ZATSUYOSEN!
(SHOSEI MARU in wartime)
IJN SHOSEI MARU:
Tabular Record of Movement
© 2015-2018 Gilbert Casse and Peter Cundall
Revision 1
E 1928:
Osaka. Laid down by Amagasaki Zosensho K.K. shipyard for Amagasaki Kisenbu G.K. as a 998-tons cargo ship.
25 April 1929:
Launched and named SHOSEI MARU. [1]
E 1929:
Completed and registered at Osaka. Her Net Registered tonnage (NRT) is 607-tons. [2]
1931:
Her NRT is changed to 608-tons. [2]
29 October 1936:
Departs Osaka to attend the yearly special naval review and returns back to port later that day.
6 October 1938:
Requisitioned by the IJN.
22 October 1938:
Registered in the IJN as an auxiliary gunboat attached to the Yokosuka Naval District under Navy’s instruction No. 879. Assigned to the 3rd Gunboat Division under Navy’s instruction No. 880. Reserve Lt(jg) Togawa Tsutomu assumes command.
12 November 1938:
Departs Sasebo.
E 13 November 1938:
Arrives at Tokyo.
4 April 1939:
Comes alongside auxiliary gunboat NANKAI MARU No. 1 on starboard.
6 April 1939:
Released alongside from NANKAI MARU No. 1.
April 1939:
Departs Tokyo and arrives at Shanghai, China. Rated as gunboat No. 33.
1 June 1939:
Departs Shanghai.
22 June 1939:
Arrives at Kiangnan near Shanghai.
23 June 1939:
Enters Kiangnan shipyard drydock.
28 June 1939:
Undocked. Departs Kiangnan.
15 November 1939:
Assigned to the 13th Gunboat Division under Navy’s instruction No. 850. Reserve Lt Azuma Tsuneji assumes command.
15 September 1940:
Reserve Lt Nikki Isaburo assumes command.
4 November 1940:
Undocked.
15 November 1940:
Assigned to the 13th Gunboat Division under Navy’s instruction No. 837.
22 August 1941:
Reserve Lt Shimada Suetsugu assumes command.
15 October 1941:
Assigned to Vice Admiral Makita Kakusaburo’s (38) Shanghai Special Base Force in Captain Yano Mitoshi’s (42) 13th Gunboat Division also consisting of auxiliary gunboats HYAKUFUKU MARU and UNKAI MARU No. 10 under Navy’s instruction No. 1250.
5 November 1941:
Assigned to South Branch Corps, Amoy (now Xiamen) District, China, South patrol force.
8 November 1941:
Arrives at Amoy.
21 November 1941:
Rated as gunboat No. 133.
1 December 1941:
Assigned to Amoy District Forces under South Branch Corps secret instruction No. 18. At 1600 departs Amoy.
2 December 1941:
At 1940 arrives at Swatow (now Shantou), southern China. Surveys Swatow coast area.
3 December 1941:
At 0830 departs Swatow and arrives at Jieshi Bay later in the day at 1920.
4 December 1941:
At 0830 departs Jieshi Bay on patrol and arrives back there later that day at 2100.
6 December 1941:
At 1900 departs again Jieshi Bay to prepare to seize soon to be enemy ships.
7 December 1941:
From 0230 S of Jieshi Bay, monitors the following British ships: salvage tug EDITH MOLLER, small steamer LIEN SHUI (91GRT) and lighter TAIKOO No. 24 (202 GRT).
8 December 1941:
Seizes British ships EDITH MOLLER, LIEN SHUI and TAIKOO No. 24. Comes alongside and loads fresh water from lighter KYOSEI MARU. Departs Jieshi Bay. At 1200, observes ships in movement. At 1256, drops anchor E of Dong Fan Shan harbour. At 1305, fires warning shots. At 1320, raiding party starts operation but is fired at from the coast. Fires 12 shots from 12cm gun and 950 rifle bullets. At 1642 arrives at Zhelang Point. At 1800, requisitions Zhelang lighthouse personal and other personal nearby.
9 December 1941:
At 2020 departs Zhelang Point and arrives at Jieshi Bay later that same day at 2220.
10 December 1941:
At 0815, comes alongside auxiliary storeship AZUCHI MARU and loads fresh food. At 1440, boarding party captures motorboat SHIN HUA and rummages Norwegian cargo ship DUKAT (later IJN requisitioned transport AMOY MARU). At 1830, achieves capture of British salvage tug READY MOLLER.
11 December 1941:
At 0815 departs Jieshi Bay on patrol and returns back there later in the day at 1305.
12 December 1941:
Departs Jieshi Bay on patrol and returns back there later that day.
14 December 1941:
At 0800 departs Jieshi Bay escorting seven captured ships.
15 December 1941:
Due to high waves, British tender EDITH MOLLER (later AMOY MARU No. 4) straggles behind the convoy and is escorted by SHOSEI MARU.
16 December 1941:
At 0505 both ships arrive at Amoy. At 0645 SHOSEI MARU departs there to meet up with the other captured ships and arrives back at Amoy later that same day at 1000. Fresh food and fresh water supplied.
17 December 1941:
Replenishes coal and boiler water.
18 December 1941:
At 1300 departs Amoy.
19 December 1941:
At 1550 arrives at Jieshi Bay.
22 December 1941:
At 0900 departs Jieshi Bay.
23 December 1941:
At 1710 arrives at Nan’ao Island.
24 December 1941:
At 1300, disembarks a raiding party. At 1620, troops come back aboard. At 1845, arrives on patrol zone and listens to lighter NABURI MARU’s report.
