ZATSUYOSEN!

(KIRI MARU No. 8 sistership of SHINKO MARU No. 1 GO, drawing – Peter Cundall Collection)

IJN SHINKO MARU No. 1 GO:
Tabular Record of Movement


© 2015-2018 Gilbert Casse and Peter Cundall

Revision 2


E 1938:
Osaka. Laid down by Sanoyasu Zosensho K.K. shipyard for Marui Kisen K.K. as a 934-tons cargo ship.

15 April 1938:
Launched and named SHINKO MARU.

29 June 1938:
Completed and registered at Shikama, Hyogo Prefecture.

23 October 1938:
Requisitioned by the IJN as a general requisitioned transport.

16 November 1938:
Registered in the IJN as an auxiliary gunboat attached to the Kure Naval District under Navy’s instruction No. 962-23. Reserve Lt Iwata Shinichi assumes command.

18 November 1938:
Assigned to the 4th Gunboat Division under Navy’s instruction No. 963.

28 November 1938:
Departs Kure.

25 March 1939:
Departs Anqing, Yangtze River, China.

April 1939:
Rated as gunboat No. 44.

15 May 1939:
Reserve Lt(jg) Ichinose Shiro assumes command.

30 May 1939:
Between Jiujiang and Hagi port, China. Transfers one passenger to auxiliary minesweeper tender NIPPONKAI MARU.

6 July 1939:
Arrives at Jiangyin, Yangtze River, China.

7 July 1939:
Departs Jiangyin and arrives back there later in the day. Departs later.

14 September 1939:
Arrives at Nanking, China.

19 October 1939:
Departs Hagi Port, China.

15 November 1939:
Assigned to the 14th Gunboat Division under Navy’s instruction No. 850.

November 1939:
Rated as gunboat No. 144.

1 May 1940:
Departs medium China waters.

15 November 1940:
Assigned to the 14th Gunboat Division under Navy’s instruction No. 837.

22 August 1941:
Reserve LtCdr Niki Kozo assumes command.

15 October 1941:
Renamed SHINKO MARU No. 1 GO under Navy’s secret instruction No. 9524. Assigned to Vice Admiral Makita Kakusaburo’s (38) Shanghai Special Base Force in Captain (later Rear Admiral) Ohashi Tatsuo’s (40) 14th Gunboat Division also consisting of auxiliary gunboats TOSHO MARU and NISSHO MARU No. 2 under Navy’s instruction No. 1250.

3 December 1941:
At 0900 departs Shipu, China with NISSHO MARU No. 12. Engages in gunnery drill, each gun firing five shots. Arrives back at Shipu later in the day, at 1900.

4 December 1941:
Loads drinking water from IJA transport DAINICHI MARU and later from lighter TOYOKUNI MARU.

6 December 1941:
At 1200 departs Shipu.

8 December 1941:
At 1330 seizes British ship CHEKIANG (ZHEJIANG) at position 28-32N, 122-30E. At 1830 arrives at Taichow (now Taizhou) Islands, China. Assigned that same day to Shanghai District, 8th Vigilance Unit under telegram No. 153.

9 December 1941:
At 0140 departs Taichow Islands and arrives at Shipu later that day at 0750. Hands over CHEKIANG (ZHEJIANG) to auxiliary gunboat NISSHO MARU No. 12. Departs there at 0920 and arrives back at Taichow Islands later in the day at 1400. Seizes British tug MARIE MOLLER (later KYOKKO MARU) towing barge AUTUMNLIGHT.

10 December 1941:
At 0100 departs Taichow Islands. Hands over MARIE MOLLER and AUTUMNLIGHT to auxiliary gunboat DAIGEN MARU No. 7. Seized British cargo ship MARY MOLLER (later KAIKO MARU) is handed over by DAIGEN MARU No. 7 and both ships arrive at Fu Du Waterways, China later in the day.

11 December 1941:
At 1030 departs Fu Du Waterways still escorting MARY MOLLER. Both ships arrive at Dinghai, China later in the day where MARY MOLLER is delivered to Japanese forces in port. Fresh food supplied by lighter SENSHO MARU and fresh water supplied by lighter YORUZAKAME MARU.

13 December 1941:
Loads 32-tons of fuel and 13-tons of fresh water from lighter KORYU MARU.

14 December 1941:
At 0720 departs Dinghai and arrives at Taichow Islands later that same day at 1710.

15 December 1941:
At 0800 departs Taichow Islands on gunnery drill and arrives at Zhuyu (Bamboo Island), China later that day at 1720.

16 December 1941:
At 0800 departs Zhuyu. At 1530, joins a convoy consisting of IJA transports TEIYO (ex-German SAARLAND) CALCUTTA and HIBURI MARUs escorted by destroyer HASU and auxiliary gunboat NISSHO MARU No. 12. At 2230, ends convoy’s escort.

17 December 1941:
At 0400 arrives at Bei Ji Shan Archipelago, China. Departs there at 0900, and arrives at Yuet Ching Bay, China at 1300. Water supplied by auxiliary transport (later auxiliary emergency tanker) HOKUAN MARU. Departs there at 1830m and arrives back at Bei Ji Shan Archipelago later in the day at 2230.

18 December 1941:
At 0610 departs Bei Ji Shan Archipelago. At 0800, takes over escort from auxiliary gunboat NISSHO MARU No. 12 of a convoy consisting of IJA transports TOBA and TOTTORI MARUs and auxiliary gunboat TOMITSU MARU. At 1600, ends escort.

19 December 1941:
At 1215, joins escort of a convoy consisting of IJA transports MEIU, TAMON and KOAN MARUs escorted by auxiliary gunboat NISSHO MARU No. 12. At 1330, ends escort. At 1430, escorts a convoy consisting of IJA transports MANJU, TOTAI, YUBAE and SHINGO MARUs. Escort is ended at 1600. At 1610, escorts a convoy consisting of IJA transports HOKKO, ERIE and HOLLAND MARUs. At 1910, ends escort.

20 December 1941:
At 0820 arrives at Yuet Ching Bay.

21 December 1941:
At 0715 departs Yuet Ching Bay and arrives at Qiqu Archipelago at 0755. Departs there on patrol duty and later engages in ASW combat dropping several DCs. Arrives back at Qiqu Archipelago later in the day.

22 December 1941:
At 0730 departs Qiqu Archipelago and calls at Heiniu Bay. Departs there and arrives at Yuet Ching Bay later that day at 1635.

23 December 1941:
At 1100 departs Yuet Ching Bay and arrives at Taichow Islands later that same day at 1630.

24 December 1941:
At 0700 departs Taichow Islands. At 1415, 20 miles NE of Yu Shan Archipelago escorts a convoy consisting of IJA transports KAISHO, GENZAN and MIKASA MARUs. At 1730, escort is taken over by auxiliary gunboat DAIGEN MARU No. 7. Arrives at Shipu later in the day at 2230.

25 December 1941:
At 0920 departs Shipu on patrol and returns back there later that day at 1430. Loads drinking water from IJA transport DAINICHI MARU and from lighter TOYOKUNI MARU.

26 December 1941:
At 0400 departs Shipu on convoy escort but cannot meet up with convoy and returns back there later that same day at 1700.

28 December 1941:
Food supplied by civilian storeship BANSHU MARU No. 22. At 1600 departs Shipu and arrives at Fu Du Waterways later in the day.

29 December 1941:
Departs Fu Du Waterways and arrives at Dinghai later that day at 0830.

30 December 1941:
At 0700 departs Dinghai escorting captured ships MARIE MOLLER, MARY MOLLER and AUTUMNLIGHT. The convoy arrives at Wusong, entrance of Shanghai later that day at 2400.

31 December 1941:
At 0720 departs Wusong and anchors off Kiangnan shipyard later that day at 1030. Loads fresh food, canteen goods and other sundries.

3 January 1942:
Shifts from anchorage to shipyard pier.

4 January 1942:
Loads coal, diesel fuel and clothing.

5 January 1942:
Loads grain products and fresh water.

6 January 1942:
Maintenance and repairs are completed. At 1340 departs Kiangnan.

7 January 1942:
Arrives at Shipu. Departs there and arrives at Taichow Islands later in the day at 1630.

8 January 1942:
At 0930 departs Taichow Islands and arrives at Zhuyu at 1100. At 1300, lands raiding party. At 1730, troops board back the ship.

9 January 1942:
At 0800 departs Zhuyu. Calls at Sanmen Bay. Departs there and arrives at Nantian Bay later that same day at 1800.

10 January 1942:
At 0300 departs Nantian Bay. At 1330, 25 miles E of Jiu Shan Islands starts escort of a convoy consisting of IJA transports WAKATSU, SHINAI and THAMES MARUs. Later auxiliary gunboat DAIGEN MARU No. 7 joins escort. At 1900, ends escort 14 nautical miles SE of Yushan Islands. Arrives N of Taichow Islands later that day at 2150.

11 January 1942:
At 0300 departs N of Taichow Islands waters and arrives at Taichow Islands later in the day at 0915.

12 January 1942:
Provisioned by auxiliary storeship KOSOKU MARU No. 3.

13 January 1942:
At 0800 departs Taichow Islands and arrives at Yuet Ching Bay later that day at 1500.

14 January 1942:
At 1130 departs Yuet Ching Bay and arrives at Songmen Jiao later that same day at 1430. Water supplied by lighter SUZUHEI MARU.

15 January 1942:
At 0900 departs Songmen Jiao and engages in depth charge and ranging training, and junk inspection. Arrives at Yuet Ching Bay later in the day at 1500.

16 January 1942:
Loads 20-tons of fresh water from civilian cargo ship (C-AK) KATSUYAMA MARU.

17 January 1942:
At 0900 departs Yuet Ching Bay. Calls at Heiniu Bay. Departs there and arrives at North Longshan later that day at 1530.

18 January 1942:
Departs North Longshan on convoy escort duty to meet TAKAOKA MARU and two other ships but cannot meet the convoy and arrives at Yuet Ching Bay later that same day at 1630.

19 January 1942:
At 0730 departs Yuet Ching Bay and arrives at Taichow Islands later in the day at 1350.

20 January 1942:
Water supplied by auxiliary transport KIKUKAWA MARU. At 1120 departs Taichow Islands and arrives at Shipu later that day at 1630.

