© 2006-2017 Bob Hackett, Sander Kingsepp and Peter Cundall.
15 October 1943:
Kobe. Laid down at Mitsubishi Heavy Industries shipyard.
15 January 1944:
Launched and numbered CD-9.
10 March 1944:
Completed and registered in the IJN.
25 March 1944:
Assigned to the General Escort Command’s First Surface Escort Division.
27 March 1944:
At 0700 CD-8, CD-9 and CD-10 depart Saeki. At 1400 CD-8 and CD-9 arrives at Moji (CD-10 goes to Kure).
1 April 1944:
CD-9 departs Moji with escort carrier KAIYO, kaibokan IKI, ETOFORU, CD-8 and torpedo boat SAGI escorting convoy HI-57 consisting of oilers ITSUKUSHIMA, OTOWASAN, RYOEI and OMUROSAN MARUs, IJA landing craft depot ships SHINSHU and MAYASAN MARUs transport SEIA MARU, and probably tankers ZUIHO and SHINCHO MARUs and transport KINGASA MARU.
2 April 1944:
The convoy encounters extremely severe weather and returns to Moji.
3 April 1944:
At 0600, the unchanged convoy departs Moji.
7 April 1944:
At 1450, arrives at Takao.
8 April 1944:
At 1000, departs Takao.
12 April 1944:
At 1930 arrives at Camranh Bay.
13 April 1944:
At 1200, departs Camranh Bay.
16 April 1944:
At 1240, arrives at Singapore.
21 April 1944:
At 0700, CD-9 departs Singapore with escort carrier KAIYO, kaibokan IKI, ETOFORU and CD-8 escorting convoy HI-58 consisting of oilers ITSUKUSHIMA, RYOEI, OMUROSAN and OTOWASAN MARUs, transport KACHIDOKI MARU (ex PRESIDENT HARRISON), IJA landing craft depot ship SHINSHU MARU, and probably tanker ZUIHO MARU and IJA landing craft depot ship MAYASAN MARU.
3 May 1944:
At 0725 HI-58 arrives at Moji. CD-9 steams on to Kure and arrives at 1800. Undergoes repairs.
8 May 1944:
Departs Kure and at 1800 arrives at Moji.
13 May 1944:
At 0400, CD-9 departs Moji for Singapore with Rear Admiral, the Baron, Ijuin Matsuji’s (43)(former CO of KONGO) 1st Escort Convoy Command’s kaibokan IKI (F), MATSUWA and CD-15 escorting convoy HI-63 consisting of cargo liners/transports SANUKI, SANYO, AWA, TEIA (ex French ARAMIS), USSURI and NISSHO MARUs, IJA landing craft depot ships TAMATSU and KIBITSU MARUs, tankers KYOKUHO, RYOEI and OTOWASAN MARUs. SANUKI MARU and the other transports, except TAMATSU, KIBITSU and NISSHO MARUs, carry
troops bound for Burma.
18 May 1944:
At 1830, arrives at Manila. SANUKI, SANYO, AWA, TEIA (ex French ARAMIS), USSURI and NISSHO MARUs are detached. TAMATSU, KIBITSU and NISSHO MARUs are detached for Cagayan, Philippines.
20 May 1944:
At 0500, the remaining eight ships in HI-63 depart Manila with the same escort.
24 May 1944:
150 miles W of Sarawak, Borneo. At about 0220 (JST), LtCdr (later Cdr) James W. Davis' (USNA ’30) USS RATON (SS-270) torpedoes and sinks IKI. 160 sailors, including Rear Admiral Ijuin Matsuji (43) and IKI’s skipper Cdr Nakao Kusuo are KIA. 18 are rescued by ETOROFU. Ijuin is promoted Vice Admiral, posthumously. LtCdr Davis also torpedoes and lightly damages MATSUWA at 01-17N 107-53E. The rest of HI-63 escapes unscathed.
27 May 1944:
At 2000 arrives at Singapore.
6 June 1944:
At 0730, CD-9 and kaibokan MATSUWA depart Singapore escorting convoy HI-64 consisting tankers OTOWASAN MARU and probably NIYO and EIYO MARUs and passenger ship TEIA MARU (ex-French liner ARAMIS).