25 December 1941:
At 0945, fresh food supplied by civilian (C-AK) cargo ship SHINKO MARU. At 1315, disembarks a raiding party. At 1645, troops come back aboard.
26 December 1941:
At 0755 departs Nan’ao Island and arrives at Shenquan port later that same day at 1440.
27 December 1941:
At 0950 departs Shenquan, at 1026 calls at Zhelang Point and later at 1115 arrives at Weitou Bay. Departs there and arrives at Hunghai Bay later in the day at 1950.
28 December 1941:
At 1315 departs Hunghai Bay and gives chase to a suspect boat. Arrives back at Hunghai Bay later that day to attend damaged storeship NOJIMA. [3]
29 December 1941:
NOJIMA transfers rice and barley foodstuffs to SHOSEI MARU. Auxiliary gunboat CHOHAKUSAN MARU arrives to render assistance.
2 January 1942:
At 0800 lighter KYOSEI MARU comes alongside and transfers fresh water to SHOSEI MARU.
3 January 1942:
Lighter HEIYU MARU urgently transfers 300 gravel bags and 500 cement bags to NOJIMA. Auxiliary gunboat CHOHAKUSAN MARU departs for Mako.
4 January 1942:
Assigned to Shanghai District 6th Patrol Corps under Shanghai District instruction No. 165. Lighter HEIYU MARU transfers timber to NOJIMA. Fresh water supplied by a lighter.
7 January 1942:
Transfers hull plating to NOJIMA.
8 January 1942:
At 1540 fresh water supplied by lighter KYOSEI MARU.
10 January 1942:
At 0800 fresh food supplied by auxiliary storeship AZUCHI MARU.
12 January 1942:
At 1515 fresh water supplied by lighter KYOSEI MARU.
15 January 1942:
At 1030 fresh food supplied by auxiliary storeship AZUCHI MARU.
16 January 1942:
At Amoy takes on fuel from collier-tanker KOTOKU MARU.
17 January 1942:
Released from South Branch Corps, Amoy District, South patrol force under instruction No. 99.
18 January 1942:
Assigned to Shanghai District Base Unit. Transfers more salvage material to NOJIMA. Coal supplied by lighter KYOSEI MARU.
19 January 1942:
At 1200 departs Hunghai Bay on training mission and returns to area. Departs there sailing alone later in the day.
21 January 1942:
At 0630 arrives at Amoy.
22 January 1942:
Replenishes coal and boiler water.
23 January 1942:
Fresh food supplied by auxiliary storeship AZUCHI MARU.
24 January 1942:
At 1215 departs Amoy.
27 January 1942:
At 2245 arrives at Bell Buoy, Shanghai.
28 January 1942:
At 0700 departs Bell Buoy and arrives at Shanghai later that day at 1530 tethering to Buoy No. 3. Assigned to Shanghai District 6th Patrol Corps.
1 February 1942:
At 0900 departs Shanghai and arrives at Kiangnan (now Jiangnan) later that day at 1000.
2 February 1942:
At 1630 enters drydock for maintenance and repairs.
13 February 1942:
At 1020 undocked. Tethers to pier.
24 February 1942:
Hull, weapons and other repairs are completed.
25 February 1942:
Loads gunpowder, shells, depth-charges (DCs) and stored grain products.
26 February 1942:
Replenishes coal.
27 February 1942:
Undergoes full hull and superstructure coating.
28 February 1942:
At 1600 departs Kiangnan on trials and at 1800 arrives at Shanghai. Fresh food supplied.
1 March 1942:
Undergoes machinery repairs.
2 March 1942:
At 1100 departs Shanghai and arrives at Yawosha later that same day at 1525.
3 March 1942:
At 0730 departs Yawosha on patrol mission in C area and at 1545 arrives at Ssu Chiao Shan (now Sijiao Island), Shengsi Archipelago.
4 March 1942:
At 1400 departs Ssu Chiao Shan on patrol mission in C area and arrives at Chen Quian Shan later that day at 1625.
6 March 1942:
At 1000 departs Chen Quian Shan on patrol mission in C area and returns back there later that same day at 1115.
7 March 1942:
At 0800 departs Chen Quian Shan and calls at Tongdao. Departs there on patrol mission in SKA route and arrives at Ssu Chiao Shan later in the day at 1448. Fresh food supplied by auxiliary storeship KOSOKU MARU No. 3 at 1711.
8 March 1942:
At 1330 departs Ssu Chiao Shan on patrol mission in B area and arrives at Jigujiao later that day at 1700.
10 March 1942:
At 1400 departs Jigujiao on sweeping mission in SKB route and returns back there later that same day at 1845.
13 March 1942:
At 1400 departs Jigujiao on patrol mission in AB area and arrives at Tongsha later in the day at 1730.
14 March 1942:
At 0800 departs Tongsha on patrol mission in A area and arrives at Shanghai later that day at 1345. Coal replenished at the Mitsui pier.
15 March 1942:
Fresh food supplied. At 1500 departs Shanghai on patrol mission in A area and arrives at Bell Buoy later in the day at 2000.
17 March 1942:
At 1730 departs Bell Buoy on training and patrol missions and returns back there later that day at 2005.
18 March 1942:
Departs again Bell Buoy. At 2200, starts escorting a convoy consisting of IJA transports CHIKUZEN, KOHOKU, RYUKO and PEKING MARUs.
19 March 1942:
At 0500, ends escort and begins patrol mission. Calls at Ssu Chiao Shan at 1210 to be supplied with fresh food supplied by auxiliary storeship KOSOKU MARU No. 3 at 1610. At 1645 departs there and resumes patrol mission in B area.