21 January 1942:
At 0730 departs Shipu and arrives at Dinghai later that same day at 1350. Loads fresh food.

24 January 1942:
At 1000 departs Dinghai and arrives at Jiu Shan Islands later in the day at 1440.

25 January 1942:
At 0300 departs Jiu Shan Islands on convoy escort duty to meet TSURUSHIMA, OSAKA and AKAGISAN MARUs and two others but cannot meet with the ships and arrives at Taichow Islands later that day at 2200.

26 January 1942:
Loads 22-tons of diesel fuel and 30-tons of fresh water from lighter KORYU MARU. At 1300 departs Taichow Islands and arrives at Songmen Jiao later that same day at 1500.

27 January 1942:
At 800 departs Songmen Jiao and arrives at Zhuyu later in the day at 1140. Water supplied by lighter SUZUHEI MARU.

28 January 1942:
At 0750 departs Zhuyu and arrives at Taichow Islands later that day at 1800.

29 January 1942:
At 0400 departs Taichow Islands. At 0730, 15 miles S of Taichow Islands meets up with destroyer HASU and escorts a convoy consisting of IJA transports LISBON, KOFUKU, UME, DURBAN, KAIMEI, KAYO and SHINSEI MARUs, and civilian passenger/cargo ship (C-APK) FUJI MARU. At 1630, escort is taken over by minelayer SOKUTEN and SHINKO MARU No. 1 GO is detached.

30 January 1942:
At 0010 arrives at Taichow Islands. Food supplied by civilian storeship BANSHU MARU No. 22.

31 January 1942:
At 0430 departs Taichow Islands to meet up with convoy consisting of KUWAYAMA MARU and NAGANO MARUs.

1 February 1942:
At 1120 arrives back at Taichow Islands.

3 February 1942:
Supplied with fresh food.

4 February 1942:
At 0700 departs Taichow Islands. Searches for captured Norwegian salvage ship HALLDOR (later HARUTA MARU) and British cargo ship ARGUS (later SHINNAN MARU). Arrives at Shipu later that same day at 1700. Loads fresh water from lighters YOROZUKAME and TOYOKUNI MARUs.

5 February 1942:
At 0700 departs Shipu. Searches for HALLDOR and ARGUS and arrives at Dinghai later in the day at 1400.

6 February 1942:
Loads luggage from civilian cargo ship (C-AK) KATSUYAMA MARU.

8 February 1942:
At 0930 departs Dinghai and arrives at Shipu later that same day at 1610.

9 February 1942:
Water supplied by civilian cargo ship (C-AK) KAIYO MARU and IJA transport DAINICHI MARU. At 0850 departs Shipu and arrives at Taichow Islands at 1400. Departs there to investigate an explosion heard SE of the area and returns back to port later in the day at 1930.

10 February 1942:
At 0700 departs Taichow Islands. Discovers debris of small ship ANBA MARU at position 27-55N, 121-48E. At 1000 joins with DAIGEN MARU No. 7 in a search of the area.

11 February 1942:
At 1700 arrives at Taichow Islands.

13 February 1942:
Fresh food supplied.

15 February 1942:
At 0730 departs Taichow Islands and arrives at Fu Du Waterways later that day at 1915.

16 February 1942:
At 0700 departs Fu Du Waterways and arrives at Wusong later that same day at 2100.

17 February 1942:
Departs Wusong and arrives at Kiangnan later in the day at 1000.

18 February 1942:
Tethers to auxiliary harbour ship HAYASE (ex-Chinese CHIN KIANG).

20 February 1942:
Supplied with fresh food.

24 February 1942:
Supplied with fresh food.

25 February 1942:
Supplied with fresh water.

27 February 1942:
Departs Kiangnan and tethers to buoy. Supplied with water, diesel fuel and stored grain products.

28 February 1942:
Departs Kiangnan on trials and arrives at Shanghai, mooring to buoy No. 6. Loads ammunition.

1 March 1942:
At 1030 departs Shanghai escorting SUMIYOSHI MARU. Arrives at Wusong later in the day at 1250.

2 March 1942:
At 0740 departs Wusong still escorting SUMIYOSHI MARU and arrives at Qiqu Islands later that day.

3 March 1942:
At 0300 departs Qiqu Islands still escorting SUMIYOSHI MARU and arrives at Huoyoushan later that same day at 2200.

4 March 1942:
At 0630 departs Huoyoushan and arrives at Fuyao Island at 1530. Auxiliary gunboat DELHI MARU takes over escort. Departs there and arrives at North Longshan later that day at 2130.

5 March 1942:
At 0730 departs North Longshan and arrives at Taichow Islands later that same day at 1600. Water supplied by lighters TOYOKUNI and HEISHICHI MARUs.

6 March 1942:
Supplied with fresh food.

8 March 1942:
At 0900 departs Taichow Islands and arrives at Huoyoushan later in the day at 1700.

9 March 1942:
At 0500 departs Huoyoushan on escort duties but cannot join the convoy (NICHIRYU, KUROHIME, DELAGOA, KOYU, KIBI, KAMO and TAMAHOKO MARUs) and arrives at Taichow Islands later that day at 1615.

10 March 1942:
At 0030 departs Taichow Islands on escort duties but cannot join presumably the same convoy and arrives at Shipu later that same day at 1630.

11 March 1942:
Water supplied by lighter SUZUHEI MARU.

12 March 1942:
At 1545 departs Shipu and arrives at Jiushan Archipelago later in the day at 1800.

14 March 1942:
At 0630 departs Jiushan Archipelago and arrives at Taichow Islands later that day at 1315. Loads 16-tons of fuel and 19-tons of fresh water from lighter KORYU MARU.

15 March 1942:
At 0800 departs Taichow Islands and arrives at Bei Ji Shan Archipelago later that same day at 1930.

16 March 1942:
At 0600 departs Bei Ji Shan Archipelago and arrives at Taichow Islands later in the day at 2200. Assigned to destroy a power boat under Security instruction No. 8-843.

17 March 1942:
At 0900 departs Taichow Islands and arrives at Shipu later that day at 1645.

18 March 1942:
Supplied with fresh food.

19 March 1942:
At 0730 departs Shipu. Inspects two junks and arrives at Niubi Shan Strait later that same day at 1910.

20 March 1942:
At 0630 departs Niubi Shan Strait and arrives at Dinghai later in the day at 1000.

21 March 1942:
Supplied with fresh food and water by lighter HEISHICHI MARU.

23 March 1942:
At 1000 departs Dinghai and arrives at Jiushan Archipelago later that day at 1640.

24 March 1942:
At 0400 departs Jiushan Archipelago. At 1030 24 miles SSE of Dongting Island, starts escorting IJA transports SHINTEN MARU. The ship is sailing in convoy with BRISBANE MARU but the latter has apparently detached. At 1315 BRISBANE MARU rejoins.

25 March 1942:
At 0500, ends escort. At 0530 meets up and briefly escorts BRISBANE MARU. Arrives at Yuet Ching Bay later that same day at 1230. Loads 20-tons of fresh water from civilian cargo ship (C-AK) KATSUYAMA MARU.

26 March 1942:
At 1300 departs Yuet Ching Bay and arrives at Heiniu Bay later in the day at 1535.

28 March 1942:
At 0730 departs Heiniu Bay and arrives at Dongtou Shandong Fang later that day at 2000.

29 March 1942:
At 0900 departs Dongtou Shandong Fang and arrives at Yuet Ching Bay later that same day at 1200.

30 March 1942:
Supplied with fresh food. At 1400 departs Yuet Ching Bay and arrives at Songmen Jiao later in the day at 1840.

31 March 1942:
At 0730 departs Songmen Jiao and arrives at Taichow Islands later that day.

1 April 1942:
At 1600 departs Taichow Islands on patrol mission.

2 April 1942:
At 1000 arrives back at Taichow Islands. Loads 21-tons of diesel fuel and 20-tons of fresh water from lighter KORYU MARU.

3 April 1942:
Fresh food supplied. At 1430 departs Taichow Islands and arrives at Fu Du Waterways later that same day at 2340.

4 April 1942:
At 0700 departs Fu Du Waterways and arrives at Dinghai later in the day at 0930.

6 April 1942:
Water supplied by civilian cargo ship (C-AK) KAIYO MARU and IJA transport DAINICHI MARU.

7 April 1942:
At 1130 departs Dinghai and arrives at Shipu later that day at 1900.

8 April 1942:
At 0630 departs Shipu.

9 April 1942:
At 0930 arrives at Taichow Islands.

10 April 1942:
Supplied with fresh food. At 0700 departs Taichow Islands on patrol and returns back there later that same day, at 1140.

11 April 1942:
At 0700 departs Taichow Islands on ASW sweep. Drops DCs.

12 April 1942:
At 0700 arrives back at Taichow Islands. Water supplied by lighters TOYOKUNI and HEISHICHI MARUs.

13 April 1942:
At 1130 departs Taichow Islands on ASW sweep.

14 April 1942:
At 1120 arrives back at Taichow Islands.

15 April 1942:
Supplied with fresh food.

16 April 1942:
Loads 14-tons of diesel fuel from lighter KORYU MARU.

19 April 1942:
At 0900 departs Taichow Islands on patrol and returns back there later in the day at 1935.

20 April 1942:
At 0900 departs Taichow Islands and arrives at Shipu at 1645. Lands a raiding party. At 1900, troops come back aboard.

21 April 1942:
Supplied with fresh water by IJA transport KANAN MARU.

22 April 1942:
Supplied with fresh food.

23 April 1942:
At 0900 departs Shipu on gunnery drill by auxiliary gunboats DAIGEN MARU No. 7, TOSHO MARU and NISSHO MARU No. 12. Tows a target.