15 June 1944:
At 0600, arrives at Moji.
16 June 1944:
At 0800 arrives at Kure.
22 June 1944:
At 0800 departs Kure and at 1700 arrives at Moji.
23 June 1944:
At 1700 CD-9 departs Moji for Miri Borneo with torpedo boats TOMOZURU and HATO, minelayer NUWAJIMA and auxiliary gunboats PEKING and KAZAN (HUASHAN) MARUs escorting convoy MI-09 consisting of SAIHO, SAINEI, CHILE, SHIOMOTSU, CHIYODA, SHUNTEN, SHIROUMA (HAKUBA), NORFOLK, KINRYO, KENSEI, UGA, TATSUHARU, BINGO, TEIKA (ex French CAP VARELLA), AMAHI, NATSUKAWA, EIYO, MISAKI, NIKKO, HIROTA, YOKO and KYOKUZAN MARUs, KYOEI MARU No.3, KYOEI MARU No.10 and two other unidentified merchant ships.
28 June 1944:
AMAHI and TEIKA (Ex French CAP VARELLA) MARUs are both detached and later that day arrive at Kirun. Soon after MISAKI MARU and NUWAJIMA are detached for Kirun.
29 June 1944:
At 1300, arrives at Takao. YOKO MARU is detached.
30 June 1944:
At 1800, departs Takao.
3 July 1944:
At 2000, arrives at Manila. CD-9 is detached.
15 July 1944:
CD-9 and torpedo boat HATO depart Miri escorting convoy MISHI-05 consisting of NORFOLK, UGA, KENSEI (Ex British HIN SANG) and KINRYO MARUs and one unidentified merchant ship.
19 July 1944:
Arrives at Singapore.
24 July 1944:
At 0730, CD-9 departs Singapore for Moji via Manila with torpedo boat HATO escorting convoy SHIMA-02 consisting of TENSHIN, HINAGA, KENEI and SIBERIA MARUs, SHINSEI MARU No.17 and six unidentified merchant ships.
31 July 1944:
At 2103, LtCdr (later Cdr) Lowell T. Stone's (USNA ’29) USS LAPON (SS-269) torpedoes and sinks TENSHIN MARU loaded with avgas, five men are blown overboard (two crewmen, two IJN troops, one IJA troop) and all other 44 crewmen are KIA, at 08-51N, 116-46E and also torpedoes and damages HINAGA MARU.
1 August 1944:
The convoy arrives at Pagdanan Bay on Palawan Island and shelters there.
3 August 1944:
At 1442, USN codebreakers intercept and decrypt a message that reads:“HIJUN MARU while proceeding north in SIMA-02 received a torpedo attack (amidships) at ---- on 31st in position 08-51N, 116-45E and was subsequently lost touch with. CD-9 searched for her until noon on the 2nd but was not (seen?)
4 August 1944:
CD-6 and CD-16 joins as additional escorts and the convoy departs Pagdanan Bay.
5 August 1944:
At 2130 arives at Manila.
8 August 1944:
At 0200 CD-9 departs Manila with kaibokan MATSUWA, YASHIRO, CD-5, CD-6 and CD-16, subchaser CH-58 and an unidentified warship escorting convoy MATA-26 consisting of TAKETSU (BUTSU), IKOMASAN, SHINEI, KACHOSAN, HINAGA, ASAKA, KENEI and ASAKA MARUs and fourteen other unidentified merchant ships.
10 August 1944:
At 1029 SHINEI MARU is torpedoed and sunk off Cape Bolinao in 16-15N 119-45E by USS GUITARRO. Soon after Minesweepers W-38 and W-39 arrived to bolster the escort.
12 August 1944:
YASHIRO assists KACHOSAN MARU from the convoy.
14 August 1944:
In the eye of a major typhoon, war built tanker TAKETSU (BUTSU) MARU breaks up, though whether a result of the weather or a drifting mine is unclear. Ikomasan IKOMASAN and ASAKA MARUs are both stranded on islands in the Bashi Island Group, North of Luzon. Both are later refloated.
15 August 1944:
At 1300 arrives at Saei.
17 August 1944:
At 1800 departs Saei alone.