21 March 1942:
At 1410 arrives back at Ssu Chiao Shan.
24 March 1942:
At 1200 departs Ssu Chiao Shan on a convoy escort mission and calls at Bell Buoy at 1600 departing at 1730. At 0700 [?], 18 nautical miles S of Dongting Island, escort is taken over by auxiliary gunboat NISSHO MARU No. 12. Undergoes DC drill and drops one Type 95 DC.
25 March 1942:
At 1900 arrives at Ssu Chiao Shan.
26 March 1942:
At 1200 departs Ssu Chiao Shan on patrol mission in AB area and arrives at Wusong later in the day at 2125.
27 March 1942:
Undergoes full coating to hull, superstructure and accommodations.
28 March 1942:
At 0730 departs Wusong and arrives at Shanghai later that day at 0930. Tethers to Buoy No. 3. Undergoes hull, weapons and machinery maintenance and repairs.
29 March 1942:
Fresh food supplied.
31 March 1942:
Tethers to the Navy pier.
1 April 1942:
At 1300 departs Shanghai.
2 April 1942:
At 0020 arrives at Jigujiao. Departs there at 1400 on patrol mission in C area and arrives at Ssu Chiao Shan later that day at 1800.
6 April 1942:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.
7 April 1942:
At 0800 departs Ssu Chiao Shan on patrol mission in C area.
8 April 1942:
At 1330 arrives at Jang Tu Shan.
10 April 1942:
Departs Jang Tu Shan on patrol mission in C area and arrives at Ssu Chiao Shan later that same day.
11 April 1942:
At 1000 departs Ssu Chiao Shan and calls at Chen Quian Shan. Departs there and arrives at Tongsha later in the day.
12 April 1942:
At 0800 departs Tongsha on patrol mission in A area and arrives at Wusong later that day at 1130.
13 April 1942:
At 0900 departs Wusong and arrives at Shanghai later that same day at 1055. Tethers to the Navy’s pier. Replenishes coal and boiler water.
14 April 1942:
At 1500 departs Shanghai on patrol mission in A area and arrives at Jiuduan later in the day at 1924.
15 April 1942:
At 1400 departs Jiuduan on patrol mission in C area and arrives at Lu Hu Shan later that day at 2115.
18 April 1942:
At 0950 departs Lu Hu Shan on patrol mission in C area and arrives at Ssu Chiao Shan later that same day at 1120. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.
20 April 1942:
At 1500 departs Ssu Chiao Shan on patrol mission in C area.
21 April 1942:
At 1410 arrives at Putuoshan.
23 April 1942:
At 1200 departs Putuoshan on patrol mission in C area and arrives at Ssu Chiao Shan later in the day at 1800.
24 April 1942:
At 1130 departs Ssu Chiao Shan northern coast and arrives at Ssu Chiao Shan southern coast later that day at 1230. Receives documents from auxiliary storeship KOSOKU MARU No. 3.
26 April 1942:
At 0600 departs Ssu Chiao Shan on patrol mission in A and C areas and arrives at Wusong later that same day at 1500.
27 April 1942:
At 0800 departs Wusong and arrives at Shanghai later in the day. Tethers to buoy No. 4.
28 April 1942:
Loads stored grain products.
30 April 1942:
Tethers to the Navy pier.
1 May 1942:
Replenishes coal and boiler water. At 1512 departs Shanghai on patrol mission in A area and arrives at Jiuduan later in the day at 1905.
7 May 1942:
At 1400 departs Jiuduan and arrives at Wusong later that day at 1730.
9 May 1942:
At 1145 departs Wusong and arrives at Ssu Chiao Shan later that same day at 2025.
10 May 1942:
At 1045 departs Ssu Chiao Shan on patrol off Chen Quian Shan and arrives back at Ssu Chiao Shan later in the day at 1620.
12 May 1942:
At 0800 departs Ssu Chiao Shan on gunnery drill S of Chen Quian Shan and arrives back at Ssu Chiao Shan later that day at 1520. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.
15 May 1942:
At 0900 departs Ssu Chiao Shan on patrol E of Yushan and arrives at Jiuduan later that same day at 2200.
16 May 1942:
At 1000 departs Jiuduan and arrives at Wusong later in the day at 1245.
17 May 1942:
At 0525 departs Wusong and arrives at Shanghai later that day at 0730. Supplied and coal replenished.
18 ~ 20 May 1942:
Undergoes hull, weapons and machinery maintenance and repairs. Fresh food and canteen goods supplied.
21 May 1942:
At 0800 departs Shanghai and arrives at Bell Buoy later that same day at 1417.
22 May 1942:
At 0800 departs Bell Buoy and arrives at Ssu Chiao Shan later in the day at 1200.
23 May 1942:
At 1100 shifts to rolling anchor.
24 May 1942:
Fresh food supplied by auxiliary storeship BANSHU MARU No. 21.
27 May 1942:
At 0700 departs Ssu Chiao Shan with small gunboat KYODO No. 215 and arrives at Putuoshan later that day at 1815.
28 May 1942:
At 1455 departs Putuoshan on ASW patrol.
29 May 1942:
At 1205 arrives at Hengsha.
30 May 1942:
At 1355 departs Hengsha and arrives at Jiuduan later that same day at 1505. Fresh food supplied by lighter SENSHO MARU.
31 May 1942:
At 0600 departs Jiuduan and arrives at Ssu Chiao Shan later in the day at 1245.
