© 2007-2017 Bob Hackett and Peter Cundall
1 November 1943:
Nagasaki. Laid down at Mitsubishi Heavy Industriesí
11 January 1944:
Launched and numbered CD-20.
29 February 1944:
Reserve LtCdr Kawamoto Genzo (former Chief
Equipping Officer of CD-8) is appointed the CO of CD-8 and the CEO of CD-20 as
an additional duty.
1 March 1944:
Reserve Lt (promoted LtCdr 1 May; Cdr, posthumously)
Kuwabara Madoka (former mine officer of ITSUKUSHIMA) is appointed the CEO.
11 March 1944:
Completed and registered in the IJN. Reserve Lt
Kuwabara Madoka is the CO.
9 April 1944:
At 0800 departs Kure and at 1800 arrives at Moji.
13 April 1944:
At 2355, departs Moji in convoy MOTA-17 consisting of
MANSHU, FUKUYO, TEIKAI (ex-German FULDA), KANAN and TEIKA (ex-French CAP
VARELLA) MARUs escorted by destroyer ASAKAZE, minesweeper W-22 and kaibokan
14 April 1944:
At 1748, arrives Chinkai (Chinhae), Korea, where the
convoy is dissolved. These ships subsequently formed part of the "Take" convoy.
16 April 1944:
At 1000 departs Chinkai with CD-20, minelayer
SHIRATAKA, and auxiliary minesweeper TAMA MARU No. 7 escorting the "Take"
convoy (MOTA-17) - see 21 April for details.
18 April 1944:
At 1400 arrives at Ssu Chiao Shan.
19 April 1944:
At 1200 departs Ssu Chiao Shan.
21 April 1944:
CD-20 steams to Tungchiaoshan (Tangjiqiozshan) near
Shanghai, where the escort joins the "Take" convoy consisting of transports
KAZUURA, MITSUKI, BRAZIL, TENSHINZAN (AMATSUSAN), ADEN, TAJIMA, YOZAN, MANSHU,
FUKUYO, TEIKAI (ex-German FULDA), KANAN, TEIKA (ex-French CAP VARELLA) MARUs and
UNKAI MARU No. 12 and YOSHIDA MARU No. 1 and an unidentified merchant ship
escorted by minelayer SHIRATAKA, destroyers ASAKAZE, SHIRATSUYU, KURI and
FUJINAMI, kaibokan CD-22, KURAHASHI, minesweeper W-22, subchasers CH-37, CH-38,
gunboats UJI, ATAKA and auxiliary minesweeper TAMA MARU No. 7.
26 April 1944:
Off NW Luzon, Philippines. LtCdr (later Rear Admiral)
Thomas M. Dykers' (USNA '27) USS JACK (SS-259) intercepts the convoy. Dykers
makes three separate attacks and fires 18 torpedoes at the convoy. At about
0600, from two to four torpedoes hit YOSHIDA MARU No. 1 portside. She breaks in
two and sinks quickly at 18-06N, 119-40E, taking down 61 crewmen,
two passengers and 2586 of 3400 soldiers of the IJA's 210th Infantry Regiment
including its CO.
Tokyo. Prime Minister and Army General Tojo Hideki learns of the losses
inflicted upon convoy "Take" No. 1. Fearing further attacks by American
skip-bombers, like those suffered earlier in the Battle of the Bismarck Sea,
Tojo orders the convoy diverted from Manokwari, New Guinea to Halmahera,
27 April 1944:
At 1200 arrives Manila and detaches from "Take".
28 April 1944:
Both KURAHASHI (the followoing morning) and at 2200,
CD-20 leave Manila to meet up with HI-59, consisting of tankers OKIKAWA, NIPPPO,
EIHO, TENEI, MANEI (BANEI), OTORISAN and NIYO MARUs and transports MANKO,
TEIHOKU (ex-French PERSEE) and AOBASAN MARUs and tanker NICHINAN MARU No. 2,
then in the South China Sea.
2 May 1944:
At 1200, HI-59 arrives at Singapore.