18 August 1944:
Arrives at Kirun.
20 August 1944:
At 0600 CD-9 departs Kirun (Keelung) with kaibokan CD-5, CD-6, CD-18, subchaser CH-58 and auxiliary gunboat CHOHAKUSAN MARU escorting convoy TAMO-23 consisting of HORAI (tanker), KIYOKAWA, TETSUYO, SHINFUKU, NIKKO, MATSUMOTO MARUs and TONAN MARU No. 2 and seven unidentified merchant ships.
22 August 1944:
LtCdr (later Admiral/CINCPACFLT) Bernard A. Clarey’s (USNA ’35) USS PINTADO (SS-387) torpedoes and sinks tanker TONAN MARU No. 2 at 29-53N, 125-9E. Four crewmen are KIA.
26 August 1944:
At 1900 detaches from the convoy that sails on to arrive at Moji later that day.
27 August 1944:
At 0800 arrives at Sasebo.
30 August 1944:
31 August 1944:
Arrives at Yuya Wan.
1 September 1944:
Departs Yuya Wan.
2 September 1944:
Arrives at Sasebo.
7 September 1944:
8 September 1944:
Arrives at Moji.
11 September 1944:
At 1500, CD-9 departs Moji for Takao with destroyer HARUKAZE, kaibokan CD-26 and subchaser CH-56 escorting convoy MOTA-26 consisting of GASSAN, SEIZAN, HAKUSAN, HOTEN, MURORAN, MANILA, MACASSAR, DAIKU, DAIKYO, NANKING, FUYUKAWA, PEKING, DAIZEN, HIDA, ROKKOSAN and JUNHO MARUs and NICHIYU MARU No.2, and tanker DAISHO MARU.
16 September 1944:
GASSAN, SEIZAN and HAKUSAN MARUs split from the convoy and later that day arrive at Keelung.
17 September 1944:
At 1300, arrives at Takao. At 1600 CD-9 departs Takao.
18 September 1944:
At 1100 sails to asist HI-74 but apparently does not meet up and returns at 1400.
25 September 1944:
At 1400, departs Takao with destroyer HARUKAZE, kaibokan CD-6, CD-9, CD-16 subchaser CH-56 and stores ship KURASAKI escorting convoy TAMA-27 consisting of DAIBIN, MANILA, DAIKYO, SAN DIEGO MARUs, very likely DAIIKU, SHUNSHO MARUs and NICHIYU MARU No. 2 and four unidentified merchant ships.
26 September 1944:
At 2000 arrives in the Sabtang Channel.
27 September 1944:
At 0300 departs and at 1900 arrives at Aparri.
28 September 1944:
At 0100 departs Aparri and at 1800 arrives at Lapoc Bay.
29 September 1944:
At 0600 departs Lapoc Bay and at 1600 arrives at San Fernando.
30 September 1944:
At 0600 departs San Fernando. Later an enemy submarine contact is made. At 1600 arrives back at San Fernando.
2 October 1944:
Departs San Fernando.
3 October 1944:
At 1800 arrives at Masinloc.
4 October 1944:
At 0630, departs Masinloc. At 0855, Cdr (later Rear Admiral) Rueben T. Whitaker's (USNA ’34) USS FLASHER (SS-249) torpedoes and sinks DAIBIN MARU, which had detached with KURASAKI, at 15-15N, 119-50E. The ship is carrying 3 large corps of 612 base construction men of whom 68, as well as 8 out of 33 passengers and 34 of the crew are KIA. Late that day, the remaining ships arrive at Manila. CD-9 apparently diverts from the convoy and heads south.
7 October 1944:
At 0830 arrives at St Jacques.
8 October 1944:
At 1000 departs St Jacques.
10 October 1944:
At 2000 arrives at Singapore.
12 October 1944:
At 1600 CD-9 and kaibokan TSUSHIMA and minelayer YURIJIMA depart Singapore in convoy HI-76A consisting of TEIRITSU MARU (ex French LECONTE DE LISLE) and tankers TOA, TAIHO and AMATO MARUs.