2 June 1942:
At 0900 departs Ssu Chiao Shan and arrives at Wusong later that day at 1615.
3 June 1942:
At 0700 departs Wusong and arrives at Shanghai later that same day at 0900. Tethers to Buoy No. 7.
4 June 1942:
Replenishes coal. Supplied with fresh food and canteen goods.
5 June 1942:
At 1000 departs Shanghai and arrives at Jiuduan later in the day at 1340.
8 June 1942:
At 0800 departs Jiuduan and arrives at Wusong later that day at 1115.
9 June 1942:
At 0900 departs Wusong and arrives at Ssu Chiao Shan later that same day at 1700.
15 June 1942:
At 0900 departs Ssu Chiao Shan and arrives at Wusong later in the day at 1930.
18 June 1942:
At 0700 departs Wusong and arrives at Shanghai at 0905. Tethers to the Navy pier and replenishes coal. At 1500, transfers to Buoy No. 6.
19 June 1942:
Fresh food supplied.
20 June 1942:
Undergoes maintenance to hull, weapons and machinery.
21 June 1942:
Fresh food supplied.
22 June 1942:
At 1000 departs Shanghai and arrives at Bell Buoy later that day at 1645.
23 June 1942:
At 1000 departs Bell Buoy and arrives at Ssu Chiao Shan later that same day at 1325.
25 June 1942:
At 1400 departs Ssu Chiao Shan and arrives at Dongting Island later in the day at 2010.
26 June 1942:
At 1100 departs Dongting Island and meets up with BANDOENG MARU and TATSUTAMA MARU towing TOZAN MARU and relieves auxiliary gunboat TOSHO MARU from the convoy’s escort. Escort ends off Huaniaoshan.
27 June 1942:
At 0050 arrives at Chen Quian Shan. Departs there at 1500, and arrives at Ssu Chiao Shan later that day at 1825.
1 July 1942:
Assigned to assist until 25th July, Raiding Force under Shanghai District instruction No. 18. Fresh food supplied by auxiliary storeship BANSHU MARU No. 21. At 1330 departs Ssu Chiao Shan on patrol and returns back to port later that same day at 1720.
2 July 1942:
At 0830 departs Ssu Chiao Shan and arrives at Shanghai later in the day at 1725.
3 July 1942:
Replenishes coal at the Asahi pier.
5 July 1942:
Assigned to assist Raiding Force under secret instruction No. 5. Loads stored grain products and ammunition and embarks a raiding party.
6 July 1942:
Fresh food supplied and completes boarding of the raiding party. Departs Shanghai later that day at 1100.
7 July 1942:
At 0740 arrives at Taohua Shan.
8 July 1942:
At 1310 departs Taohua Shan. At 1810, starts escort of a convoy consisting of unidentified IJA transports.
9 July 1942:
At 1630, ends escort off Qiqu Archipelago. At 1840, arrives at Yuet Ching Bay. At 2145, disembarks the raiding party and fires four warning shots with her 12cm gun. At 2156, stops the shelling.
10 July 1942:
At 1400 departs Yuet Ching Bay and arrives at Fei Yun Jiang later that same day at 1800.
12 July 1942:
At 0600 departs Fei Yun Jiang and arrives at Heiniu Bay later in the day at 1030.
14 July 1942:
At 0800 departs Heiniu Bay and arrives at Yuet Ching Bay at 1145.
16 July 1942:
Fresh water supplied by IJN tanker (B-AO) TAKATORI MARU No. 1.
17 July 1942:
At 0330, the raiding party disembarks. At 0630, the landing is successful. At 1915, fresh food supplied by an unidentified BANSHU MARU No. ?
24 July 1942:
Fresh water supplied by auxiliary collier/oiler KORYU MARU.
25 July 1942:
At 1240, the raiding party comes back aboard. Released from the Raiding Force Operation under Shanghai District secret instruction No. 246. At 1540, departs Yuet Ching Bay.
26 July 1942:
At 1600 arrives at Ssu Chiao Shan. Departs there later that day at 1935.
27 July 1942:
At 0155 arrives at Wusong. Departs there at 0740 and arrives at Shanghai later that same day at 1030. Tethers to the ammunition pier. Disembarks the raiding party and lands their equipment and weapons.
28 July 1942:
At 1000 departs Shanghai and arrives at Jiangnan (Kiangnan) at 1110. Enters drydock for hull, weapons and machinery maintenance and repairs.
4 August 1942:
Fresh food supplied.
8 August 1942:
Stored grain products supplied.
11 August 1942:
Undocked. At 1355 departs Kiangnan on trials and arrives at Shanghai later in the day at 1500.
12 August 1942:
Fresh food supplied. At 1450 departs Shanghai and arrives at Jiuduan later that day at 1930.
13 August 1942:
At 1420 departs Jiuduan towards SK Point and calls at Tongdao. Departs there later that same day.
14 August 1942:
At 1426 arrives at Ssu Chiao Shan.
17 August 1942:
Fresh food supplied.
18 August 1942:
At 0900 departs Ssu Chiao Shan and arrives at Sheshan later in the day at 1520.
19 August 1942:
At 0630 departs Sheshan.
20 August 1942:
At 0035 arrives at Ssu Chiao Shan.
22 August 1942:
At 1800 departs Ssu Chiao Shan on suspect ships’ inspection mission and returns back to port later that day at 2215.
23 August 1942:
Fresh food supplied.
26 August 1942:
At 0800 departs Ssu Chiao Shan and arrives at Wusong later that same day at 1500.