4 May 1944:
At 0400 CD-20 departs Manila with kaibokan KURAHASHI and
KURI, minesweeper W-17 and auxiliary subchaser TAKUNAN MARU No. 3, escorting
convoy MATA-19 consisting of TETSUYO, NICHIZUI, TEIRYU, RAKUYO, SHOGEN, DAKAR
MARUs, BANSHU MARU No. 32 and two unidentified merchant ships.
7 May 1944:
NICHIZUI, TEIRYU (ex-German AUGSBURG), RAKUYO, SHOGEN,
DAKAR MARUs and BANSHU MARU No. 32 and CD-20 detach for Kirun (Keelung), Taiwan.
9 May 1944:
At 0600 arrives at Kirun. Later that day CD-20 departs
port with convoy TE-05 that had departed Kirun that morning, consisting of
YAMADORI, HIYORI, HIOKI, KOKUSEI, HIKACHI, NICHIWA, SHONAN MARUs and KYOEI MARU
No. 2 also escorted by kaibokan CD-1 and CD-8 and old destroyer ASAGAO.
10 May 1944:
At 1040 arrives at Takao. At 1800 departs Takao, still
13 May 1944:
Off Hong Kong YAMADORI MARU is detached and proceeds to
14 May 1944:
At 1800 arrives at Yulin.
19 May 1944:
At 1700 CD-20, kaibokan CD-1 and CD-8 and auxiliary
netlayer KAINAN MARU depart Yulin, escorting convoy HO-01 consisting of SHONAN
MARU (5401 GRT) and five unidentified merchant ships.
26 May 1944:
At 0900 arrives at Singapore. Departs almost
immediately with CD-8 and CD-1 and some time after joins up with convoy MISHI-02
consisting of MEXICO, IMAHARU and IIDA MARUs and NANSHIN MARU No. 2 and NANSHIN
MARU No. 6 also escorted by minesweeper W-18 and auxiliary minesweeper CHOUN
MARU No. 7.
29 May 1944:
At 1200 arrives at Singapore.
3 June 1944:
At 1000, CD-20 departs Singapore with kaibokan CD-1,
CD-8, CD-15 escorting convoy HO-02 consisting of NASUSAN, TAMAHOKO, TAINAN,
KENNICHI, SHONAN, TEIHOKU (ex-French PERSEE), HIOKI, NICHIWA MARUs and KONAN
MARU No. 1 and ten unidentified ships. TAMAHOKO MARU is carrying 772 Allied POWs
from camps at Batavia, Java, including 42 American POWs.
6 June 1944:
160 miles off Cape St. Jacques, Indochina. LtCdr (later
Cdr) James W. Davis' (USNA '30) USS RATON (SS-270) attacks the convoy. At 2225,
Davis torpedoes CD-15. She breaks in two and sinks S of Nishinotorishima Island
at 08-57N, 109-17E. CD-20 and CD-8 rescue 34 survivors. The escorts counter
attack. USS RATON is damaged by depth charges, but remains on patrol.
11 June 1944:
At 1600 arrives Manila. NASUSAN MARU joins the convoy.
CD-8 is detached. Minelayer AOTAKA joins the convoy.
14 June 1944:
At 1330, departs Manila still escorting HO-02.
19 June 1944:
At 0915, arrives at Takao.
20 June 1944:
At 1000, departs Takao.
21 June 1944:
Arrives and departs Kirun. Eight of the
convoy's ships are detached and a further 11 join, all unidentified. It is
probable CD-20 was detached.
24 June 1944:
Koshiki Straits, 40 miles SW of Nagasaki, Kyushu. At
2350, LtCdr (later Rear Admiral-Ret) Richard H. O'Kane's (USNA '34) USS TANG
(SS-306) attacks the convoy. At 2354, Kane torpedoes and sinks NASUSAN,
TAMAHOKO, KENNICHI and TAINAN MARUs at 32-24N, 129-38E. Eleven crewmen on
NASUSAN MARU, Two Auxiliary Gunners and 34 crewmen on KENNICHI MARU and 39
crewmen on TAINAN MARU are KIA. For TAMAHOKO MARU the whaling ship picks up some
survivors, but 560 POWs are lost including 15 American soldiers and sailors. A
further two gunners and 33 crewmen are also killed.
25 June 1944:
At 1030 CD-20 detaches from the convoy and heads for
26 June 1944:
At 1400, the remainder of convoy HO-02 arrives at Moji.
