 November 1944:
At 0700 departs Nanji Straits. The convoy splits
into two sections, one heads for Singapore via Mako and the other for Luzon via
Takao. CD-25 joins the convoy, though only for two days.
26 November 1944:
At 0730 TSUSHIMA and DAITO depart Mako and at 1230
arrive at Takao with the Luzon contingent of HI-81. Some ships proceed to Luzon
the next day.
30 November 1944:
At 2104, DAITO departs Takao for Manila with
kaibokan TSUSHIMA, CD-14, CD-16, CD-46, CD-134 and minesweeper W-101, escorting
convoy TAMA-33, consisting of SHINSHU and KIBITSU MARUs.
1 December 1944:
As a result of air raids on Manila, convoy TAMA-33 is
directed to puts its troops ashore at San Fernando, Luzon. At 2205, the convoy
anchors at Pamocctan.
2 December 1944:
At 0630, the convoy departs Pamocctan for Manila
where it arrives at 2240.
5 December 1944:
At 1157, DAITO departs Takao with kaibokan CD-1,
CD-34 and CD-134, escorting convoy TAMA-35, consisting of NISSHO, ORYOKU,
ARIMASAN and KAZUURA MARUs. Later that day anchors at Chechung.
6 December 1944:
At 0058 departs and at 1815 anchors at Port San Pio
Quinto, Camiguin Island.
8 December 1944:
At 0502, departs Port San Pio Quinto. At 1411,
anchors at Calayan Island.
9 December 1944:
At 0817, departs Calayan Island.
10 December 1944:
Reassigned to the General Escort Command's First
11 December 1944:
At 2000, arrives Manila.
19 December 1944:
At 1330, DAITO departs Moji for Takao with light
cruiser KASHII, kaibokan UKURU, CD-23, CD-27, CD-51 and CD-112, escorting convoy
HI-85, consisting of tankers SERIA and SHINYU MARUs and convoy MOTA-38,
consisting of IJA landing craft depot ships HYUGA, KIBITSU, SHINSHU MARUs and
IJA transport AOBASAN MARU. The convoy hugs the continental coast on the way
23 December 1944:
At midnight, arrives off Takao.
25 December 1944:
At 1440, enters Takao port.
27 December 1944:
DAITO departs Takao for Singapore with light
cruiser KASHII and kaibokans UKURU, TSUSHIMA, CD-23, CD-27 and CD-51,
escorting convoy HI-85, then consisting of TEIHOKU (ex-French PERSEE), DAINAN,
ENKEI, YAMAZAWA, ENGEN, ENCHO, DAIGYO, OTSUSAN, FUEI, OEI, SERIA MARUs and
cargo ship SHINYU MARU.
29 December 1944:
South China Sea. At 1725, minesweeper W-101 joins
the escort of convoy HI-85.
30 December 1944:
Meanwhile convoy HI-86 departs Singapore for Moji,
the convoy consisting of fleet tanker SAN LUIS MARU and TATSUBATO, OTSUSAN,
SHOEI, KYOKUUN, EIMAN, TATEBE, YOSHU and YUSEI MARUs and BANSHU MARU No. 63,
apparently unescorted to St Jacques.
1 January 1945:
At 1720 arrives at Qui Nhon.
2 January 1945:
Departs Qui Nhon and later that day arrives at Nha
3 January 1945:
At 0730 departs Nha Trang. While proceeding south,
near the east entrance of Hainan Straits, the convoy is attacked by one PB4Y
(B-24) which approaches from astern in a glide with its motor cut. One bomb hits
TEIHOKU MARU (ex-French PERSEE), the last ship in the west column. TEIHOKU MARU
and escort TSUSHIMA are detached to Yulin for repairs. While enroute to Yulin,
they are bombed again and TSUSHIMA is damaged by a near miss.
4 January 1945:
At 1030 HI-85 arrives at Cape St. Jacques, near
Saigon. 101st Escort Group's KASHII and kaibokan DAITO, UKURU, CD-23, CD-27 and
CD-51 are detached and soon after join convoy HI-86.
