KAIBOKAN!

(Type C Escort by Takeshi Yuki scanned from "Color Paintings of Japanese Warships")

IJN Escort CD-46:
Tabular Record of Movement

© 2007-2012 Bob Hackett and Peter Cundall

Revision 1


1 May 1944:
Kobe. Laid down at Kawasaki Shipbuilding.

30 June 1944:
Launched and numbered CD-46.

29 August 1944:
Completed and registered in the IJN.

September 1944:
Arrives at Saeki. Participates in anti-submarine and anti-air training with CD-38 for about a month.

18 October 1944:
At 0700, CD-46 departs Imari Bay near Sasebo via Cape St. Jacques, Indochina for Miri, Borneo with kaibokan CD-14, CD-20, CD-34, CD-38, CD-39, and patrol boats P-102 (ex-USS STEWART, DD-224) and P-38 escorting convoy MI-23 consisting of EBARA, MUNAKATA, HIKACHI (NISSHO), MATSUMOTO, KOSHIN, EININ, RITSUEI, YAMASONO, ENRYAKU (ENREKI), SHOEI, HIROTA, UNZEN, YOKAI and SHIROTAE MARUs and YUZAN MARU No. 2 and survey ship HAKUSA.

20 October 1944:
Anchors in Raro Wan, Chosen (Korea). Reassigned to 12th Surface Escort Division.

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 P-102 and P- 38.

25 October 1944:
Formosa Strait.

Cdr (later Rear Admiral-Ret) Richard H. O’Kane’s (USNA ’34) USS TANG (SS-306), running on the surface,is spotted by the lookouts from CD-46. Alerted by a signal flare, the entire convoy commences an emergency turn to starboard.

At 0208, USS TANG 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 MARU’s 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.

Aboard HAKUSA, the convoy commodore orders the convoy dissolved. CD-34 is tasked with the rescue of survivors and conducting anti-submarine operations in the area. One cutter and a 6-meter motor boat are lowered to pick up the survivors of MATSUMOTO and EBARA MARUs. USS TANG commences another attack, but one of her remaining torpedoes commences a circular run. The lookouts on CD-34 first spot the torpedo and then witness an explosion, which sinks the submarine.

The convoy speeds onward. 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 a defective Mark-18 torpedo that happened to be USS TANG's very last torpedo. 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.

26 October 1944:
MATSUMOTO MARU capsizes and becomes a total loss. There are no casualties. At 0600, the convoy anchors outside Amoy Harbor, and departs the same day at 1800.

29 October 1944:
At 0700, the convoy departs Amoy for Cape St. Jacques.

30-31 October 1944:
Aircraft attack the convoy, but no damage is sustained.

4 November 1944:
At 1803, arrives at Cape St. Jacques.

9 November 1944:
At 0235, departs Cape St. Jacques.

12 November 1944:
Arrives at Singapore.

November 1944:
CD-46 and CD-14 depart Singapore for Takao, Formosa via Manila escorting an unidentified convoy.

25 November 1944:
Manila Bay, off Corregidor. About 2120, LtCdr (later Cdr) Francis A. Greenup's (USNA ’36) USS HARDHEAD (SS-365) torpedoes and sinks kaibokan CD-38 escorting convoy SAMA-14A's store ship MAMIYA. The forward part of the kaibokan sinks immediately at 14-22N, 119-57E, but 93 survivors from the aft part abandon ship and later are rescued by CD-46 and other unidentified ships and taken to Manila.

30 November 1944:
At 2104, CD-46 departs Takao for Manila with kaibokan TSUSHIMA, DAITO, CD-14. CD-16 and CD-134 and minesweeper W-101 escorting convoy TAMA-33 consisting of IJA landing craft depot ships 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.

9 December 1944:
CD-46 departs Takao with kaibokan CD-14, CD-16, and minesweeper W-101 escorting convoy TASA-18 consisting of tankers AMATO, ENKI, DAIETSU, RYOEI MARUs and TAMON MARU No. 15.

10 December 1944:
TAMON MARU No. 15 has an engine breakdown and is detached with minesweeper W-101 for Hong Kong.

13 December 1944:
Arrives at Yulin.

17 December 1944:
At 1530, arrives at St Jacques.

20 December 1944:
At 1000, CD-46 departs Cape St. Jacques, Indochina for Takao and Moji with kaibokan CD-14 and CD-16 escorting convoy SATA-04 consisting of YAMAMURA, DAITO, OJIKASAN, DAIRETSU and DAIEI and DAIIKU MARUs.

24 December 1944:
At 0100, the convoy arrives at Batangan Bay. CD-9 and CD-32 join the escort's ranks.

30 December 1944:
Arrives in the Takao area, but at 0633 a radio message is received warning of possible air raids on the port. The convoy makes for Kirun (Keelung), northern Formosa.

31 December 1944:
At 2230, arrives at Keelung.

2 January 1945:
At 0100, the convoy, now called TAMO-34, departs Keelung for Moji with destroyer KIRI, minesweeper W-17 and subchaser CH-37 as additional escorts.

4 January 1945:
Aircraft strafe the convoy, but only OJIKASAN MARU suffers some minor damage and a number of casualties.

9 January 1945:
At 1200, arrives safely at Moji.

22 January 1945:
At 0600, CD-46 departs Moji for Keelung with destroyer KIRI and kaibokan CD-14 and CD-16 escorting convoy MOTA-33. The convoy consists of TEIKA (ex French CAP VARELLA), CLYDE, NIKKO, NANKING, TAKUSAN, SANJIN, MIYAJIMA and SHOKA MARUs.

29 January 1945:
40 miles N of Keelung. LtCdr (later Cdr) Evan T. Shepard’s (USNA ’35) USS PICUDA (SS-382) torpedoes and sinks CLYDE MARU at 25-20N, 121-06E. 972 troops on board, 66 gunners and 61 crewmen are KIA.

30 January 1945:
Arrives at Keelung.

31 January 1945:
At 0600, CD-46 departs Keelung for Moji with kaibokan CD-14, CD-16 and subchaser CH-19 escorting convoy TAMO-39. The convoy consists of AIZAN, SHUNSHO, DAISHUN, SAMARANG, TETSUYO and TATSUHARU MARUs.

8 February 1945:
Arrives at Moji.

12 February 1945:
At 2200, CD-46 departs Moji for Keelung with light cruiser KASHIMA, destroyer SAKURA, kaibokan CD-14 and CD-16 escorting convoy MOTA-36. The convoy consists of MELBOURNE and NISSHO MARUs.

16 February 1945:
KASHIMA and destroyer SAKURA are detached for Shanghai, China.

18 February 1945:
Arrives at Keelung.

22 February 1945:
At 2200, CD-46 departs Moji for Keelung with kaibokan CD-14 and CD-16 escorting convoy TAMO-44. The convoy consists of MELBOURNE, NISSHO and KIYOKAWA MARUs. That same day, MELBOURNE MARU hits a mine. She is detached back to Keelung escorted by CD-46.

23 February 1945:
CD-46 rejoins the convoy.

28 February 1945:
Arrives at Moji.

17 August 1945:
Yellow Sea, off Mokpo, Korea. CD-46 hits a mine laid by USAAF B-29 “Superfortresses” and sinks at 34-51N, 126-02E.

15 September 1946:
Removed from the Navy List.


-Bob Hackett and Peter Cundall

Special thanks to Mr. Gilbert Casse of France.

Back to Escort Page