24 April 1942:
At 1040 arrives at Dinghai.

25 April 1942:
Water supplied by IJA transport DAINICHI MARU.

26 April 1942:
Supplied with fresh food.

27 April 1942:
At 1000 departs Dinghai.

28 April 1942:
At 1110 arrives at Yuet Ching Bay. Fresh water supplied by civilian cargo ship (C-AK) KATSUYAMA MARU.

30 April 1942:
At 1100 departs Yuet Ching Bay and arrives at Heiniu Bay later that day at 1800.

1 May 1942:
At 0700 departs Heiniu Bay and arrives at Taichow Islands later that same day at 1930.

2 May 1942:
Refueled by auxiliary oiler JUKO MARU. At 1200 departs Taichow Islands and inspects three junks. Arrives at Yuet Ching Bay later in the day, at 1900.

4 May 1942:
At 0900 departs Yuet Ching Bay and arrives at Heiniu Bay later that day, at 1130. Supplied with fresh food.

5 May 1942:
At 0530 departs Heiniu Bay and disposes of a drifting mine by MG fire.

6 May 1942:
At 0030 arrives at Taichow Islands. Departs there at 0850, and arrives off Jue Chi later that same day, at 1530.

7 May 1942:
At 0600 departs Jue Chi waters.

8 May 1942:
At 0945 arrives off Wusong. Departs there and arrives at Kiangnan, tethering at No. 2 buoy.

9 May 1942:
Shifts to pier.

10 May 1942:
Delivers seized goods to military forces.

11 May 1942:
Supplied with stored grain products.

12 May 1942:
Supplied with fresh water and canteen goods.

13 May 1942:
Tethered to buoy and refueled.

14 May 1942:
At 1430 departs Kiangnan.

15 May 1942:
At 0030 arrives at Qiqu Archipelago. At 0600 departs there and arrives at Shipu later in the day, at 1800.

16 May 1942:
At 0700 departs Shipu and arrives at Langji Shan, at 1020. Departs there at 1200, and arrives at Taichow Islands later that da, at 1420.

20 May 1942:
Assigned to the 2nd Patrol Corps. At 0500 departs Taichow Islands and arrives at Shipu later that same day, at 1030. Fresh water supplied. Refueled by auxiliary oiler JUKO MARU.

21 May 1942:
Provisioned by auxiliary storeship ZUIHO MARU. At 1430 departs Shipu and arrives at Zhuyu later in the day, at 1850.

22 May 1942:
At 0840, lands a raiding party at Kinmen Island.

24 May 1942:
At 0700 departs Zhuyu and arrives at Shipu later that day, at 1020.

26 May 1942:
Assigned to the 2nd Patrol Corps under Shanghai District telegram No. 4. At 1300 departs Shipu with auxiliary gunboats DAIGEN MARU No. 7 and NISSHO MARU No. 12 and and at 1400 all arrive at Shepan waters, anchoring at 1900. At 2100, DAIGEN MARU No. 7 fires warning shots as intimidation measure.

27 May 1942:
At 1200 all ships depart Shepan waters and arrives at Sanmen Bay at 1800.

28 May 1942:
At 0500 the three ships depart Sanmen Bay and arrives at Taichow Islands later that day, at 1130. Shells Langji Shan and returns to Taichow Islands later that day. Provisioned by auxiliary storeship BANSHU MARU No. 21.

29 May 1942:
Refueled by lighter KORYU MARU. At 0945 the three ships depart Taichow Islands. Shells Songmen Island and arrives at Yuo You Shan later that same day. Lands 12 raider troops.

30 May 1942:
At 0315, embarks the raiding party. At 0430 departs Yuo You Shan and arrives at Yuet Ching later that same day at 0730. Fires five warning shots.

31 May 1942:
At 0955 departs Yuet Ching and arrives at Yuet Ching Bay later in the day at 1130. At 1800, lands a raiding party.

1 June 1942:
The 2nd Patrol Corps is officially activated under Shanghai District secret instruction No. 108. Assigned to the 1st Raid Corps under instruction No. 1.

2 June 1942:
At 0600 departs Yuet Ching Bay with auxiliary gunboats DAIGEN MARU No. 7 and NISSHO MARU No. 12 and arrives at Yuet Ching at 0710. Supplied with fresh water. Departs there at 1400 with the other two auxiliary gunboats and arrives at Yuet Ching Bay later that day, at 1530. Fires three warning shots.

3 June 1942:
At 0600, lands a raiding party. At 0715, fires five warning shots to protect minesweeping party. Fresh food supplied by lighter SENSHO MARU. At 1200, departs Yuet Ching Bay with auxiliary gunboat DAIGEN MARU No. 7, arriving at 1430 at Heiniu Bay. At 1850, embarks the raiding party.

4 June 1942:
At 0610 departs Heiniu Bay with auxiliary gunboats TOSHO MARU and DAIGEN MARU No. 7 and calls at Daiyu Bay at 1150. At 1200, lands a raiding party. Troops board the ship at 1540. Departs there at 1730 with the others and arrives at Shagang Port later that same day, at 1845.

5 June 1942:
At 0430, lands a raiding party. At 0600, tethers to rolling anchor. At 1200, Troops board the ship. At 1230, Departs Shagang port. At 1430, fires 10 shells at Jin Shenwei. At 2050, arrives at Yuet Ching Bay.

6 June 1942:
Loads luggage from IJN tanker (B-AO) TAKATORI MARU No. 1. Refueled and supplied with fresh water by lighter KORYU MARU. At 0730 departs Yuet Ching Bay and arrives at western Taichow Islands later in the day, at 1300.

7 June 1942:
At 0100 departs western Taichow Islands and arrives at Qiqu Archipelago later that day, at 0645.

8 June 1942:
At 0500 departs Qiqu Liedao Island with auxiliary gunboats NISSHO MARU No. 12, TOSHO MARU and DAIGEN MARU No. 7 and all the ships arrive at Fuyao Island later in the day, at 1645.

9 June 1942:
At 0600 all four ships depart Fuyao Island and arrives at Sansha later that day. At 0600, lands a raiding party. At 1527, troops board the ship.

10 June 1942:
At 0600 the four ships depart Sansha and arrive at Pei Chi Shan (North Island) later that same day, at 0830. At 0845, lands a raiding party. At 1600, troops re-embark.

11 June 1942:
At 0740 departs Pei Chi Shan (North Island) with NISSHO MARU No. 12 and DAIGEN MARU No. 7 and arrives at Daikin at 0720. At 0730, lands a raiding party. At 1330, embarks the raiding party. At 1400 the three ships depart Daikin and arrives at Fu Ning Bay later in the day, at 1635.

13 June 1942:
At 0550 departs Fu Ning Bay towing a small gunboat. Auxiliary gunboats DAIGEN MARU No. 7, NISSHO MARU No. 12 and TOSHO MARU sail with the ship. The ships arrive SW of Nanji Shan Archipelago. The ships depart there and arrive at Qiqu Archipelago later that day, at 2000.

15 June 1942:
At 0545 departs Qiqu Archipelago alone and arrives at Taichow Islands later that same day, at 1120. Fresh food supplied by lighter SENSHO MARU. Supplied with fresh water. Fires warning shots.

16 June 1942:
Refueled by lighter KORYU MARU.

17 June 1942:
At 1350 departs Taichow Islands with NISSHO MARU No. 12, TOSHO MARU and DAIGEN MARU No. 7 and arrives at Sanmen Bay with DAIGEN MARU No.7 only later that day, at 1920.

18 June 1942:
At 0520 departs Sanmen Bay with DAIGEN MARU No. 7 and arrives off Jian Keng Point. At 0630, lands a raiding party Departs there and arrives at Sanmen Bay at 1100. At 1430, boards the raiding party.

19 June 1942:
At 0800 departs Sanmen Bay with DAIGEN MARU No. 7 and both arrives at Shipu later that same day at 2000.

20 June 1942:
At 0500 departs Shipu and arrives at Dinghai later that same day, at 1140.

23 June 1942:
Supplied with fresh food and water. Loads luggage from civilian cargo ship (C-AK) KATSUYAMA MARU.

24 June 1942:
At 0930 departs Dinghai to escort a convoy and arrives at Shipu later in the day, at 1530.

25 June 1942:
At 0700 departs Shipu and arrives at Yuet Ching Bay at 1640.

26 June 1942:
At 0830 departs Yuet Ching Bay and arrives at Heiniu Bay later that day, at 1430.

28 June 1942:
At 0700 departs Heiniu Bay and arrives at Yuet Ching Bay later that same day, at 0900.

29 June 1942:
Fresh food supplied.

30 June 1942:
At 0700 departs Yuet Ching Bay with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Taichow Islands later that day, at 1420. Refueled and fresh water supplied by lighter KORYU MARU.

2 July 1942:
Fresh water supplied.

3 July 1942:
Fresh food supplied.

5 July 1942:
Assigned to assist Raiding Force under secret instruction No. 5. Departs Taichow Islands. At 0800, takes over from destroyer MIKAZUKI escort of C1 convoy (No. 229) consisting of civilian (C-AK) (later auxiliary) transport SENZAN MARU and HAVRE, TOMIURA, SEISHO, SHINTO, KOZAN and AFRICA MARUs

6 July 1942:
At 1630, ends escort at the 33N parallel.

7 July 1942:
At 2015 arrives at Shipu.

8 July 1942:
At 0700 departs Shipu initially with auxiliary gunboat TOSHO MARU, and arrives alone at Qiqu Archipelago later that day, at 1745.

9 July 1942:
At 0800, the minesweeping party starts operating in Shantou Strait. At 1245, lands a raiding party on training mission. Departs Qiqu Archipelago and arrives at Yuet Ching Bay. At 2000, re-embarks the raiding party. At 2130, re-embarks the the minesweeping party. At 2140, fires warning shots.

10 July 1942:
At 1400 DAIGEN MARU No. 7, TOSHO MARU and SHINKO MARU No. 1 GO depart Yuet Ching Bay and all arrive off Luian later that day, at 1940.

11 July 1942:
At 0530, a minesweeping party starts operating in Fei Yun river.

12 July 1942:
At 0600 auxiliary gunboats NISSHO MARU No. 12, TOSHO MARU and SHINKO MARU No. 1 GO depart Feiyun Jiang (Luian) waters and all arrive at Heiniu Bay later that day, at 1000. Fresh food supplied.