9 January 1945:
At 1200 HI-86 convoy departs Cape St. Jacques
10 January 1945:
Arrives at Van Fong Bay, Indochina.
11 January 1945:
At 0800 departs Van Fong. At 2120 arrives at Qui Nhon
12 January 1945:
At 0645 departs Qui Nhon. From 1100 to 1700, in the
South China Sea, SB2C "Helldiver" dive-bombers and TBF "Avenger" torpedo-bombers
from Rear Admiral (later Admiral) Frederick T. Sherman's (USNA '10) Task Group
38.3's USS ESSEX (CV-9), USS TICONDEROGA (CV-14), USS LANGLEY (CVL-27) and the
USS SAN JACINTO (CVL-30) attack convoy HI-86.
At 1408, KASHII is attacked by SB2Cs and TBFs. She is hit starboard
amidships by a torpedo. Then two bombs aft set off her depth charge magazine.
KASHII blows up and sinks stern first at 13-50N, 109-20E taking down 621
sailors. UKURU rescues 19 survivors from KASHII at 1430 hours.
TG 38.3's planes sink YOSHU MARU with the loss of 45 crewmen and five
passengers and EIMAN MARU carrying bauxite and raw rubber. 19 crewmen and 13
gunners are KIA. The aircraft also damage fleet tanker SAN LUIS MARU, DAITO and
kaibokans UKURU and CD-27. OTSUSAN, TATEBE, KYOKUUN, YUSEI and TATSUBATO MARUs
and BANSHU MARU No. 63 are so damaged by bombs and fires they have to be beached
and become constructive total losses.
13 January 1945:
At 1430, DAITO, UKURU and CD-27 arrive at Yulin,
14 January 1945:
At 2200, DAITO, UKURU and CD-27 arrive at Samah,
15 January 1945:
Off Yulin, Hainan Island. Between 1100 and 1240, Task
Force 38's planes dive-bomb and sink empty tanker HARIMA MARU with eight
airplanes on deck and also damage DAITO. The escorts are closely grouped for
protection along the shore near the mountains and shoot down two F6F "Hellcat"
fighters as they pull up from their strafing attacks.
16 January 1945:
About 30 or 40 SB2C "Helldiver" dive-bombers and F6F
fighters make another attack, but it is directed at shore targets and no serious
damage is done to the escorts or the freighters.
17 January 1945:
Three fighters attack, but do no serious damage.
21 January 1945:
At 0300, DAITO departs Yulin for Moji with kaibokan
TSUSHIMA, UKURU and CD-27 escorting convoy YUTA-15, consisting of TEIHOKU and
MEITO MARUs. At 0500 anchors off Basuo until 2000.
22 January 1945:
At 0912 anchors off northeast Hainan Island.
23 January 1945:
At 0130, a night attack is made by a four-engine
plane on TSUSHIMA, the leading escort at 25N, 119E. A near miss causes no
damage. At 0930, the convoy is attacked at 0l-21N, 111E by a single B-24 with no
damage. A message is intercepted from this B-24 reporting the exact position and
composition of the convoy in plain language.
26 January 1945:
At 1350 temporarily anchors in Nanji Tao.
27 January 1945:
At 0630 departs Nanji Tao.
28 January 1945:
At 1935 AKISHIMA MARU with UKURU and CD-27 split from
convoy and sail on ahead.
29 January 1945:
At 2315 AKISHIMA MARU and escorts anchor at Ssu Chiao
Shan (Hsu Kung Tao).
30 January 1945:
At 1347 the rest of the convoy arrives at Ssu Chiao
Shan. At 1535 the entire convoy departs.
1 February 1945:
At 1900 arrives at Tsingtao.
6 February 1945:
At 1950 departs Tsingtao for Moji.
7 February 1945:
At 1800 arrives at Daito Wan.
8 February 1945:
At 0600 departs Daito Wan. At 1800 arrives at
9 February 1945:
At 0700 departs Kogunsan Gunto.