That same day CD-20 arrives at Sasebo.
3 July 1944:
At 2000, CD-20 departs Moji with destroyer HARUKAZE and
kaibokan CD-11, CD-26, CD-28 and subchaser CH-28 escorting convoy MOMA-01
consisting of KASHII, TAMATSU, TOSAN, NISSHO, MAYASAN, MIZUHO, NICHIRAN, ARABIA
and RAKUYO MARUs. The convoy is transporting the IJA's 5th Field Heavy Artillery
and 58th Independent Mixed Brigade.
7 July 1944:
Formosa Straits. Convoy MOMA-01 is ordered to turn back
to Keelung, Formosa.
9 July 1944:
Departs Keelung escorting MOMA-01. ARABIA MARU may have
joined the convoy at this point.
12 July 1944:
Bashi Strait. At 0330, LtCdr (later Cdr) Walter P.
Schoeni's (USNA '31) USS APOGON (SS-308) fires a full bow spread of torpedoes at
MAYASAN MARU. Schoeni fails to damage her, and USS APOGON is rammed during the
attack. At 0720, LtCdr Harold E. Rubles' (USNA '33) USS PIRANHA (SS-389)
torpedoes and sinks NICHIRAN MARU at 18-50N, 122-40E. KASHII MARU rescues
survivors, but 1238 troops, one ship's gunner and 15 crewmen are KIA. The convoy
seeks shelter in Aparri Harbor, Philippines.
13 July 1944:
At 0800, departs Aparri.
15 July 1944:
At 1400, arrives at Manila.
24 July 1944:
At 0600, CD-20 departs Manila for Moji with escort
carrier KAIYO, kaibokan CD-11, HIRADO (F), MIKURA, ISHIGAKI, KURAHASHI,
KUSAGAKI and torpedo boat HIYODORI escorting convoy HI-68. The convoy sails in
three columns consisting of IJA landing craft depot ship MAYASAN MARU, oilers
OTORISAN MARU and NICHINAN MARU No. 2 and escort carrier TAIYO in column No. 1;
landing ship TAKATSU MARU (a.k.a KOZU MARU) and transports TOSAN,
KASHII, NISSHO and AKI MARUs in column No. 2 and ex-seaplane tender KIYOKAWA
MARU and oilers ITSUKUSHIMA, TOA, TOHO and SHIMPO MARUs in column No. 3.
A three-submarine wolf pack of Cdr (later Rear Admiral) Reuben T.
Whitaker's (USNA '34) USS FLASHER, LtCdr Franklin Hess's (USNA '35) USS ANGLER
(SS-240) and LtCdr (later Captain) Francis D. Walker's (USNA '35) USS CREVALLE
(SS-291) tracks the convoy.
25 July 1944:
Off NW Luzon. At 1540, transports AKI and TOSAN MARUs
successfully evade an attack by USS CREVALLE.
26 July 1944:
Off Luzon. The wolfpack attacks and sinks TOSAN, AKI and
OTORISAN MARUs and damages KIYOKAWA MARU. Nine crewmen, eight gunners & 18
passengers on TOSAN MARU are KIA. 46 men aboard OTORISAN MARU are KIA. On AKI
MARU some 24 passengers are killed as are 14 gunners, and 3 crewmen; a total of
27 July 1944:
At 1100, arrives at Takao.
28 July 1944:
At 1800, departs Takao to reinforce convoy MI-10
consisting of DAIZEN, HIDA, HINAGA and FUYUKAWA MARUs KENZUI, TEIFU (ex-French
BOUGAINVILLE), KAKOGAWA, TSUKUBASAN, ROKKO, RASHIN, FRANCE, MYOGI MARUs and UNYO
MARU No. 7, WAKO GO and tankers SHUNTEN, TAKETSU (BUTSU), CHIYODA, SHIMOTSU,
KOSHIN, KOTOKU, NICHINAN (1945 GRT), OEI MARU and SHIMOTSU MARUs and KYOEI MARU
No. 6 plus 11 unidentified ships escorted by CD-3, YASHIRO and destroyer
E 30 July 1944:
CD-20 joins the convoy escort.