27 August 1942:
At 0830 departs Wusong and arrives at Shanghai at 1040. Replenishes coal and boiler water.
28 August 1942:
At 1100 departs Shanghai and arrives at Chong Bao Sha later in the day at 1310.
29 August 1942:
At 0600 departs Chong Bao Sha towards S of the estuary and arrives at Sheshan later that day at 1925.
31 August 1942:
At 1400 departs Sheshan and arrives S of the estuary later that same day at 1700.
1 September 1942:
At 1100 seizes four salt smuggling junks. Departs S of the estuary at 1145 towing the four captured junks and arrives off San Chong later in the day at 1820.
2 September 1942:
At 0000 departs San Chong waters and calls at Wusong at 0735. Delivers the junks to the port authorities and departs Wusong at 0845. Arrives at Tongsha later that day at 1215.
3 September 1942:
At 0400 departs Tongsha towing two seized junks and arrives at Wusong later that same day at 0930. Delivers the junks to the port authorities.
4 September 1942:
At 0800 departs Wusong and arrives at Jinshan later in the day at 1830.
5 September 1942:
At 1100 departs Jinshan and arrives S of the estuary later that day at 1440.
7 September 1942:
At 1000 departs S of the estuary and arrives at Ssu Chiao Shan later that same day at 1730.
8 September 1942:
At 0800 departs Ssu Chiao Shan and arrives at Tongsha later in the day at 1640.
9 September 1942:
At 0700 departs Tongsha and arrives at Ssu Chiao Shan later that day at 1640. At 1700 auxiliary gunboat HOKOKU MARU joins the ship.
10 September 1942:
At 0800 departs Ssu Chiao Shan on operation and gunnery drills with HOKOKU MARU and returns back to port later that same day at 1230.
13 September 1942:
At 0800 departs Ssu Chiao Shan and arrives at Shanghai later in the day at 1610. Tethers to the Navy pier.
14 ~ 17 September 1942:
Undergoes hull, weapons and machinery maintenance and repairs.
18 September 1942:
At 1000 departs Shanghai and arrives at Hengsha later that day at 1325.
19 September 1942:
At 0900, lands a raiding party. Troops come back aboard at 1400.
20 September 1942:
At 1100 departs Hengsha and arrives at Ssu Chiao Shan later that same day at 1745.
30 September 1942:
At 1000 departs Ssu Chiao Shan and arrives at Wusong later in the day at 1820.
1 October 1942:
At 0700 dDeparts Wusong and arrives at Shanghai later that day at 0930. Tethers to the Navy pier and replenishes coal and boiler water.
2 October 1942:
At 0900 departs Shanghai on ASW sweeping mission in the area where IJA transport LISBON MARU was torpedoed the day before. At 2300 SHOSEI MARU arrives. During the day Naval tug KASASHIMA and transport TONE MARU arrive at the sinking scene. [3]
3 October 1942:
At 1130 arrives at Tung Fusham Island. At 1330, lands a raiding party. 269 POWs are recaptured on the Island. At 2000, troops come back aboard.
4 October 1942:
At 0830, lands the raiding party. At 1200, troops come back aboard. At 1400, all POWs are transferred to auxiliary gunboat HYAKUFUKU MARU. At 1600, departs Tung Fusham Island and at 2000, arrives at Jiang Tu harbour.
5 October 1942:
At 0900, lands a raiding party. At 1230, troops come back aboard. Fresh food supplied by auxiliary storeship KOSOKU MARU No. 3.
7 October 1942:
At 1100 departs Jiang Tu. Calls at Dong Ting Island. Departs there and calls at Tongdao. Departs there later that same day.
8 October 1942:
At 1030 arrives at Ssu Chiao Shan.
13 October 1942:
At 0930 departs Ssu Chiao Shan and arrives at Wusong later in the day at 1720.
14 October 1942:
At 0700 departs Wusong and arrives at Shanghai later that day at 0920. Tethers to the Navy pier and replenishes coal. Transfers later that day to Buoy No. 3 and replenishes coal again.
15 October 1942:
Stored grain products and fresh food supplied.
18 October 1942:
Fresh food supplied. At 1150 departs Shanghai and arrives at Jiuduan later that same day at 1600.
19 October 1942:
At 0957 departs Jiuduan on an ASW sweep.
20 October 1942:
At 2035 arrives at Ssu Chiao Shan.
22 October 1942:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.
27 October 1942:
At 1330 departs Ssu Chiao Shan on ASW sweep.
28 October 1942:
At 0125 arrives back at Ssu Chiao Shan.
1 November 1942:
At 0000 departs Departs Ssu Chiao Shan again and arrives at Wusong later in the day at 1045.
2 November 1942:
At 0700 departs Wusong and arrives at Shanghai later that day at 0855. Tethers to the Navy pier and replenishes coal, boiler water and fresh food.
3 November 1942:
At 1140 departs Shanghai and arrives at Jiuduan later that day at 1620.
4 November 1942:
At 1200 departs Jiuduan and arrives at Ssu Chiao Shan later that same day at 1750.
5 November 1942:
At 1000 departs Ssu Chiao Shan and arrives at Chen Quian Shan later in the day at 1340.
9 November 1942:
At 0700 departs Chen Quian Shan and calls at Tongdao. Departs there and calls at Huaniaoshan. Departs there and arrives at Ssu Chiao Shan later that day at 1728.
10 November 1942:
At 0800 departs Ssu Chiao Shan and arrives at Luojia Shan later that same dayat 1710.
11 November 1942:
At 0800 departs Luojia Shan.