10 February 1945:
At 0200 arrives at Kyosai To (Koje Island) and
departs at 0700. At 1600 arrives at Moji. Later, DAITO undergoes battle damage
11 February 1945:
At 1020 DAITO, UKURU and CD-27 depart Mutsure.
12 February 1945:
At 1150 the three escorts arrive at Sasebo. All
8 March 1945:
9 March 1945:
At 0710 arrives at Moji.
10 March 1945:
At 0620 DAITO departs Moji with kaibokan UKURU
escorting convoy MOSHI-01, consisting of ABUKUMAGAWA MARU.
11 March 1945:
At 1800 CD-27 departs Sasebo and catches up with the
15 March 1945:
At 0700 arrives at Bell Buoy and later at 1225 arrives
18 March 1945:
At 0800 DAITO departs Shanghai with kaibokan UKURU and
CD-27 escorting convoy SHIMO-01, consisting of YUKIKAWA MARU and three
unidentified merchant ships.
23 March 1945:
At 0900 arrives at Katoku Suido.
24 March 1945:
At 1500 DAITO, UKURU and CD-27 depart Katoku Suido to
arrive near Moji and meets the "Hosho Maru convoy", consisting of tanker HOSHO
MARU, escorted by kaibokan UKURU and auxiliary subchaser CHa-27. The kaibokan
relieve the previous escorts CD-8, CD-32 and CD-52.
25 March 1945:
At 1800 arrives at Kokusan Gunto, Chosen.
26 March 1945:
At 2200 departs Kokusan Gunto.
E 2 April 1945:
Arrives at Yulin.
20 April 1945:
Departs Shanghai for Maizuru with kaibokan OKINAWA,
UKURU, CD-27 and CD-57 escorting the refloated KOTOBUKI MARU (ex-Italian
passenger liner CONTE VERDE). 
22 April 1945:
KOTOBUKI MARU and her escorts are attacked by ten
Consolidated B-24 "Liberators", but they score no hits. One bomber is damaged
and later forced to ditch. The convoy arrives at Tsingtao, China the same day.
25 April 1945:
Arrives at Chinkai (Chinhae) harbor, Korea. That same
day, DAITO and UKURU are reassigned to Captain Abe Tokuma's 22nd Coast Defense
Group of the General Escort Command.
8 May 1945:
SW of Mokpo, SW coast of Korea. En route from Korea to
Japan, KOTOBUKI MARU hits a mine laid by a USAAF 20th Air Force B-29
"Superfortress" heavy bomber at 34-30N, 126-09E. 
KOTOBUKI MARU arrives at Maizuru under tow. The identity and
number of her escorts are unclear.
20 May 1945
Reserve LtCdr Nishibe Sadamitsu (former CO of CD-6) is
DAITO is assigned to minesweeping duties by the Allied
16 November 1945:
Eastern Sound of Tsushima Straits. At about 1100, in
rough seas, DAITO explodes a mine, breaks in two and sinks at 33-59N, 129-35E.
Reserve LtCdr Nishibe and 25 crewmen are KIA.
20 November 1945:
Removed from the Navy List.
 On 8 Sep 1943, after the surrender of Italy, CONTE VERDE
was scuttled by her Italian crew in the Whangpoo River, Shanghai. From 1943-44,
the Japanese carried out several salvage attempts. CONTE VERDE was intended for
conversion to an escort aircraft carrier, but on 8 Aug 1944, a B-24 bomber sank
her in the Whangpoo River for a second time. In Dec 1944, the hulk was
refloated. She was later repaired enabling her to steam by own power. After
hitting a mine enroute to Japan, she was towed to Maizuru where she was bombed
on 25 July 1945 and beached in Nakata Bay, N of Higashi, Maizuru. On 13 June
1949, the wreck was refloated and began scrapping.
 Sources vary as to the date and place where KOTOBUKI MARU hit a mine.
Thanks for assistance go to Dr. Higuchi Tatsuhiro of Japan. Thanks also
go to Mr. Aki of Japan for help in identifying kaibokan COs and to Gilbert
Casse of France.
-Bob Hackett, Sander Kingsepp and Peter Cundall.