KUSENTEI!
IJN Subchaser CH-48:
Tabular Record of Movement
© 2005-2017 Bob Hackett, Sander Kingsepp and Peter Cundall
Revision 9
10 September 1942:
Niigata. Laid down at the Niigata Engineering Co., Ltd. factory.
5 March 1943:
Numbered CH-48. Tentatively attached to Yokosuka Naval District.
9 April 1943:
Launched and numbered CH-48.
31 July 1943:
Completed and registered in the Yokosuka Naval District. Atached to the Yokosuka Guard Force. Conducts patrols at the mouth of Tokyo Bay.
24 August 1943:
Departs Yokosuka for Nojimazaki
24 October 1943:
At 0850 hits a mine 148 degrees and 3.4 miles off Kaketsuka lighthouse.
22 March 1944:
Tokyo Bay. CH-48 departs Kisarazu for Saipan and Palau with light cruiser YUBARI, DesDiv 5's HATAKAZE, DesDiv 6's IKAZUCHI and DesDiv 32's TAMANAMI, torpedo boat OTORI, kaibokan NOMI and HIRADO and subchasers CH-51 and CH-54 escorting troop reinforcement convoy Higashi-Matsu No. 3 consisting of supply ship HAYASAKI and KOJUN, MEIRYU, TATSUURA, KENAN, TOMITSU, CHOHAKUSAN and NANYO MARUs and HOSHI MARU No. 11 (JUICHISEI MARU) and NISSEI MARU No. 1.
25 March 1944:
The convoy is attacked by LtCdr (later Rear Admiral-Ret) Bafford E. Lewellen's (USNA ’31) old USS POLLACK (SS-180). Lewellen torpedoes and sinks subchaser CH-54 (casualties unknown) and claims damage to several transports.
30 March 1944:
Arrives at Saipan
3 April 1944:
At 0001, CH-48 departs Saipan with destroyer UZUKI and four unidentified warships escorting convoy Higashi Matsu No. 3 (return voyage) consisting of TATSUTAGAWA, MEIRYU, SEIRYU MARUs and an unidentified ship.
10 April 1944:
Arrives at Yokosuka.
5 May 1944:
Transport SANYO MARU departs Yokosuka escorted by destroyer HATAKAZE and submarine chaser CH-48.
8 May 1944:
SANYO MARU arrives at Moji. CH-48 and HATAKAZE have already detached.
9 May 1944:
CH-48 and destroyer HATAKAZE pass through Kii Suido escorting transport HAKUSAN MARU to Tokyo Bay.
12 May 1944:
Arrives at Yokosuka.
17 May 1944:
At 0616, CH-48 departs Tateyama, Japan with destroyer HATAKAZE, kaibokan CD-16, MIKURA and MIYAKI, mineweeper W-20, minelayer SARUSHIMA and auxiliary netlayer KOA MARU No. 2 escorting convoy No. 3515 consisting of HAKUSAN, NIPPONKAI, TOYO, KINSHU, HINKO, REIKAI, EIKO, NATSUKAWA, SEIGA, AKISHIMA and CHIYO MARUs and UNYO MARU No. 8.
20 May 1944:
Assigned to escort force B commanded by fifth escort fleet commander under confidential Yokosuka naval district instruction No. 398.
23 May 1944:
At about 0900, W-20 is detached from the convoy.
25 May 1944:
At 0708, the convoy arrives safely at Saipan.
29 May 1944:
CH-48 departs Saipan with kaibokan MIKURA, auxiliary submarine chaser URUPPU MARU and auxiliary patrol boat SHOHO MARU escorting a convoy consisting of NIPPONKAI, TOHO and KINSHU MARUs.
1 June 1944:
At 0345, USN codebreakers intercept and decrypt a message that reads: “Subchaser No. 53 proceed immediately to present position NIPPONKAI MARU convoy which sustained a torpedo attack this morning at 0345 in position 18-04N, 141-18E, and engage in escort of this convoy--.”
At 1800 CH-53 departs Saipan and later joins the convoy.
4 June 1944:
At 1000 arrives at Palau.
June 1944:
Arrives at Yokosuka. Reassigned to the General escort Command’s First Surface Escort Division.
30 June 1944:
At 1030, CH-48 departs Cebu with kaibokan CD-6, CD-16 and CD-19 and subchasers CH-12 and CH-35 escorting convoy SEPA-01/SEDA-01 consisting of TAMA, OYO and AZUCHISAN MARUs.
1 July 1944:
TAMA MARU separates with CD-6, CD-16, CH-12 and CH-35 and heads for Palau. OYO and AZUCHISAN MARUs and CD-19 head for Davao.
4 July 1944:
At 0230, a friendly aircraft crash lands in the sea. CH-35 is detached to rescue its crew and falls behind. At 0352, LtCdr Carl Tiedeman's (USNA ’33) USS GUAVINA (SS-362), in the second of two attacks, torpedoes and sinks TAMA MARU at 07-50N 133-40E. 11 crewmen, three gunners and 321 troops and other passengers are KIA.