15 October 1944:
At 2000 arrives at St Jacques. TEIRITSU MARU and TSUSHIMA are both detached and sail upriver to Saigon. CD-9 is detached, possibly also to go to Saigon, but later rejoins the convoy together with TSUSHIMA. YURIJIMA is detached.
18 October 1944:
At 1800 the convoy departs St Jacques but because of the worsening military situation turns back.
20 October 1944:
At 1200 returns to St Jacques.
22 October 1944:
At 0800 the convoy now strengthened by additional kaibokan escorts DAITO, CD-16 and CD-28 departs St Jacques.
26 October 1944:
At 2016 an enemy submarine is sighted at 20.19N 114.26E.
27 October 1944:
At 1345 an enemy submarine is sighted at 20.42N 114.34E. Soon after DAITO is likely detached. CD-16 is also detached on this date and arrives at Mako.
31 October 1944:
At 2300 arrives at Mutsure.
2 November 1944:
Arrives at Moji.
8 November 1944:
At 0000 CD-8 and CD-9 depart Sasebo and at 1830 arrive at Miike.
10 November 1944:
At 1530, CD-9 departs Miike for Manila with kaibokan CD-8, CD-28, CD-54, auxiliary subchasers CHa-24 and an unidentified warship escorting convoy MOMA-07 consisting of KENJO, NARUO, GYOKUKO, JINYO, FUKUYO, TATSUAKI (TATSUSHO), MINO, SHIROUMA (HAKUBA), MIHO and SHINFUKU MARUs and KONAN MARU No. 1.
11 November 1944:
Near Cape Ose Sea, Goto Archipelago. At 0906, Cdr (later Rear Admiral) Charles E. Loughlin’s (USNA ’33) USS QUEENFISH (SS-393) fires four torpedoes and hits MIHO MARU in the bow. Unable to keep up with the convoy, she heads for Sasebo. The escorts drop 55 depth-charges on USS QUEENFISH, but she remains undamaged.
12 November 1944:
400 kilometers SW of Nagasaki. At 0420, LtCdr (later Rear Admiral/MOH) Eugene B. Fluckey’s (USNA ’35) USS BARB (SS-220) torpedoes NARUO and GYOKUYO MARUs at 31-30N 125-57E. NARUO MARU, hit by one or more torpedoes, blows up and sinks instantly. She was carrying 20,000 shells and army troops. 72 crewmen, 131 gunners & 490 troops are KIA.
GYOKUYO MARU is hit by a torpedo in the engine spaces. She goes dead in the water and begins to drift. Later, JINYO MARU attempts to tow the cripple, but the towline parts. The passengers are to transfered to other ships. The escorts drop seven depth-charges on USS BARB and she suffers slight damage.
At about 0620, LtCdr Robert H. Caldwell’s (USNA ’36) USS PETO (SS-265) torpedoes TATSUAKI MARU at 31-46N, 125-40E. One strikes No. 2 hold, a huge explosion occurs and she lists over, then explodes. The IJA transport was carrying passengers (naval recruits). 65 crewmen, 20 gunners and 125 soldiers of the 18th Sea Raiding Battalion, the 19th Division, and Southern Army headquarters are KIA. JINYO MARU rushes to the area where the attack came from and drops depth-charges.
13 November 1944:
At 0950, arrives at the Shushan Islands, E of Shanghai. Soon after CD-9 departs but at 1800 returns to Ssu Chiao Shan, before departing again on an anti submarine sweep. The ship is later joined by CD-8.
14 November 1944:
155 miles E of Shanghai. About midnight, LtCdr Gordon W. Underwood’s (USNA ‘32) USS SPADEFISH (SS-411) fires five torpedoes by radar bearings at GYOKUYO MARU being towed by kaibokan CD-8 towards Shanghai. Hit by several torpedoes, GYOKUYO MARU sinks at 31-04N, 125-58E. Casualties are unknown, but most passengers and crew had been taken off before the sinking.
16 November 1944:
At 0630 the convoy departs Ssu Chiao Shan and at 2300 arrives at Sanmen Wan.
17 November 1944:
At 0900 the convoy departs Sanmen Wan.
19 November 1944:
At 1200, the convoy arrives at Takao, Formosa and is dissolved.