2 August 1944:
At 1000 arrives at Takao, Formosa. MATSUMOTO MARU,
ASAKAZE and YASHIRO are detached. FRANCE and RASHIN MARUs are probably also
detached. SEIGA and HAKOZAKI MARUs join as do destroyer KURETAKE, kaibokan
CD-17, minelayer MAESHIMA and auxiliary gunboats CHOJUSAN, PEKING and KAZAN
4 August 1944:
At 1300 departs Takao.
10 August 1944:
At 0700 arrives at Sasebo after detaching from the
convoy earlier that day at 0200. Undergoes repairs.
14 August 1944:
At 0730 departs Sasebo and later that day arrives at
15 August 1944:
At 0600, CD-20 departs Moji for Takao with destroyer
HATSUSHIMO, kaibokan CD-10, torpedo boat HIYODORI, minesweeper W-20 and
subchaser CH-63 escorting convoy MOTA-23 consisting of FUKUREI, EDOGAWA, DAIJO,
EIJI, MANSHU, ATSUTA, CHINA, ROZAN, EIMAN, TOYOOKA, KOGYO, AWAJI MARUs, YOSHIDA
MARU No. 3, TOYO MARU No. 3 and an unidentified ship.
16 August 1944:
S of Kyushu. A floatplane from Saeki NAG directs
CD-20 to depth-charge a suspected submarine contact detected in that area on the
15th. At 1237 CD-10, W-20 and CH-63 execute an anti submarine sweep. CD-20 then
rejoins the convoy.
17 August 1944:
CH-63,CD-10 and W-20 follow the convoy meanwhile
continuing anti submarine sweeping. At 2000 they catch up with the convoy and
end anti submarine sweeping.
18 August 1944:
At 0900 arrives at Kagoshima.
20 August 1944:
At 0200 departs Kagoshima.
24 August 1944:
At about 0700, off the coast of Sancho Point, Formosa
(now cape Sandiajiao, Taiwan), LtCdr Henry S. Monroe's (USNA '33) USS RONQUIL
(SS-396) torpedoes and sinks YOSHIDA MARU No. 3 with 96 out of 99 troops, 10
gunners and all 70 of the crew being KIA. At about the same time, Monroe
torpedoes and damages FUKUREI MARU with troops, coal and war supplies aboard.
She floods and drifts ashore where she is abandoned about three months later.
210 of the 1445 troops on board and four of the crew are killed.
25 August 1944:
At 1400, the convoy arrives at Kirun (Keelung).
27 August 1944:
At 0900 the convoy departs Kirun.
28 August 1944:
At 1900 arrives at Saei (Tsoying).
29 August 1944:
The convoy departs Saei and it arrives at Takao later
30 August 1944:
At 1500, CD-20 departs Takao for Manila with minelayer
SHIRATAKA, minesweeper W-21, and kaibokan CD-10 escorting reorganized convoy
MI-15 that now consists of RIKKO, TAISHO, OKUNI (TAIKOKU), EIKYU, SHINYO,
NANSEI, HOSEN and CHIYODA MARUs with UNKAI MARU No. 5, OKINOYAMA MARU No. 5 and
KYOEI MARU No. 10.
31 August 1944:
Luzon Strait, S of Formosa. At about 0220, LtCdr
(later Rear Admiral) Charles E. Loughlin's (USNA '33) USS QUEENFISH (SS-393)
hits CHIYODA MARU with four torpedoes and sets her afire. At 0240, as the moon
sets, CHIYODA MARU sinks. She was carrying 430 passengers, coal briquettes and
drummed gasoline. 382 passengers and 15 of the crew are KIA. Loughlin also
damages oiler RIKKO MARU steaming in ballast.
LtCdr (later Vice Admiral) Eli T. Reich's (USNA '35) USS SEALION
(SS-315), a member of "Ben's Busters" with USS GROWLER (SS-215) and USS
PAMPANITO, enters the Bashi Strait. USS SEALION's SJ radar picks up the convoy
and Reich makes a night surface approach. He sets up and fires six torpedoes,
but they all run erratically. About 0500, Reich swings USS SEALION and fires his
four stern torpedoes at a large tanker. He claims two hits.