14 July 1942:
At 0800 auxiliary gunboats DAIGEN MARU No. 7, NISSHO MARU No. 12, TOSHO MARU and SHINKO MARU No. 1 GO all depart Heiniu Bay and at 1140 arrives at Yuet Ching Bay together. Refueled and fresh water supplied by lighter KORYU MARU. At 1730, the minesweeping party having completed operation in Fei Yun river, boards the ship.

16 July 1942:
At 0630, a minesweeping party starts operation in the strait. Troops re-embark at 1930.

17 July 1942:
At 0300, the minesweeping party resumes operation in the strait. Loads ammunition, quartermaster items and stored grain products from IJN tanker (B-AO) TAKATORI MARU No. 1. Loads fresh food from auxiliary storeship BANSHU MARU No. 21.

19 July 1942:
At 1830, a raiding party boards the ship.

22 July 1942:
At 1030, the minesweeping party boards the ship.

24 July 1942:
At 0900, the minesweeping party resumes operation. Refueled by lighter KORYU MARU.

25 July 1942:
At 1830, the minesweeping party comes back aboard.

26 July 1942:
Fresh food supplied. At 1100 auxiliary gunboats DAIGEN MARU No. 7, NISSHO MARU No. 12, TOSHO MARU and SHINKO MARU No. 1 GO all depart Yuet Ching Bay and arrives off Ao Jiang later that day, at 1800.

27 July 1942:
At 0600, the raiding party departs. Seizes one small steamboat. At 1530, the raiding party comes back aboard.

28 July 1942:
At 0700 all four auxiliary gunboats depart Ao Jiang waters and arrives at Yuet Ching Bay at 1330. Delivers the captured boat to Military Forces. Fresh water supplied by IJN tanker (B-AO) TAKATORI MARU No. 1.

29 July 1942:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.

3 August 1942:
Refueled and fresh water supplied from tanker KORYU MARU.

4 August 1942:
Fresh food supplied by lighters.

5 August 1942:
At 1000 departs Yuet Ching Bay and arrives at Dong Gao Island at 1800.

6 August 1942:
At 0730, lands a raiding party. Troops come back aboard at 1755. At 1810 departs Dong Gao Island. At 1815, fires eight shells at a junk.

7 August 1942:
At 0825 arrives at Dinghai. Departs there at 1245 and at 2230 arrives at Kinmen Island (Quemoy).

8 August 1942:
Tethers to rolling anchor No. 2. At 1430, lands a raiding party at Nainpin Island. Troops board ship at 1800.

9 August 1942:
At 0600 departs Kinmen Island (Quemoy) with auxiliary gunboats NISSHO MARU No. 12 and TOSHO MARU and calls at Sanmen Bay. Departs there and at 1030 all three ships arrive at Shepan Yang.

11 August 1942:
At 0545 departs Shepan Yang with auxiliary gunboats NISSHO MARU No. 12 and TOSHO MARU and at 1030 arrives at Shipu, alone.

13 August 1942:
Bunkered by tanker TAKATORI MARU No. 1.

14 August 1942:
At 0200 departs Shipu to meet northbound convoy. At 0730, starts convoy’s escort.

15 August 1942:
At 0200 arrives at Wusong (Wusung) with convoy. At 0700 departs Wusong waters and arrives at Kiangnan at 0900.

16 August 1942:
Supplied with canteen goods and fresh water.

17 August 1942:
Supplied with fresh food.

22 August 1942:
Supplied with canteen goods and stored grain products.

23 August 1942:
Loads quartermaster items.

25 August 1942:
Loads quartermaster items, fresh food, fresh water and other sundries.

26 August 1942:
Embarks 12 passengers. At 1230 departs Kiangnan.

27 August 1942:
At 1600 arrives at Shipu. Disembarks 10 passengers.

28 August 1942:
At 0634 departs Shipu on ASW sweep.

29 August 1942:
At 0715 arrives at Qiqu Archipelago. Supplied with fresh water by a water tanker. Embarks passengers.

30 August 1942:
At 1700 departs Qiqu Archipelago with destroyer TSUGA on ASW sweep.

1 September 1942:
At 1200 arrives at Fuyao Island.

2 September 1942:
At 0700 departs Fuyao and arrives at Yuet Ching Bay later in the day, at 1800.

3 September 1942:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.

6 September 1942:
At 0900 departs Yuet Ching Bay with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Ni Yushan later that day. At 0900, lands a raiding party. Troops come back aboard at 1930.

7 September 1942:
At 0630 departs Ni Yushan Yuet Ching Bay still with DAIGEN MARU No. 7, and arrives at Tongpan Shan, at 0600. At 0630, lands a raiding party. Troops come back aboard at 1100. Departs there at 1125, still with DAIGEN MARU No. 7, and arrives at Nanji Shan later in the day, at 1430.

8 September 1942:
At 0700 departs Nanji Shan with DAIGEN MARU No. 7 and arrives at Taichow Islands later that day, at 1615. Auxiliary gunboat NISSHO MARU No. 12 joins en route.

9 September 1942:
Rations supplied by a harbour boat.

10 September 1942:
At 0630 departs Taichow Islands with auxiliary gunboats NISSHO MARU No. 12, TOSHO MARU and DAIGEN MARU No. 7 and arrives at Kinmen Island (Quemoy) later that same day, at 0920. At 0930, lands a raiding party. Troops come back aboard at 1700.

11 September 1942:
At 0630 the four auxiliary gunboats depart Kinmen Island (Quemoy) and arrives at Shipu later in the day, at 1200.

12 September 1942:
At 0700 departs Shipu and arrives at Sanmen Bay later that day, at 1045.

14 September 1942:
At 0900 departs Sanmen Bay and arrives at Taichow Islands later that same day, at 1600.

15 September 1942:
Fresh food supplied by a lighter. Refueled and fresh water supplied by lighter KORYU MARU. Assigned that same day to the 8th Patrol Corps under Shanghai District telegram No. 43.

16 September 1942:
At 0830 departs Taichow Islands and arrives at Shipu later that day, at 1630.

20 September 1942:
Supplied with fresh water by a water tanker.

22 September 1942:
Departs Shipu and arrives at Dinghai later that same day, at 1800.

24 September 1942:
Fresh food supplied by a lighter.

25 September 1942:
At 0930 departs Dinghai.

26 September 1942:
At 1030 arrives at Qiqu Archipelago.

28 September 1942:
At 0800 departs Qiqu Archipelago. Inspects seven junks and arrives at Yuet Ching Bay later in the day, at 1700.

2 October 1942:
Fresh food supplied by a lighter.

3 October 1942:
At 0830 departs Yuet Ching Bay.

4 October 1942:
At 1530 arives at Songmen Jiao.

5 October 1942:
At 0910 departs Songmen Jiao and arrives at Heiniu Bay later that day, at 1825. Inspects nine junks.

7 October 1942:
At 0900 departs Heiniu Bay and arrives at Yuet Ching Bay later that same day, at 1030.

8 October 1942:
Refueled by auxiliary oiler JUKO MARU. Fresh food supplied by a lighter.

10 October 1942:
At 0830 departs Yuet Ching Bay and arrives at Heiniu Bay later in the day, at 1830.

12 October 1942:
At 0700 departs Heiniu Bay and arrives at Taichow Islands later that day, at 1620.

13 October 1942:
At 0430 departs Taichow Islands and begins escorting SAINEI MARU and arrives at Fu Du Waterways later that same day, at 1800.

14 October 1942:
Departs Fu Du Waterways and arrives at Dinghai later in the day, at 0930.

17 October 1942:
At 0930 departs Dinghai and arrives at Shipu later that day, at 1645.

18 October 1942:
At 0700 departs Shipu and arrives at Taichow Islands later that same day, at 1440.

19 October 1942:
Refueled and fresh water supplied by lighter KORYU MARU.

20 October 1942:
Tethers to rolling anchor and undergoes repair to her stern. Fresh water supplied by IJN tanker (B-AO) TAKATORI MARU No. 1.

21 October 1942:
Departs Taichow Islands and arrives at Shipu. Departs there later in the day, at 1900.

23 October 1942:
At 0930 arrives at Taichow Islands.

25 October 1942:
At 1230 departs Taichow Islands escorting with destroyer HASU a convoy consisting of IJA transports NISSHU (NICHIHIDE) MARU and MEIU MARUs.

26 October 1942:
At 0130, ends convoy’s escort E of Seven Island. Arrives at Fuyao Island later that day, at 0800.

29 October 1942:
At 0700 departs Fuyao Island and arrives at Heiniu Bay later that day, at 1620.

30 ~ 31 October 1942:
Undergoes masts reinforcement.

31 October 1942:
Reserve LtCdr Niki Kozo is confirmed as CO.

1 November 1942:
At 0900 departs Heiniu Bay and arrives at Yuet Ching Bay later that same day, at 1200.

4 November 1942:
At 0730 departs Yuet Ching Bay on junk inspection and arrives at Taichow Islands later in the day, at 1420.

6 November 1942:
Refueled and fresh water supplied by lighter KORYU MARU.

7 November 1942:
Fresh food supplied by a lighter.

8 November 1942:
At 0730 departs Taichow Islands and arrives at Yuet Ching Bay later that day, at 1430.

11 November 1942:
At 0900 departs Yuet Ching Bay and arrives at Taichow Islands later that same day, at 1700.

13 November 1942:
At 0730 departs Taichow Islands on junk inspection and arrives at Shipu later in the day, at 1445.

14 November 1942:
At 0730 departs Shipu with auxiliary gunboats DAIGEN MARU No. 7 and TOSHO MARU and arrives at Fu Du Waterways later that day, at 1500.

15 November 1942:
At 0630 departs Fu Du Waterways and arrives off Wusong later that same day, at 2150.

16 November 1942:
At 0800 departs Wusong waters and arrives at Kiangnan later that same day, at 1045. Tethers to buoy No. 4. Undergoes hull repairs.