22 November 1944:
At 0600 CD-9 detaches from convoy and at 1900 anchors in Nanji Strait with newly joined CD-61 (from MI-27) where the ships joins HI-81 convoy now consisting of MIRI, ARITA, HASHIDATE, OTOWASAN, SHINSHU, KIYOKAWA, KIBITSU and TAIHO MARUs escorted by kaibokan ETOROFU, KUME, TSUSHIMA, DAITO and SHONAN and destroyer KASHI.
25 November 1944:
At 0730 the convoy departs Nanji Straits for Mako, Pescadores. At 1830 the convoy arrives at Mako.
27 November 1944:
At 1630 CD-9 departs Mako for Singapore with kaibokan CD-61, KUME, ETOROFU and escort destroyer KASHI escorting convoy HI-81 now consisting of ARITA, HASHIDATE, OTOWASAN and TAIHO MARUs.
4 December 1944:
HI-81 arrives at Singapore.
10 December 1944:
Reassigned to the First Escort Fleet.
12 December 1944:
At 1600, CD-9 departs Singapore with kaibokan ETOROFU, SHONAN and KUME escorting convoy HI-82 consisting of tankers OTOWASAN, OMUROSAN, ARITA, PALEMBANG and HASHIDATE MARUs.
17 December 1944:
Arrives at Camranh Bay, Indochina.
19 December 1944:
Departs Camranh Bay.
22 December 1944:
At 0550, OTOWASAN MARU (62 crewmen, 56 soldiers and one passenger KIA), OMUROSAN MARU (two crewmen KIA) and ARITA MARU (57 crewmen KIA) are all torpedoed by LtCdr (later Captain) George W. Grider's USS FLASHER (SS-249). All three burst into flames and sink at 15-02N, 109-08E.
24 December 1944:
At 0900, the surviving ships arrive at Takao. CD-9 and CD-19 are detached.
2 January 1945:
At 1200 CD-9 departs Kirun escorting convoy TAKI-01.
4 January 1945:
At 1900 anchors off Quemoy.
5 January 1945:
At 0600 departs Quemoy. At 1900 arrives at Nanji Suido.
7 January 1945:
At 0800 departs Nanji Suido.
8 January 1945:
At 1630 arrives at Takao.
9 January 1945:
Aircraft of Vice Admiral (Admiral posthumously) John S. McCain’s Sr. (USNA '06) Task Force 38 support the landings at Lingayen Gulf, Philippines with attacks on Formosa. Off Saei (Tsoying), they damage CD-9, CD-13, and CD-60. CD-9 undergoes repairs for the rest of the month.
3 February 1945:
At 1700 CD-9 and kaibokan AGUNI and CD-18 depart Hong Kong escorting convoy HOMO-01 consisting of HASHIDATE MARU and four unidentified merchant ships.
5 February 1945:
At 2100 arrives at Nanao Tao.
6 February 1945:
At 0600 departs Nanao Tao.
7 February 1945:
On that day, FRUMEL provides the following information:
"Coast Defence Ship No. 9 left (sic) Takao on 9th and will proceed as follows:
10 February, 2200 – 21.58N, 120.20E;
11th February a.m. – arrive at Takao."
9 February 1945:
At 2400 arrives at Heiniu Wan.
10 February 1945:
At 0700 departs Heiniu Wan. CD-18 apparently detaches at this point.
13 February 1945:
Arrives at Shanghai and departs soon after at 1430, the same day.
14 February 1945:
Yellow Sea. W of Cheju (Quelpart) Island, Korea. At about 2100, LtCdr (later Cdr) Richard M. Farrell’s (USNA ’35) USS GATO (SS-212) makes a night surface attack. Farrell fires four torpedoes by radar bearings and gets two hits that sink CD-9 at 32-43N, 125-37E.
4 October 1945:
Removed from the Navy List.
Thanks go to Dr. Higuchi Tatsuhiro and Mr. Motoyuki Iwashige of Japan and Mr. Gilbert Casse of France. Thanks also go to John Whitman for info on CNO intercepts of Japanese messages and to Hans Mcilveen of the Netherlands for info on FRUMEL intercepts.
-Bob Hackett, Sander Kingsepp and Peter Cundall