Alerted by code-breaker's "Ultra" signals, LtCdr (later Rear Admiral)
Eugene B. Fluckey's (USNA '35) USS BARB (SS-220) intercepts the convoy. At about
0700, Fluckey torpedoes OKUNI MARU. She sinks stern first with three of her
crewmen dead. Fluckey also sinks the 45th Minesweeper Squadron's HINODE MARU No.
20 that was patrolling in the area. Two crewmen are KIA.
USS SEALION evades the convoy's escorts. Still surfaced, LtCdr Reich
makes an "end-around" approach and works his way ahead of the convoy. At 0715
(JST), SHIRATAKA's lookouts spot a submarine on the surface at at 21-05N,
121-26E. Reich misidentifies SHIRATAKA as a destroyer. He begins a submerged
approach. At 0730, Reich hits SHIRATAKA with two of three torpedoes. At 1115,
SHIRATAKA sinks at 20-55N, 121-07E. Captain Miki Takahide (46) is KIA. He is
promoted Rear Admiral, posthumously.
1 September 1944:
At 2120 CD-20 arrives at Tungchiang escorting NANSEI
and TAISHO MARUs.
2 September 1944:
At 2355 the convoy departs (less TAISHO MARU that
returns to Takao).
5 September 1944:
At 1900 arrives at North San Fernando.
6 September 1944:
At 0800 departs North San Fernando.
7 September 1944:
At 1000, the convoy arrives at Manila.
10 September 1944:
CD-20 departs Manila for Moji with CD-10
escorting fleet convoy MAMO-03 consisting of GOKOKU, KAGU and KIBITSU MARUs.
11 September 1944:
Minesweeper W-21 joins the convoy. At 0830 CD-20
responds to a submarine contact and begins a submarine hunt. Later at 0910 in S
China Sea. 100 miles NE of the Paracel Islands. Convoy MAMO-03 joins fleet
convoy HI-72 that departed Singapore on 6 September for Moji. HI-72 includes
ASAKA, NANKAI, KIMIKAWA, RAKUYO, ZUIHO, KIBITSU and KACHIDOKI MARUs
(ex-US-PRESIDENT HARRISON). HI-72 carries oil, drummed aviation gasoline,
bauxite, mercury and rubber. RAKUYO MARU also carries 1,317 Allied POWs and
KACHIDOKI MARU carries another 950 POWs. Destroyer SHIKINAMI and kaibokan
HIRADO, MIKURA and KURAHASHI are in the escort.
12 September 1944:
At 0200, HIRADO is torpedoed by Cdr Thomas B.
Oakey's (USNA '34) USS GROWLER (SS-215). The kaibokan blows up and sinks. Rear
Admiral Kajioka Sadamichi (39) (former CO of KISO), victor of Wake Island, now
CO of the 6th Escort Convoy Command is killed. He is promoted Vice Admiral,
At 0500, RAKUYO MARU is torpedoed by LtCdr (later Vice Admiral) Eli T.
Reich's USS SEALION and hit in the No. 1 hold and engine room. RAKUYO MARU is
carrying 1,318 POWs (601 British, 716 Australian and several US POWs), of whom
1,051 POWs and nine crewmen are KIA. About the same time, USS SEALION also
torpedoes NANKAI MARU carrying 525 passengers, 6,500-tons of bauxite, 4,000
drums of gasoline, 170-tons of oil, 77 mail packages and ashes of 18 war dead.
She is hit in holds Nos. 3 and 6 and sinks about 0800. 196 passengers on the
ship and three crewmen are KIA. [Note 2]
240 miles south of Hong Kong. Just before 0700, SHIKINAMI is torpedoed by
GROWLER and sinks at 18-16 N, 114-40 E. Eight officers and 120 men are rescued
by MIKURA. At 2300, KACHIDOKI MARU carrying 487 IJA troops, 608 patients,
gunners, ashes of 582 dead, 950 POWs and a cargo of 6,000-tons of bauxite is
hit by USS PAMPANITO (SS-383) and sinks. 431 POWs as well as 45 other
passengers and 12 crewmen, a total of 488 people perish. USS PAMPANITO also
sinks ZUIHO MARU with the loss of all crew. The Japanese rescue a few POWs from
the two prison ships. The survivors are transferred to KIBITSU MARU and taken to
Japan. CD-20 rescues survivors. [Note 2]
15 September 1944:
At 1020 the remainder of the convoy arrives at
Yulin, Hainan Island.