17 November 1942:
Unloads ammunition and gunpowder.

18 November 1942:
Loads rations and other canteen goods. Unloads gun equipment for repairs.

25 November 1942:
Enters drydock No. 2 at Kiangnan shipyard for maintenance and repairs.

2 December 1942:
Undocked. Tethers to pier.

4 December 1942:
Loads gunpowder, ammunition and other quartermaster items.

7 December 1942:
Undergoes outer hull full coating. Replenishes fuel and loads coal.

8 December 1942:
Tethers to buoy No. 3.

9 December 1942:
Departs Kiangnan on trials and arrives back there later that day, tethering again at buoy No. 3.

10 December 1942:
Supplied with fresh food and canteen goods.

11 December 1942:
Loads consignment goods. At 1400 departs Kiangnan.

12 December 1942:
At 1430 arrives at Shipu.

14 December 1942:
At 0900 departs Shipu and arrives at Taichow Islands later that day, at 1405.

15 December 1942:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.

18 December 1942:
At 0800 departs Taichow Islands and arrives at Heiniu Bay later that same day, at 1415.

19 December 1942:
At 0800 departs Heiniu Bay and arrives at Fuyao Island later in the day, at 1900. Later escorts MATSUE MARU.

21 December 1942:
Ceases escort and returns to Heiniu Wan.

22 December 1942:
At 0730 departs Heiniu Bay on ASW sweep.

23 December 1942:
At 0219 arrives at Taichow Islands. At 0815 departs there and arrives at Niubi Shan Strait later that same day, at 1650.

24 December 1942:
At 0710 departs Niubi Shan Strait and arrives at Dinghai later in the day, at 1520.

27 December 1942:
At 0630 departs Dinghai and arrives at Shipu later that day, at 1600.

28 December 1942:
At 0900 departs Shipu and arrives at Taichow Islands later that same day.

29 December 1942:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.

31 December 1942:
At 0415 departs Taichow Islands and arrives at Nantian Bay later in the day, at 0910. At 1015, lands a raiding party. Troops come back aboard at 1900.

1 January 1943:
At 0700, lands a raiding party. At 0830, fires eight covering shots. Departs Nantian Bay and arrives at Shipu later that day, at 1600. Troops come back aboard at 1900.

3 January 1943:
Provisioned by auxiliary storeship SUMIYOSHI MARU.

6 January 1943:
At 1000 departs Shipu and arrives at Taichow Islands later in the day at 1850.

8 January 1943:
Refueled and fresh water supplied by lighter KORYU MARU.

9 January 1943:
At 0800 departs Taichow Islands and calls at Yuet Ching Bay, at 13224. Departs there at 1804. and arrives at Heiniu Bay later that day.

10 January 1943:
At 0800 departs Heiniu Bay and arrives at Incog Island later that same day, at 1400.

11 January 1943:
At 1400 departs Incog Island and arrives at Fuyao Island later in the day, at 1500.

13 January 1943:
Comes alongside IJN requisitioned ship (B-AK) RYUSEI (ex-Chinese Maritime Customs ship LIU HSING) and loads fresh water.

14 January 1943:
At 0800 departs Fuyao Island and calls at Incog Island. Departs there at 1400 and arrives at Heiniu Wan later that day.

15 January 1943:
At 0800 departs Heiniu Wan and arrives at Shipu later that same day, at 1818.

16 January 1943:
At 1100 departs Shipu and arrives at Fu Du Waterways later in the day at 1600. Fresh food supplied by auxiliary storeship BANSHU MARU No. 16.

17 January 1943:
At 0850 departs Fu Du Waterways and arrives at Dinghai later that day at 1010.

20 January 1943:
At 1000 departs Dinghai and arrives at Shipu later that same day, at 1654.

26 January 1943:
At 0900 departs Shipu and arrives at Taichow Islands later in the day, at 1447.

27 January 1943:
At 1200 lands a raiding party. Troops come back aboard at 1800.

29 January 1943:
At 1158 departs Taichow Islands and arrives at Fu Du Waterways later that day, at 1900.

30 January 1943:
At 0700 departs Fu Du Waterways and arrives at Hengsha later that same day, at 1745.

31 January 1943:
At 0830 departs Hengsha and arrives at Kiangnan later in the day at 1200.

3 February 1943:
Supplied with stored grain products and quartermaster items.

5 February 1943:
Supplied with fresh food and canteen goods.

8 February 1943:
At 1445 departs Kiangnan and arrives at unknown amnchorage later that day, at 2000.

9 February 1943:
At 0730 departs unknown anchorage and arrives at Jiu Shan Islands later that same day, at 1840.

10 February 1943:
At 0900 departs Jiu Shan Islands and arrives at Shipu later in the day, at 1100.

12 February 1943:
At 1400 departs Shipu and arrives at Taichow Islands later that day, at 1900.

13 February 1943:
At 0800 departs Taichow Islands and calls at Yuet Ching Bay. Departs there and arrives at Heiniu Bay later that same day, at 1630.

14 February 1943:
At 0800 departs Heiniu Bay and calls at Incog Island lighthouse. Departs there and arrives at Fuyao Island later in the day, at 1520.

19 February 1943:
At 1400 departs Fuyao Island and calls at Incog Island lighthouse. Departs there later that day.

20 February 1943:
Arrives at Shipu. Fresh food supplied. Departs Shipu and arrives at Fu Du Waterways later that same day, at 2330.

21 February 1943:
Departs Fu Du Waterways and arrives at Dinghai later in the day at 0930.

24 February 1943:
At 0930 departs Dinghai and arrives at Taichow Islands later that day, at 2000.

25 February 1943:
Moves to rolling anchor. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21. Refueled by lighter KORYU MARU.

27 February 1943:
At 0730 departs Taichow Islands escorting SEKIEI MARU and calls at Pi Shan. Departs there and arrives at Kanmen Port later that same day, at 1630.

28 February 1943:
At 0730 departs Kanmen Port still escorting SEKIEI MARU and calls at Dong Tou Chia. Departs there and arrives at Yuet Ching Bay later in the day, at 1815.

1 March 1943:
At 1430 departs Yuet Ching Bay and arrives at Heiniu Bay later that day, at 1650.

3 March 1943:
At 0800 departs Heiniu Bay and calls at Dayu Jiao. Departs there and arrives back at Heiniu Bay later that same day, at 1730.

4 March 1943:
At 0730 departs Heiniu Bay still escorting SEKIEI MARU and arrives at Nanji Shan later in the day, at 1100.

5 March 1943:
At 0800 departs Nanji Shan and arrives at Songmen Jiao later that day, at 1810.

6 March 1943:
At 0720 departs Songmen Jiao and calls at Taichow Islands. Departs there and arrives at Shipu later that same day, at 1720.

7 March 1943:
At 1100 departs Shipu and arrives at Fu Du Waterways later in the day, at 1600.

8 March 1943:
At 0730 departs Fu Du Waterways and arrives at Dinghai later that day, at 0930. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21. Refueled and fresh water supplied by lighter KORYU MARU.

10 March 1943:
At 0920 departs Dinghai. Engages in ASW sweep and drops one DC.

12 March 1943:
Ends ASW sweep and arrives at Taichow Islands later that day, at 1720.

14 March 1943:
At 0730 departs Taichow Islands and arrives at Yuet Ching Bay later that same day, at 1240.

15 March 1943:
At 0830 departs Yuet Ching Bay on ASW sweep and arrives back there later in the day, at 1910.

16 March 1943:
At 1630 departs Yuet Ching Bay and arrives back at Yuet Ching at 1920. Fires eight gunshots at enemy barracks. Departs there and arrives at Yuet Ching Bay later that day.

17 March 1943:
Refueled and fresh water supplied by lighter KORYU MARU.

18 March 1943:
At 1400 departs Yuet Ching Bay and arrives at Heiniu Bay later that same day, at 1640.

19 March 1943:
At 1000 departs Heiniu Bay and calls at Incog Island. Departs there and arrives at Fuyao Island later in the day, at 1840.

24 March 1943:
At 0750 departs Fuyao Island on ASW sweep and arrives back there later that day, at 1800.

25 March 1943:
At 0730 departs Fuyao Island and calls at Dong Gua lighthouse. Departs there and arrives back at Fuyao Island later that same day, at 1800.

26 March 1943:
At 1300 departs Fuyao Island and arrives at Taichow Islands later in the day, at 1750.

27 March 1943:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 16.

28 March 1943:
At 0730 departs Taichow Islands on ASW sweep and calls at Fu Du Waterways, at 1820.

29 March 1943:
At 0700 departs Fu Da Waterways. At 1930 arrives at Wusong.

30 March 1943:
At 0800 departs Wusong and arrives at Kiangnan later that same day, at 1020.

1 ~ 2 April 1943:
Loads canteen goods and stored grain products.

2 April 1943:
Loads quartermaster items.

4 April 1943:
Refueled and resupplied with fresh food.

5 April 1943:
At 1300 departs Kiangnan.

6 April 1943:
At 1000 arrives at Dinghai. At 1400 departs Dinghai and arrives at Shipu later that day, at 1950.

7 April 1943:
At 1530 departs Shipu. At 1915, E of Jiushan Islands begins escort of convoy consisting of IJN emergency oiler (B-AO) SHINSHU MARU, IJN requisitioned tanker (B-AO) SHOEI MARU (2764 gt) and IJA transport TAMON MARU.

8 April 1943:
At 1140, 12 nautical miles of Qixing Island end escort and arrives at Heiniu Bay later that same day, at 1815.

9 April 1943:
At 0950 departs Heiniu Bay and arrives at Yuet Ching Bay later in the day. Fresh food supplied by lighter SENSHO MARU.

10 April 1943:
Refueled by lighter KORYU MARU.

12 April 1943:
At 0800 departs Yuet Ching Bay and calls at Dong Gua Island. Departs there and arrives at Fuyao Island later that day, at 1750.

17 April 1943:
At 0730 departs Fuyao Island and arrives at Heiniu Bay later that same day, at 1607.

18 April 1943:
At 0730 departs Heiniu Bay on ASW sweep. At 2350 in position 22-10N 121-15E, meets up with destroyer TSUGA.

20 April 1943:
Ends ASW sweep and calls at Shipu, at 1600. Departs there and arrives at Niubi Shan Strait later in the day.