12 November 1942:
At 1200 arrives off Chang Kiang, Yangtze River where IJN requisitioned cargo ship (B-AK) KOBE MARU collided with civilian cargo ship (C-AK) TENZAN MARU the day before. Both ships sank but no casualties were sustained. SHOSEI MARU embarks KOBE MARU’s lifeboats No. 3, No. 7 and No. 8.
13 November 1942:
At 0300 arrives at Ssu Chiao Shan. Departs there at 1600 and arrives at Huanglong Island later that day at 1740.
14 November 1942:
At 0800 departs Huanglong Island and arrives at Ssu Chiao Shan later that same day at 0846.
17 November 1942:
At 1000 departs Ssu Chiao Shan and arrives at Wusong later that same day at 2130.
18 November 1942:
At 0740 departs Wusong and arrives at Shanghai later in the day at 0940. Tethers at buoy No. 5. Delivers the three lifeboats to port authorities.
18 ~ 20 November 1942:
Undergoes hull, weapons and storage maintenance.
20 November 1942:
Canteen goods supplied.
21 November 1942:
Transfers to the coal pier.
22 November 1942:
At 1600 departs Shanghai and arrives at Jiuduan later in the day at 2000.
23 November 1942:
At 0700 departs Jiuduan and arrives at Ssu Chiao Shan later that day ar 1430.
28 November 1942:
Fresh food supplied by civilian storeship BANSHU MARU No. 22.
29 November 1942:
At 1200 departs Ssu Chiao Shan on night patrol in B area.
30 November 1942:
At 1030 arrives back at Ssu Chiao Shan.
2 December 1942:
At 1200 departs Ssu Chiao Shan again and arrives at Wusong later that same day at 2100.
3 December 1942:
At 1000 departs Wusong and arrives at Shanghai later in the day at 1140. Replenishes boiler water and coal.
4 December 1942:
At 1400 departs Shanghai and arrives at Jiuduan later that day at 1815.
5 December 1942:
At 1300 departs Jiuduan and arrives at Ssu Chiao Shan later that same day at 1805.
13 December 1942:
At 1200 departs Ssu Chiao Shan and arrives S of the estuary later in the day at 1540.
14 December 1942:
At 1000 departs S of the estuary and arrives at Wusong later that day at 1705.
15 December 1942:
At 0810 departs Wusong and arrives at Kiangnan later that same day at 1035.
17 December 1942:
Enters drydock for maintenance and repairs.
31 December 1942:
Undocked.
13 January 1943:
Supplied with stored grain products.
16 ~ 17 January 1943:
Undergoes full inside and outside coating.
18 January 1943:
Supplied with shells, gunpowder, explosives and DCs.
21 January 1943:
Hull, weapons and machinery repairs are completed.
22 January 1943:
Transfers from pier to buoy No. 2.
23 January 1943:
At 1325 departs Kiangnan on trials and arrives at Shanghai later in the day at 1445. Tethers to the Navy pier.
24 January 1943:
Replenishes coal and loads fresh food. At 1500 departs Shanghai and arrives at Wusong later that day at 1745.
25 January 1943:
At 0800 departs Wusong and arrives at Ssu Chiao Shan later that same day at 1830.
30 January 1943:
At 1930, engages in a joint night raid drill with small auxiliary minesweeper KOHO (ex-British salvage tug DIANA MOLLER) MARU No. 2 GO.
31 January 1943:
At 0730 departs Ssu Chiao Shan on patrol and arrives back there later in the day at 1830.
6 February 1943:
At 0900 departs Ssu Chiao Shan again.
7 February 1943:
At 0100 arrives at Wusong. At 0700 departs there and arrives at Shanghai later that day at 0930. Tethers to the Navy pier and replenishes coal.
8 February 1943:
Fresh food supplied. At 1430 departs Shanghai and arrives at Bell Buoy later that same day at 2200.
9 February 1943:
At 1000 departs Bell Buoy and arrives at Dayang Shan later in the day at 1820.
12 February 1943:
At 0900 departs Dayang Shan and arrives at Luojia Shan later that day at 1520.
14 February 1943:
At 0900 departs Luojia Shan and arrives at Ssu Chiao Shan later that day at 1630.
20 February 1943:
At 0245 departs Ssu Chiao Shan and arrives at Hengsha later that same day at 1145. At 1230, lands a raiding party. Reports six casualties. At 2330, troops come back aboard.
21 February 1943:
At 0900 departs Hengsha and arrives at Shanghai at 1400. Embarks seven additional soldiers. At 1915 departs Shanghai and arrives at Hengsha later in the day at 2225.
22 February 1943:
At 0600 departs Hengsha and arrives at Ssu Chiao Shan later that day at 1340.
23 February 1943:
At 0900 departs Ssu Chiao Shan and arrives at Wusong later that same day at 1400.
24 February 1943:
At 0730 departs Wusong and arrives at Shanghai at 1000. Tethers to the Navy pier and replenishes coal. Transfers from the Navy pier to buoy No. 5 later in the day.
25 February 1943:
Supplied with stored grain products.
27 February 1943:
Fresh food supplied.
28 February 1943:
At 1200 departs Shanghai and arrives at Hengsha later that day at 1520.
1 March 1943:
At 0900 departs Hengsha and arrives at Ssu Chiao Shan later that same day at 1540.
4 March 1943:
At 1200 departs Ssu Chiao Shan.
5 March 1943:
At 2125 arrives at Dongting Island.
6 March 1943:
At 0700 departs Dongting Island and arrives at Ssu Chiao Shan later in the day at 1445.