5 July 1944:
The escorts arrive at Palau alone. It is probable CH-48 has returned to Davao.
7 July 1944:
At 1000 departs Davao escorting convoy DAMA-01 consisting of unidentified merchant ships also escorted by kaibokan MIKURA, CD-19, torpedo boat HIYODORI, and minelayers KYOSAI and YURIJIMA.
9 July 1944:
At 1700 arrives at Cebu.
11 July 1944:
At 0700 departs Cebu still escorting DAMA-01.
13 July 1944:
At 1800 arrives at Manila.
16 July 1944:
CH-48 departs Manila with kaibokan CD-10, auxiliary netlayer KISHIN MARU and auxiliary subchaser SHONAN MARU No. 8 and an unidentified warship escorting convoy MATA-25 consisting of HAKOZAKI, SHINFUKU, SHINSUI and SEIGA MARUs and NISSHO MARU No. 18 and two unidentified merchant ships.
28 July 1944:
Arrives at Takao.
31 July 1944:
CH-48 departs Takao with destroyer SHIOKAZE, kaibokan CD-10 and minelayer YURIJIMA escorting convoy TAMO-22 consisting of TATSUWA, HAKUROKU (HAKUSHIKA) MARUs and five unidentified merchant ships.
1 August 1944:
At 1300 arrives at Keelung.
4 August 1944:
At 1200 departs Keelung.
8 August 1944:
Arrives at Fukuoka Wan with minelayer YURIJIMA and possibly the convoy.
9 August 1944:
At 1400 arrives at Moji.
August 1944:
Attached to the Yokosuka Guard Force. Escorts convoys to Onagawa Bay, Miyagi Prefecture, N Honshu.
12 August 1944:
Repairs commenced and continue throughout August and early September.
17 September 1944:
Repairs are completed and later that day arrives at Onagawa.
22 September 1944:
Departs Onagawa but later that day returns to port.
27 September 1944:
Departs Onagawa.
30 September 1944:
Arrives at Onagawa.
6 October 1944:
At 0830 departs Onagawa with minesweeper W-33.
9 October 1944:
Arrives at Onagawa and departs later that day.
16 October 1944:
Arrives at Onagawa.
18 October 1944:
Departs Onagawa.
21 October 1944:
Arrives at Onagawa.
27 October 1944:
At 0830 departs Onagawa with auxiliary patrol boat KIMPO MARU.
30 October 1944:
Arrives at Onagawa.
4 November 1944:
Departs Onagawa.
7 November 1944:
Arrives at Onagawa.
12 November 1944:
Departs Onagawa.
13 November 1944:
Arrives at Onagawa.
14 November 1944:
Departs Onagawa.
17 November 1944:
Arrives at Onagawa.
20 November 1944:
Departs Onagawa.
21 November 1944:
Arrives at Onagawa.
23 November 1944:
Departs Onagawa.
26 November 1944:
Arrives at Onagawa.
1 December 1944:
Departs Onagawa.
4 December 1944:
Arrives at Onagawa.
8 December 1944:
Departs Onagawa.
11 December 1944:
Arrives at Onagawa and departs later that day.
13 December 1944:
Arrives at Shiogama.
15 December 1944:
Drydocked for repairs for rest of December.
31 December 1944:
Arrives back at Onagawa.
1 January 1945:
Departs Onagawa.
4 January 1945:
Arrives at Onagawa.
10 January 1945:
At 0830 departs Onagawa for Onahama with auxiliary subchaser CHa-88.
13 January 1945:
Arrives at Onagawa.
16 January 1945:
Departs Onagawa.
19 January 1945:
Arrives at Onagawa.
25 January 1945:
At 0830 departs Onagawa with auxiliary minesweeper MISAGO MARU No. 1 and auxiliary picket boat SUYAMA MARU No. 1.
28 January 1945:
Arrives at Onagawa with auxiliary minesweeper MISAGO MARU No. 1.
26 April 1945:
Extensive repairs at Onagawa completed.
28 April 1945:
Departs Onagawa.
29 April 1945:
Arrives at Onagawa.
4 May 1945:
Arrives at Onagawa.
5 May 1945:
Departs Onagawa.
6 May 1945:
Arrives at Onagawa.
8 May 1945:
Departs Onagawa.
9 May 1945:
Arrives at Onagawa and departs later that day.
20 May 1945:
Arrives at Onagawa.
22 May 1945:
Departs Onagawa.
23 May 1945:
Arrives at Onagawa.
28 May 1945:
Departs Onagawa.
14 July 1945:
Off Kamaishi Bay, Honshu. Sunk by Vice Admiral (Admiral posthumously) John S. McCain's (USNA'06) Task Force 38 carrier-based aircraft at 39-20N, 141-58E.
15 September 1945:
Removed from the Navy List.
Thanks for assistance to Mr. Gilbert Casse of France.
-Bob Hackett, Sander Kingsepp and Peter Cundall.
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