21 April 1943:
Departs Niubi Shan Strait and arrives at Dinghai later that day, at 1030.

24 April 1943:
At 0901 departs Dinghai and arrives at Shipu later that same day.

25 April 1943:
Departs Shipu and arrives at Taichow Islands later in the day, at 1400.

1 May 1943:
At 1915 arrives at Shipu.

2 May 1943:
At 0646 departs Shipu on ASW sweep.

4 May 1943:
At 1910 arrives at Incog (Ingoku) Island.

5 May 1943:
At 1800 departs Incog Island and arrives at Heiniu Bay later in the day.

6 May 1943:
At 0900 departs Heiniu Bay and arrives at Taichow Islands later that day, at 1510.

12 May 1943:
At 0830 departs Taichow Islands and arrives at Pi Shan later that same day, at 1150.

14 May 1943:
At 1020 departs Pi Shan and arrives at Taichow Islands later in the day, at 1540.

16 May 1943:
At 0820 departs Taichow Islands and arrives at Shipu later that day, at 1350.

17 May 1943:
At 1000 departs Shipu and arrives at Fu Du Waterways later that same day, at 1530.

18 May 1943:
At 0700 departs Fu Du Waterways and arrives at Dinghai later in the day, at 0900.

21 May 1943:
At 1230 departs Dinghai and arrives at Shipu later that day, at 1820.

25 May 1943:
At 1030 departs Shipu.

26 May 1943:
At 0900 arrives at Taichow Islands.

27 May 1943:
At 1250 departs Taichow Islands but encounters bad weather and returns back to port later that same day, at 1720.

28 May 1943:
At 0200 departs again Taichow Islands and arrives at Pi Shan later in the day, at 1950.

29 May 1943:
At 0200 departs Pi Shan and calls at Taichow Islands, at 0730. Departs there at 0810, and arrives at Dinghai later that day, at 1900.

30 May 1943:
At 0630 departs Dinghai and arrives at Taichow Islands later that same day, at 1810.

1 June 1943:
At 0900 departs Taichow Islands and arrives at Yuet Ching Bay later in the day, at 1500.

2 June 1943:
At 0700 departs Yuet Ching Bay and calls at Pi Shan, at 0914. Departs there at 1515, and arrives at Taichow Islands at 1840. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.

3 June 1943:
At 0500 departs Taichow Islands.

4 June 1943:
At 0800 arrives at Wusong.

5 June 1943:
Departs Wusong and arrives at Kiangnan later that same day, at 1840.

9 June 1943:
Supplied with stored grain products, ammunition and quartermaster items.

15 June 1943:
Supplied with stored grain products, ammunition and quartermaster items.

16 June 1943:
Hoists the Commander’s flag and departs Kiangnan, at 1300.

17 June 1943:
At 1330 arrives at Taichow Islands. Departs there later in the day, at 1400.

18 June 1943:
At 0440 arrives at Chiaolu Shan. Departs there at 1330, and arrives at Kanmen Port at 1420. Lands a raiding party. Destroyer HASU and tug KASASHIMA join the ship. Troops come back aboard at 1700.

19 June 1943:
At 0800 departs Kanmen Port and arrives at Heiniu Bay later that day, at 1010.

20 June 1943:
At 0800 departs Heiniu Bay and arrives at Taichow Islands later that same day, at 1450. Fresh food supplied by civilian storeship BANSHU MARU No. 22.

25 June 1943:
At 0430 departs Taichow Islands and arrives S of Qi Shan at 0715. Tows destroyer KURI to Chikou Sea (near Yuet Ching Bay). Both ships arrive at Qiqu Archipelago later in the day, at 2010.

26 June 1943:
At 1545 both ships depart Qiqu Archipelago.

28 June 1943:
Auxiliary salvage tug KASASHIMA arrives and takes over the tow of KURI to Shipu from auxiliary gunboat SHINKO MARU No. 1 GO. Arrives there later that day at 1630.

29 June 1943:
At 0800 departs Shipu and arrives at Taichow Islands later that same day, at 1310. Reserve LtCdr Niki Kozo is confirmed as CO.

2 July 1943:
At 0700 departs Taichow Islands.

3 July 1943:
At 0900 arrives at Dinghai.

6 July 1943:
At 1100 departs Dinghai clearing path before arrival of convoy TA-605.

7 July 1943:
At 1110 arrives at Yuet Ching Bay.

10 July 1943:
At 0515 departs Yuet Ching Bay and arrives at Fuyao Island later that same day, at 1610.

12 July 1943:
At 0530 departs Fuyao Island and arrives at Taichow Islands later in the day, at 1720.

16 July 1943:
At 0730 departs Taichow Islands clearing path before arrival of convoy TA-705.

17 July 1943:
At 1015 arrives at Fu Du Waterways.

18 July 1943:
At 0700 departs Fu Du Waterways and arrives at Dinghai later that day, at 0900.

19 July 1943:
Commander’s flag is returned to auxiliary gunboat DAIGEN MARU No. 7. At 1700 departs Dinghai and arrives at Fu Du Waterways later that same day, at 1930.

20 July 1943:
At 0830 departs Fu Du Waterways and arrives at Taichow Islands later in the day, at 1920.

22 July 1943:
At 0830 departs Taichow Islands and arrives at Heiniu Bay later that day, at 1415.

24 July 1943:
At 0900 departs Heiniu Bay and arrives at Taichow Islands later that same day, at 1645.

25 July 1943:
At 0640 departs Taichow Islands on patrol and arrives back there later in the day, at 1700.

26 July 1943:
At 0640 departs Taichow Islands on patrol and arrives back there later that day, at 1350.

27 July 1943:
At 0810 departs Taichow Islands on patrol.

28 July 1943:
At 0930 arrives at Dinghai.

1 August 1943:
At 0900 departs Dinghai and arrives at Dong Gao Island later that same day, at 1930.

2 August 1943:
At 0800 departs Dong Gao Island and calls at Taichow Islands, at 1030. Departs there at 1400 and arrives at Zhuyu Island later in the day, at 1650.

3 August 1943:
Fires six gunshots at a village.

4 August 1943:
At 0900 departs Zhuyu Island and arrives at Taichow Islands later that day, at 1300.

5 August 1943:
At 0800 departs Taichow Islands to Baiyan Shan providing distant escort to a convoy and arrives back at Taichow Islands later that same day, at 1915.

7 August 1943:
Supplied with 39-tons of fresh water by lighter SUZUHEI MARU.

9 August 1943:
At 1200 departs Taichow Islands and arrives at Shepan Yang later in the day, at 1710.

12 August 1943:
Assigned to 6th Patrol Corps under Shanghai District telegram No. 291.

13 August 1943:
At 0800 departs Shepan Yang and arrives at Shipu later that day, at 1120.

15 August 1943:
At 1400 departs Shipu and arrives at Dong Gao Island later that same day, at 1750.

16 August 1943:
At 0640 departs Dong Gao Island and arrives at Taichow Islands later in the day, at 0930. Fresh food supplied by lighter RYOSEI MARU No. 2. Refueled and fresh water supplied by lighter KORYU MARU.

17 August 1943:
At 0700 departs Taichow Islands on gunnery, first aid, navigation and fire drill, arriving back to port later that day, at 1200.

21 August 1943:
At 1030 departs Taichow Islands and arrives at Shipu later that same day, at 1545.

22 August 1943:
At 0600 departs Shipu.

23 August 1943:
At 1520 arrives at Dinghai.

24 August 1943:
At 1030 departs Dinghai.

24 August 1943:
At 1400 arrives at Kiangnan.

4 September 1943:
Refueled and resupplied with ammunition, fresh water and fresh food.

1943:
Her Port of registry is changed to Tokyo.

5 September 1943:
At 1600 departs Kiangnan.

6 September 1943:
At 1530 arrives at Shipu.

7 September 1943:
At 0800 departs Shipu on gunnery drill and arrives at Taichow Islands later that day, at 1450.

8 September 1943:
At 0900 departs Taichow Islands clearing path before arrival of convoy Ta-705 consisting of five unidentified merchant ships escorted by destroyer HASU. The ship apparently escorts the convoy. Auxiliary gunboat DAIGEN MARU No. 7 also temporarily joins the convoy as an escort for the day.

9 September 1943:
At 0200 arrives at Heiniu Bay.

10 September 1943:
At 0700 departs Heiniu Bay and arrives at Taichow Islands later that same day, at 1250.

14 September 1943:
Fresh water supplied by lighter SUZUHEI MARU.

15 September 1943:
At 1400 departs Taichow and arrives at Heiniu Bay later in the day, at 1940.

16 September 1943:
At 0500 departs Heiniu Bay and arrives at Fuyao Island later that day, at 1140.

20 September 1943:
At 0630 departs Fuyao Island clearing path before arrival of convoy Ta-803 consisting of three unidentified merchant ships escorted by destroyer KURI and arrives at Heiniu Bay later that same day, at 1700.

21 September 1943:
At 0645 departs Heiniu Bay clearing path before arrival of convoy Ta-803 and returns back there later in the day, at 2045.

22 September 1943:
At 0900 departs Heiniu Bay and arrives at Taichow Islands later that day, at 1600.

24 September 1943:
At 0700 departs Taichow Islands.

25 September 1943:
At 0820 arrives at Dinghai. Supplied with fuel, fresh water and fresh food.

28 September 1943:
At 1000 departs Dinghai and returns back there later that same day, at 1330.

29 September 1943:
Reserve Captain Takito comes aboard. At 1420 departs Dinghai and arrives at Jiu Shan Islands, at 1850.

30 September 1943:
Reserve Captain Takito Akira assumes command. At 0630 departs Jiu Shan Islands clearing path before arrival of convoy Ta-903 and arrives at Taichow Islands later in the day, at 1840.

2 October 1943:
At 1220 departs Taichow Islands and arrives at Shipu later that day, at 1900.

3 October 1943:
LtCdr Niki disembarks. Fresh food supplied by civilian cargo ship (C-AK) TAISEI MARU and fresh water supplied by IJA transport KANAN MARU. At 0630 departs Shipu clearing path before arrival of convoy Ta-406.