9 March 1943:
At 1700 departs Ssu Chiao Shan on ASW and minesweeping duties.
10 March 1943:
At 1830 arrives at Ssu Chiao Shan.
11 March 1943:
At 1000 departs Ssu Chiao Shan and arrives at Wusong later that day at 1639.
12 March 1943:
At 0700 departs Wusong and arrives at Shanghai later that same day at 1015. Tethers to the Navy pier and replenishes coal.
13 March 1943:
At 1300 Departs Shanghai and arrives at Bai Long later in the day at 1532. Lands troops. 10 junks are inspected.
14 March 1943:
At 0800 departs Bai Long and arrives at Ssu Chiao Shan later that day at 1500.
15 March 1943:
At 0938, departs Ssu Chiao Shan to escort TACOMA MARU. At 1001, runs aground on a reef S of anchorage. At 1101, places a temporary patch on the damaged bow hull. At 1139, tries to disengage from reef without success. At 1450, finally disengages from reef and departs Ssu Chiao Shan waters.
16 March 1943:
At 0157 arrives at Wusong. At 0948 departs there and arrives at Jiangnan (Kiangnan) later that same day at 1210. Tethers to buoy No. 3.
17 March 1943:
Enters dock No. 2 drydock for extensive hull repairs.
27 March 1943:
Undocked.
29 March 1943:
Shells, bullets and gunpowder supplied. Fitted with additional DCs and related equipment.
30 March 1943:
Supplied with stored grain products.
31 March 1943:
At 0833 transfers to rolling anchor. At 1105 departs Jiangnan (Kiangnan) and arrives at Shanghai at 1522. Departs there and arrives at Wusong later in the day at 1712.
4 April 1943:
At 1355 departs Wusong and arrives at Bell Buoy later that day at 1914.
5 April 1943:
At 0952 departs Bell Buoy and arrives at Ssu Chiao Shan later that same day at 1325.
6 April 1943:
Transfers to rolling anchor.
9 April 1943:
At 0808 departs Ssu Chiao Shan and arrives at Wusong later in the day at 1653.
10 April 1943:
At 0506 departs Wusong and arrives at Shanghai later that day at 0909. Tethers to the Navy pier. Replenishes charcoal and boiler water.
12 April 1943:
At 0930 departs Shanghai and arrives at Jigujiao later that same day at 1917.
13 April 1943:
At 0710 departs Jigujiao on ASW patrol.
16 April 1943:
At 1012 arrives at Ssu Chiao Shan.
21 April 1943:
At 0957 departs Ssu Chiao Shan and arrives at Sheshan later in the day at 1719.
22 April 1943:
At 1208 departs Sheshan on night ASW patrol.
23 April 1943:
At 1332 arrives at Huang Ching Island. Lands a raiding party.
24 April 1943:
At 1302 departs Huang Ching Island and arrives at Ssu Chiao Shan later that day at 1705.
25 April 1943:
At 0801 departs Ssu Chiao Shan and arrives at Wusong later that same day at 1605.
26 April 1943:
At 0724 departs Wusong and arrives at Kiangnan later in the day at 1010. Tethers to buoy No. 2.
27 Apri1 ~ 2 June 1943:
Undergoes hull, machinery and weapons repairs.
3 June 1943:
At 1600 departs Kiangnan and arrives at Shanghai later in the day at 1800.
4 June 1943:
At 1645 departs Shanghai and arrives at Bai Long port later that day at 2005.
5 June 1943:
At 0510 departs Bai Long port and arrives at Ssu Chiao Shan later that same day at 1025.
11 June 1943:
At 0950 departs Ssu Chiao Shan on patrol and arrives back there later in the day at 1920.
12 June 1943:
At 0735 departs Ssu Chiao Shan northern tip and arrives at Ssu Chiao Shan southern tip later that day at 1000.
15 June 1943:
At 1100 departs Ssu Chiao Shan and arrives at Huaniaoshan later that same day at 1855.
16 June 1943:
At 0810 departs Huaniaoshan and arrives at Ssu Chiao Shan later in the day at 1125.
18 June 1943:
At 1355 departs Ssu Chiao Shan on navigation training and gunnery drill and arrives back there later that day at 1745.
19 June 1943:
At 1810 departs Ssu Chiao Shan on patrol.
20 June 1943:
At 0130 arrives at Wusong. Departs there at 0635 and arrives at Shanghai later that same day at 0900. Tethers to the Navy pier and replenishes charcoal and boiler water.
21 June 1943:
Fitted with minesweeping equipment and buoys.
22 June 1943:
At 1045 departs Shanghai and arrives at Jiuduan later in the day at 1720.
23 June 1943:
At 0920 departs Jiuduan and arrives at Huaniaoshan later that day at 1550.
27 June 1943:
At 0850 departs Huaniaoshan on ASW sweep five nautical miles N of Huaniaoshan and arrives at Luhuashan later that same day at 1200.
28 June 1943:
At 1100 departs Luhuashan on patrol off Jiaogui light buoy and arrives at Ssu Chiao Shan later in the day at 1440.
29 June 1943:
Reserve Lt Shimada Suetsugu is confirmed as CO. Departs Ssu Chiao Shan on night ASW patrol.
30 June 1943:
At 1730 arrives at Chiao Ban Island.
1 July 1943:
At 0955 departs Chiao Ban Island and arrives at Huaniaoshan later that day at 1420.
2 July 1943:
At 1645 departs Huaniaoshan and arrives at Kiangnan later that same day at 1715.