16 September 1944:
At 2000 CD-10 departs Yulin for Moji with kaibokan
MIKURA, ETOROFU, CD-18 and CD-26 escorting the 1st echelon of reorganized convoy
HI-72 consisting of ASAMA, KIBITSU MARU, GOKOKU and KAGU MARUs.
20 September 1944:
Off Formosa. At 0110, USAAF B-24 "Liberator" heavy
bombers attack the convoy's first (Moji-bound) echelon at 23-20N, 119-12E.
GOKOKU MARU is damaged by a direct hit and ASAMA MARU suffers a near miss aft.
Both are towed into nearby Mako for repairs. KAGU MARU suffers hull damage by
near-misses. Kaibokan MIKURA is damaged and towed to Mako by CD-18. The bombers
also damage cargo vessels ASAKA and SHINCHO MARUs. KAGU MARU heads for Kirun
(some sources say Takao) for repairs escorted by CD-20, CD-10 and CD-11. At 1745
CD-20 arrives at Kirun.
23 September 1944:
At 1200 CD-10, CD-20 and CD-11 depart Kirun to meet
incoming elements of HI-72 convoy.
24 September 1944:
At 1045 they rendezvous with KIBITSU MARU and arrive
at Kirun at 1320.
25 September 1944:
At 1300, CD-20 departs Takao for Moji with
kaibokan CD-10 and CD-11 escorting modified convoy HI-72 (partial) consisting
of KIBITSU and KAGU MARUs.
27 September 1944:
East China Sea, 100 miles NNW of Amami-Oshima.
LtCdr Clyde B. Stevens Jr's (USNA '34) USS PLAICE (SS-390) torpedoes and sinks
CD-10 at 29-26N, 128-50E. CD-11 rescues rescues survivors.
28 September 1944:
At 0900 arrives at Mutsure, and departs almost
immediately at 0910. At 2100 arrives at Sasebo.
8 October 1944:
At 1000 CD-14 and CD-20 depart Sasebo with ships to
make up convoy MI-23.
9 October 1944:
At 1500 arrives at Miike.
14 October 1944:
15 October 1944:
Arrives at Sasebo.
18 October 1944:
At 0700, CD-20 departs Imari Bay near Sasebo via
Cape St. Jacques, Indo-China for Miri with kaibokan CD-14, CD-34, CD-39, CD-46
and patrol boats PB-102 and PB-38 escorting convoy MI-23 consisting of EBARA,
MUNEKATA, HIKACHI (NISSHO), MATSUMOTO, KOSHIN, EININ, RITSUEI, YAMASONO, ENREKI
(ENRYAKU), SHOEI, HIROTA, UNZEN, YOKAI and SHIROTAE MARUs and YUZAN MARU No. 2.
and survey ship HAKUSA.
20 October 1944:
Anchors in Raro Bay off South Korea.
22 October 1944:
At the Shushan anchorage, E of Shanghai.
24 October 1944:
75 miles ENE of Foochow, China. At 1000, HIROTA,
UNZEN and YOKAI MARUs are detached for Takao escorted by PB-103 and PB-38.
25 October 1944:
Formosa Strait. At 0208, Cdr (later Rear
Admiral-Ret) Richard H. O'Kane's USS TANG (SS-306), running on the surface,
torpedoes and sinks EBARA MARU at 25-04N, 119-35E. Eleven crewmen are KIA.
MATSUMOTO MARU, following behind EBARA MARU, alters course intent on
ramming USS TANG, but one of the torpedoes fired at EBARA MARU strikes onrushing
MATSUMOTO MARUís No. 1 hold. Her bow plunges under and she comes to a halt. Two
machine guns on her bridge open fire and drive the submarine under where the
water depth is a mere 131 feet.
The convoy speeds onward. CD-34 drops a few depth-charges. Nine American
submariners are found drifting on the surface including Captain O'Kane. CD-34
rescues the survivors and later claims to have sunk USS TANG, but, in fact, the
submarine was sunk by one of BuOrd's defective Mark 18 torpedoes. CD-34 is
detached with the POWs for Takao, Formosa. At 2000, convoy MI-23 arrives at
Chuanchow Bay where MATSUMOTO MARU is successfully grounded; however, she lists
heavily. CD-20 probably is detached at this time.