4 October 1943:
At 1700 arrives back at Shipu.

5 October 1943:
At 0615 departs Shipu again clearing path before arrival of convoy Ta-406.

6 October 1943:
At 0845 arrives at Fuyao Island.

8 October 1943:
At 0700 departs Fuyao Island and arrives at Heiniu Bay later that same day, at 1540.

9 October 1943:
At 0700 departs Heiniu Bay and arrives at Taichow Islands later in the day, at 1510.

13 October 1943:
At 0800 departs Taichow Islands clearing path before arrival of convoy Ta-105 and arrives back there later that day, at 1250.

15 October 1943:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.

16 October 1943:
Fresh water supplied by IJA transport KANAN MARU.

18 October 1943:
At 0800 departs Taichow Islands and arrives at Heiniu Bay later that same day, at 1500.

19 October 1943:
At 0800 departs Heiniu Bay and arrives at Taichow Islands later in the day, at 1610.

20 October 1943:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.

21 October 1943:
At 0630 departs Taichow Islands.

22 October 1943:
At 0815 arrives at Dinghai. Loads fuel.

26 October 1943:
At 0900 departs Dinghai on ASW sweep.

27 October 1943:
At 1815 arrives at Taichow Islands.

4 November 1943:
At 0900 departs Taichow Islands and arrives at Qiqu Archipelago later that day, at 1420.

5 November 1943:
At 0700 departs Qiqu Archipelago and arrives at Fuyao Island later that same day, at 1610.

7 November 1943:
At 0900 departs Fuyao Island and arrives at Heiniu Bay later in the day, at 1940.

8 November 1943:
At 0700 departs Heiniu Bay and arrives at Fuyao Island later that day, at 2150.

11 November 1943:
At 0320 departs Fuyao Island and calls at Heiniu Bay, at 1140. Fresh food and fresh water supplied by auxiliary gunboat DAIGEN MARU No. 7. Departs there later that same day, at 1715.

12 November 1943:
At 0215 arrives at Fuyao Island.

15 November 1943:
At 0830 departs Fuyao Island and arrives at Heiniu Bay later in the day, at 1700. Fresh food supplied by civilian storeship BANSHU MARU No. 22.

16 November 1943:
At 0600 departs Heiniu Bay and arrives at Shipu later that day, at 1845.

17 November 1943:
At 0600 departs Shipu and arrives at Qiqu Archipelago later that same day, at 2320.

18 November 1943:
At 0630 departs Qiqu Archipelago and arrives at Ssu Chiao Shan (now Sijiao Island), Shengsi Archipelago later in the day, at 1050.

21 November 1943:
Refueled and fresh water supplied by lighter KORYU MARU. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21. At 0930 departs Ssu Chiao Shan (Sijiao Shan) and arrives at Wusong later that day, at 1845.

22 November 1943:
At 0700 departs Wusong and arrives at Shanghai later that same day, at 0940. Docks at Kiangnan shipyard later.

28 November 1943:
Location of Type 93 13mm MG is changed. Fitted with new gunshield and gun rack to 7.7mm MG.

4 December 1943:
Undocked. Departs Kiangnan shipyard and arrives at Kiangnan later that same day.

5 December 1943:
Departs Kiangnan on trials and returns back there later in the day.

6 December 1943:
Loads fuel and fresh food. Departs Kiangnan and arrives at Shanghai later that day.

7 December 1943:
At 1020 departs Shanghai and arrives in Qiqu Archipelago waters later that same day, at 1930.

8 December 1943:
At 0630 departs Qiqu Archipelago waters and arrives in Niubi Shan strait later in the day, at 1800.

9 December 1943:
At 0730 departs Niubi Shan strait waters and arrives at Taichow Islands later that day, at 1530.

10 December 1943:
At 1900 departs Taichow Islands on ASW patrol.

11 December 1943:
At 0300 arrives at Taichow Islands. Fresh water supplied.

13 December 1943:
Departs Taichow Islands on crew training mission and returns back to port. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21. Departs again Taichow Islands on ASW patrol later that same day, at 1630.

14 December 1943:
At 0245 arrives back at Taichow Islands.

15 December 1943:
At 0900 departs Taichow Islands and arrives at Heiniu Bay later in the day, at 1600.

16 December 1943:
At 0730 departs Heiniu Bay and arrives at Taichow Islands later that day, at 1500.

19 December 1943:
At 0730 departs Taichow Islands on ASW patrol and arrives back there later that same day, at 1139. Fresh food supplied by civilian storeship BANSHU MARU No. 22. Refueled and fresh water supplied by lighter KORYU MARU.

20 December 1943:
Refueled and fresh water supplied.

21 December 1943:
At 0330 departs Taichow Islands on ASW patrol and arrives back there later that same day, at 1340.

22 December 1943:
At 1430 departs Taichow Islands escorting convoy No. 228 consisting of NORFOLK and HOKUAN MARUs and eight unidentified ships and destroyer KURETAKE.

23 December 1943:
At 0630 ends escort at Jiu Shan Islands and arrives at Taichow Islands later in the day, at 1500.

26 December 1943:
At 1500 departs Taichow Islands on ASW patrol and arrives back there later that day, at 2000.

27 December 1943:
At 0330 departs Taichow Islands escorting convoy No. 602 and arrives at Fuyao Island later that same day, at 1930.

29 December 1943:
At 0700 departs Fuyao Island and arrives at Qiqu Archipelago later in the day, at 1700.

30 December 1943:
At 0730 departs Qiqu Archipelago and arrives at Taichow Islands later that day, at 1330.

1 January 1944:
Fresh water supplied by lighters SUZUHEI and YUNNAN MARUs.

2 January 1944:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.

3 January 1944:
At 1000 departs Taichow Islands and arrives at Heiniu Bay later that same day, at 1550.

4 January 1944:
At 0900 departs Heiniu Bay and arrives at Taichow Islands later in the day, at 1610.

5 January 1944:
At 0730 departs Taichow Islands and arrives at Fu Du Waterways later that day, at 1850.

6 January 1944:
At 0730 departs Fu Du Waterways and arrives at Dinghai later that same day, at 0930.

7 January 1944:
Loads coal.

8 January 1944:
Fresh food supplied by lighter SENSHO MARU.

9 January 1944:
At 0900 departs Dinghai on patrol in Niubi Shan Strait and returns to Dinghai later in the day, at 1730. Refueled.

10 January 1944:
At 0915 departs Dinghai with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Taichow Islands later that day, at 2200.

11 January 1944:
At 1030 departs Taichow Islands and arrives at Heiniu Bay later that same day, at 1650.

12 January 1944:
At 1500 departs Heiniu Bay and arrives at Fuyao Island later in the day, at 2300.

14 January 1944:
At 0800 departs Fuyao Island on patrol N of Qixing Island.

15 January 1944:
At 0400 arrives at Taichow Islands with auxiliary gunboat DAIGEN MARU No. 7. Fresh food supplied by civilian storeship BANSHU MARU No. 22.

16 January 1944:
At 0830 departs Taichow Islands and calls at Jiu Shan Islands, at 1625. Departs there later that day, at 2230.

17 January 1944:
At 0100, 18 nautical miles N of Yushan starts escort of convoy Ta-602 consisting of KAIKO (ex British MARY MOLLER) and TSUKUBA MARUs. Arrives at Fuyao Island later that same day, at 1830.

18 January 1944:
At 0800 departs Fuyao Island and arrives at Heiniu Bay later in the day, at 1610. Fresh water supplied by lighter SUZUHEI MARU.

19 January 1944:
At 0500 departs Heiniu Bay on escort mission but cannot meet with convoy No. 129 and arrives at Taichow Islands later that day, atr 1300.

21 January 1944:
At 0400 departs Taichow Islands on ASW patrol towards Jiu Shan Islands and arrives back at Taichow Islands later that same day, at 1640.

22 January 1944:
Fresh food supplied by lighter SENSHO MARU.

23 January 1944:
At 0800 departs Taichow Islands clearing path before arrival of convoy No. 130 and arrives at Nanji Shan at 1800. Departs there later in the day, at 2300.

24 January 1944:
At 0430 arrives at Incog Island. Departs there at 0730, and at 1130, starts with destroyer TSUGA to bolster escort of convoy No. 130 consisting of auxiliary oiler SAN DIEGO MARU, IJA oiler OGURA MARU No. 1 auxiliary hospital ship ASAHI MARU and IJA transports ATSUTA, MAYA, TERUKUNI and YASUKUNI MARUs, escorted by salvage tug KASASHIMA, auxiliary guard boat MYOJIN MARU No. 2 and auxiliary patrol boat SHINEI MARU. Soon after, off Foochow, the convoy is attacked by USAAF 14th Air Force North American B-25 “Mitchell” medium bombers. IJA transport PANAMA MARU carrying 2,229 men of 82nd and 83rd Infantry regiments, 21st Division, is bombed and sunk at 27-15N, 120-45E. One crewman, two gunners and 12 soldiers are KIA. All equipment as well as 5,034 tons of coal are lost. YASUKUNI and ATSUTA MARUs are damaged. SHINKO MARU No. 1 GO and TSUGA rescue survivors. At 1300, ends escort.

At 1747 arrives at Fuyao Island and departs there searching for IJN requisitioned ship (B-AK) RYUSEI (ex-Chinese Maritime Customs ship LIU HSING) survivors with the assistance of rescue boats No. 1 and No. 6. Returns back to port later that day.

25 January 1944:
At 0620, assigned to assist IJA transport MAYA MARU part of convoy No. 130 under Shanghai District instruction No 79. At 0630 departs Fuyao Island. At 0815, Assigned to sail towards Heiniu Bay under telegram No. 250-710. At 1030, assigned to reverse course under telegram No. 250-920. Sails to convoy No. 130’s position and assists MAYA MARU. At 1345, seven aircraft are observed at 26-35N, 120-45E. At 1555, rescues survivors of salvage tug KASASHIMA bombed and sunk earlier that same day. At 1725, rescue mission of damaged MAYA MARU is aborted under Shanghai District telegram No. 251-310.

26 January 1944:
At 1650 arrives at Taichow Islands. Fresh water supplied by lighter TOYOKUNI MARU.

29 January 1944:
At 1130 departs Taichow Islands on escort mission but cannot meet up with convoy Ta-902 consisting of ANKO and YULIN MARUs and arrives at Jiu Shan Islands later in the day, at 1850.

30 January 1944:
At 0600 departs Jiu Shan Islands escorting IJA transport NITTSU MARU (or alternate version HIGANE MARU) and arrives at Heiniu Bay later that day, at 1840. Fresh food supplied by civilian storeship BANSHU MARU No. 22.

31 January 1944:
At 0800 departs Heiniu Bay and arrives at Taichow Islands later that same day, at 1530. Fresh food supplied by civilian storeship BANSHU MARU No. 22 and fresh water supplied by lighter TOYOKUNI MARU.

2 February 1944:
At 0800 departs Taichow Islands on ASW patrol and arrives back there later in the day, at 1515.

3 February 1944:
At 0800 departs Taichow Islands and arrives at Fu Du Waterways later that day, at 1820.

4 February 1944:
At 0800 departs Fu Du Waterways and arrives at Dinghai later that same day at 0900. Replenishes fuel and fresh water.

7 February 1944:
Departs Dinghai clearing path before arrival of convoy and arrives at Taichow Islands later in the day, at 2115.

10 February 1944:
At 0900 departs Taichow Islands and arrives at Jiu Shan Islands later that day, at 1540.

11 February 1944:
At 0000 departs Jiu Shan Islands escorting convoy TA-001 consisting of BISAN MARU (ex British MING SANG) and arrives at Taichow Islands, at 0715. (Auxiliary gunboat DAIGEN MARU No. 7 joined convoy at 0500). In response to a distress call from IJA transport SATSUMA MARU under air attack off Pashan So, departs there at 1820 with destroyer TSUGA. They arrive too late to save the vessel, hit by six B-25s bombs and later torpedoed and sunk that day by LtCdr (later Rear Admiral) William S. Post Jr’s (USNA ‘30) USS GUDGEON (SS-211) with the loss of four of her crew, but rescue the survivors.

12 February 1944:
At 1600 arrives at Wusong and disembark SATSUMA MARU survivors.

13 February 1944:
At 0730 departs Wusong and arrives at Shanghai later that same day, at 0920. Replenishes fuel and fresh water.

14 February 1944:
Supplied with fresh food, canteen goods and stored grain products.

16 February 1944:
Supplied with canteen goods and quartermaster items.

17 February 1944:
At 1000 departs Shanghai and arrives at Dayang Shan later in the day, at 1830.

18 February 1944:
At 0600 departs Dayang Shan and arrives at Dinghai, at 1127. Departs there later that day, at 1500.

19 February 1944:
At 0245 arrives at Taichow Islands. Departs there at 0530, and arrives at Shipu later that same day, at 1030.

20 February 1944:
At 1000 departs Shipu on ASW patrol and arrives back at Shipu later in the day, at 1700. Fresh food supplied by civilian storeship BANSHU MARU No. 22.

21 February 1944:
At 0625 departs Shipu on ASW patrol.

22 February 1944:
At 0015 arrives back at Shipu. At 0830 departs Shipu and calls at Jiu Shan Islands, at 1052. Departs there at 1435, and arrives back at Shipu later that same day, at 1800 in company with auxiliary gunboat DAIGEN MARU No. 7.

23 February 1944:
At 0800 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Taichow Islands later in the day, at 1445.

24 February 1944:
At 0300 departs Taichow Islands with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Shipu later that day, at 1020.

26 February 1944:
At 0800 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Taichow Islands later in the day, at 1630.

27 February 1944:
At 0800 departs Taichow Islands with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Shipu later that same day, at 1315.

28 February 1944:
Fresh water supplied by lighter TOYOKUNI MARU and fresh food supplied by lighter SENSHO MARU.

1 March 1944:
At 0800 departs Shipu on ASW patrol with auxiliary patrol boat EBISU MARU and arrives back at Shipu later in the day, at 2145.

2 March 1944:
At 0700 departs Shipu with auxiliary patrol boat EBISU MARU and arrives in Niubi Shan Strait later that day, at 1150.

6 March 1944:
At 0730 departs Niubi Shan Strait and arrives at Shipu later that same day, at 1200. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.

7 March 1944:
At 0630 departs Shipu and arrives at Dinghai later in the day, at 1210.

10 March 1944:
Fresh water and fresh food supplied by lighter SENSHO MARU.

11 March 1944:
Loads coal.

12 March 1944:
At 0900 departs Dinghai, meets up with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Shipu, at 1920.

14 March 1944:
At 0800 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and auxiliary patrol boat EBISU MARU and and arrives back at Shipu later that day, at 1330.

15 March 1944:
At 1300 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and auxiliary patrol boat EBISU MARU and arrives in Niubi Shan Strait later that same day, at 1715.

17 March 1944:
At 0700 departs Niubi Shan Strait and arrives at Kinmen Island later in the day, at 1800.

18 March 1944:
At 0730 departs Kinmen Island and arrives in Niubi Shan Strait later that day, at 1520.

20 March 1944:
At 1250 departs Niubi Shan Strait and arrives at Dinghai later that same day, at 1820.

22 March 1944:
At 1000 departs Dinghai and arrives in Niubi Shan Strait later in the day, at 1340.

24 March 1944:
At 0900 departs Niubi Shan Strait with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Shipu later that day, at 1345.

25 March 1944:
At 1000 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Taichow Islands later that same day, at 1740.

26 March 1944:
At 0700 departs Taichow Islands with auxiliary gunboat DAIGEN MARU No. 7 and arrives at Shipu later in the day, at 1800.

27 March 1944:
At 1330 departs Shipu with auxiliary gunboat DAIGEN MARU No. 7 and arrives in Niubi Shan Strait later that day, at 1645.

3 April 1944:
At 0800 departs Niubi Shan Strait and arrives at Shipu later that same day, at 1210. Fresh food supplied by civilian storeship BANSHU MARU No. 22 and provides water to auxiliary gunboat HOKOKU MARU.

4 April 1944:
At 1200 departs Shipu on ASW patrol and arrives at Dongji Shan later in the day, at 1600.

5 April 1944:
At 0600 departs Dongji Shan on ASW patrol and arrives in Niubi Shan Strait later that day, at 1400.

8 April 1944:
Loads fresh water from IJA transport DAINICHI MARU.

9 April 1944:
At 1030 departs Niubi Shan Strait. Later arrives at Dinghai. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21 and fresh water supplied by IJA transport DAINICHI MARU.

10 April 1944:
Released from the 14th Gunboat Division by internal instruction No. 540. Removed from the Navy’s list under internal instruction No. 541. Registered again that same day as an auxiliary transport (Otsu) category attached to the Kure Naval Base with Kure as home port. Assigned directly to the Navy’s Department. [1]

E May 1944:
Assigned to Admiral Takasu Shiro’s (35) Southwest Fleet.

1944:
Her owners are changed to Minami Nippon Kisen K.K.

3 July 1944:
Departs Sesoko-Jima, NW of Okinawa and arrives at Seso, Kakeroma Island, S Amami-Oshima, Amami Gunto (Archipelago) later in the day.

4 August 1944:
At 0830, departs Takao, Formosa (now Kaohsiung, Taiwan) in convoy MI-13 also consisting of auxiliary oilers SHIMPO and KYOEI MARUs and OGURA MARU No. 2, IJA tankers ATAGO and TEIKON MARUs, IJA shared tankers (A/C-AO) ZUIYO and SHINCHO MARUs, civilian tanker (C-AO) TOKUWA MARU, IJA shared ore carriers (A/C-AC) HIGANE and HIYORI MARUs, civilian ore carrier (C-AC) KOKUSEI MARU, IJA transports DURBAN, KIZAN, URAL, RISSHUN and ATLAS MARUs and SHINSEI MARU No. 1, civilian cargo ship (C-AK) KUNIYAMA MARU and IJN transport T3 escorted by Destroyer ASAKAZE, kaibokan MATSUWA, KUSAGAKI, YASHIRO and CD-14, patrol boat P-38, minesweeper W-18, and auxiliary patrol boats EIFU, FUYO, KASUGA and NUNOBIKI MARUs.

7 August 1944:
Off Capones Island, Luzon. At 2205, LtCdr (later Captain) Enrique D. Haskin's (USNA ’33) USS GUITARRO (SS-363) torpedoes and sinks kaibokan KUSAGAKI at 14-50N, 119-57E. USS GUITARRO survives depth-charging by ASAKAZE and CD-14. 97 of KUSAGAKI's crew are KIA, 30 others drift throughout the night. In the morning, the survivors, including CO LtCdr Ozaki Takashi (60), are rescued by ASAKAZE and taken to Manila.

8 August 1944:
At 0900, the convoy arrives at Manila. SHINKO MARU No. 1 GO is detached as are DURBAN, KIZAN, RISSHUN, KUNIYAMA, SHINKO and ATLAS MARUs.

11 August 1944:
Departs Manila.

12 August 1944:
Arrives at Paluan Bay, Mindoro.

14 August 1944:
Departs Paluan Bay.

18 August 1944:
Arrives at Miri, Borneo.

9 January 1945:
Bantam Bay, E of Bawean Island, Borneo. Ltz 1 (LtCdr) Jacob F. Drijfhout van Hooff's Dutch submarine HMNS O-19, operating under ComSubSoWesPac, is alerted by an "Ultra" signal that a small convoy is steaming eastwards S of Borneo. Just before sunset, a mast appears on the horizon near Tandjung Puting. Van Hooff executes an "end around" to get ahead of the convoy consisting of SHINKO MARU No. 1 GO escorted by subchaser CH-5.

Van Hooff surfaces at sunset and sights a small freighter and an escort. He fires three torpedoes and gets a hit that sinks SHINKO MARU No. 1 GO at 03-41S-111-54E about 11 nautical miles SE of Tandjung Puting with unknown casualties.

1 February 1945:
Removed from the Navy’s list under instruction No. 101.

________________________________________


Authors notes :
[1] There were two categories of Zatsuyosen. (Ko) category with an IJN Captain as supervisor aboard and (Otsu) category without.

Thanks go to Gengoro S. Toda of Japan. Thanks go to the late John Whitman of Virginia, USA for info on CNO intercepts of Japanese messages.

Gilbert Casse and Peter Cundall.


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