26 October 1944:
MATSUMOTO MARU capsizes and becomes a total loss. No
casualties have been sustained in the preceding action. At 0600, the convoy
anchors outside Amoy Harbor, and departs the same day at 1800.
27 October 1944:
At 0800 the convoy arrives at Mako. YUZAN MARU No. 2
is detached and an unidentified ship joins the convoy.
29 October 1944:
At 1700 CD-20 departs Mako to rendezvous with convoy
SATA-01 from St Jacques consisting of FUKUJU MARU and two unidentified merchant
ships escorted by subchaser CH-41 and stores ship KURASAKI.
1 November 1944:
At 1200 meets up with the convoy.
3 November 1944:
Arrives at Yulin. KURASAKI is detached but the
escort is increased by Kaibokan CD-34, auxiliary netlayer KAINAN MARU and
auxiliary subchaser KASUGA MARU. A further two unidentified merchant ships also
join. At 1330 CD-20 arrives at nearby Sana (Samah).
4 November 1944:
Departs Yulin. At 1800 CD-20 departs Sana (Samah).
11 November 1944:
At 0900 CD-20 arrives at Kirun (Keelung). At 1100
(perhaps after bunkering), CD-20 departs Kirun to meet the inbound convoy. At
1700 meets up with the convoy near Kirun.
12 November 1944:
At 1130 arrives at Kirun.
16 November 1944:
At 0600, CD-20 departs Kirun (Keelung) for Moji with
kaibokan CD-39 and subchaser CH-61 escorting convoy TAMO-29 consisting of SHUYO,
FUKUJU, MELBOURNE MARUs and two unidentified ships.
18 November 1944:
Arrives at Ssu Chiao Shan.
19 November 1944:
At 1720 departs Ssu Chiao Shan.
23 November 1944:
At 0348, LtCdr (later Cdr) Evan T. Shepard's (USNA
'35) USS PICUDA (SS-382) torpedoes and sinks SHUYO MARU at 34-14N, 128-28E. 60
passengers and 25 crewmen are killed.
At 0348, USN codebreakers intercept and decrypt a message from CD-20 that
reads: "Convoy attacked by enemy submarine. One vessel sunk [SHUYO MARU] in
position 34-26 N, 128-20 E."
At 0845, after tracking the convoy and making an "end-around", Shepard
torpedoes and sinks FUKUJU MARU at 34-10N, 128-58E. 28 of the crew are killed.
At 0845, codebreakers decrypt another message from CD-20 that reads:
"Positive sub contact and torpedo attack on JQFU [FUKUJU MARU] in position
The escorts counter-attack and drop 23 depth charges on USS PICUDA, but
she escapes undamaged.
24 November 1944:
At 1340 arrives at Moji. CD-20 immediately departs.
25 November 1944:
At 0830 arrives at Kure. Undertakes repairs.
14 December 1944:
CD-20 departs Miike with kaibokan CD-138 escorting
convoy MOTA-28 consisting of MURORAN, TEIKAI MARUs and tankers DAINAN, SHINGI,
OEI, DAIGYO, OESAN and YAMAZAWA MARUs.
22 December 1944:
Arrives at Takao.
30 December 1944:
Lingayen Gulf, Luzon. USAAF Fifth Air Force North
American B-25 "Mitchell" medium bombers, Douglas A-20 "Havocs" and Curtiss P-40
"Warhawks" attack shipping in the approaches to the Gulf and sink CD-20 at
06-30N, 120-18E. 52 sailors, including her CO, are lost.
25 May 1945:
Removed from the Navy List.
[Note 1] The specialist Landing craft depot ship TAKATSU
MARU's name can also be rendered as KOZU MARU, KOTSU MARU or KOSHIN MARU.
[Note 2] The Japanese rescue some of the POWs from these two ships. All
are transferred to KIBITSU MARU and taken to Japan. The American submarines
later return to rescue a number of British and Australian POWs.
Thanks go to John Whitman for info on USN decrypts of coded Japanese
messages and to Mr. Gilbert Casse of France.
-Bob Hackett and Peter Cundall