6 July 1943:
At 1520 departs Kiangnan and arrives at Shanghai later in the day at 1625.
8 July 1943:
At 0700 departs Shanghai and arrives at Ssu Chiao Shan later that day at 1815.
10 July 1943:
At 0800 departs Ssu Chiao Shan and arrives at Huaniaoshan later that same day at 1100.
13 July 1943:
At 1200 departs Huaniaoshan and arrives off Huaniaoshan coast later in the day at 1515.
13 ~ 16 July 1943:
Engages in minesweeping.
14 July 1943:
Betweem 0900 and 1245 engages in minesweeping.
16 July 1943:
Between 1400 and 1445 engages in minesweeping.
16 July 1943:
Departs Huaniaoshan coast and arrives at Huaniaoshan later that day.
17 July 1943:
Reports one lifeboat lost and one cutter damaged during a typhoon. At 0605 departs Huaniaoshan and arrives at Ssu Chiao Shan later that same day at 0940.
19 July 1943:
At 0840 departs Ssu Chiao Shan and arrives at Huaniaoshan later in the day at 1450.
20 July 1943:
At 0815 departs Huaniaoshan and arrives at Wusong later that day at 1610.
21 July 1943:
At 0555 departs Wusong and arrives at Shanghai later that same day at 0745. Tethers to the Navy pier and replenishes charcoal and boiler water.
22 July 1943:
At 1150 departs Shanghai and arrives at Hengsha later that same day at 1600.
23 July 1943:
At 0605 departs Hengsha and arrives at Huaniaoshan later in the day at 1225.
24 July 1943:
At 1050 departs Huaniaoshan and arrives at Ssu Chiao Shan later that day at 1245.
29 July 1943:
At 1136 departs Ssu Chiao Shan and arrives at Huaniaoshan later that same day at 1350.
1 ~3 August 1943:
Engages in minesweeping.
4 August 1943:
At 0920 departs Huaniaoshan and arrives at Wusong later in the day at 1824.
5 August 1943:
At 0625 departs Wusong and arrives at Kiangnan later that day at 0910.
6 ~ 8 August 1943:
Fitted with new capstan and anchor chains. Undergoes hull and weapons repairs.
9 August 1943:
At 1700 departs Kiangnan and arrives at Shanghai later that same day at 1800.
10 August 1943:
At 1200 departs Shanghai and arrives at Wusong later in the day at 1400.
11 August 1943:
At 1605 comes alongside the Army railway pier to cut off both anchors.
12 August 1943:
Fitted with provisional anchors.
13 August 1943:
Assigned to Shanghai District Forces, 4th Patrol Corps under Shanghai District instruction No. 291. At 1400 departs Wusong on recon mission and arrives off Gaoqiao Beach later that day at 1635.
14 August 1943:
At 0700 departs Gaoqiao Beach waters at end of recon mission and arrives at Wusong at 0940. At 1620 departs there and arrives at Kiangnan later that same day at 2000.
15 ~ 23 August 1943:
Undergoes holds cleaning, inside and outside maintenance, hull and weapons repairs and anchor chains care.
24 August 1943:
At 1835 departs Kiangnan.
25 August 1943:
At 0745 arrives at Luhuashan.
28 August 1943:
At 0845 departs Luhuashan and arrives at Ssu Chiao Shan later in the day at 1500.
30 August 1943:
At 1524 departs Ssu Chiao Shan on ASW sweep with auxiliary gunboat HOKOKU MARU and destroyer HASU. Drops five DCs. Supplied with eight DCs by gunboat craft No. 105.
31 August 1943:
The ships are joined by minelayer TAKASHIMA.
1 September 1943:
At 0515 arrives off Huaniaoshan.
2 September 1943:
At 0901 departs Huaniaoshan waters and arrives at Ssu Chiao Shan at 1442.
4 September 1943:
At 1912 departs Ssu Chiao Shan on patrol and arrives back there later that day at 20418.
6 September 1943:
At 1338 departs Ssu Chiao Shan again and arrives off Huaniaoshan later that same day at 1727.
7 September 1943:
At 0400 departs Huaniaoshan waters and arrives at Wusong later in the day at 1705.
8 September 1943:
At 0657 departs Wusong and arrives at Shanghai later that day at 0852.
9 September 1943:
At 0935 departs Shanghai and arrives at Pudong Bridge, Shanghai later that same day at 1030.
10 September 1943:
Replenishes charcoal and boiler water. At 1012 departs Pudong Bridge and arrives at Shanghai later in the day at 1119.
11 September 1943:
Replenishes charcoal and boiler water.
12 September 1943:
At 1152 departs Shanghai and arrives at the estuary entrance buoy later that day at 1808.
13 September 1943:
At 0227 departs the estuary entrance buoy on ASW sweep. Drops DCs on unidentified target.
14 September 1943:
At 1902 arrives at Ssu Chiao Shan.
18 September 1943:
At 1848 departs Ssu Chiao Shan and arrives at Luhuashan later that same day at 2204.
21 September 1943:
At 0516 departs Luhuashan and calls at Chen Quian Shan at 0950. Departs there at 1529 and arrives back at Luhuashan later in the day at 1830.
22 September 1943:
At 0829 departs Luhuashan again on gunnery drill and arrives back there later that day at 1254.
23 September 1943:
At 0755 departs Luhuashan again and calls at Ssu Chiao Shan at 0937. Departs there at 1343 and arrives at Hengsha later that same day at 2036.
24 September 1943:
At 0915 departs Hengsha and arrives at Huaniaoshan later in the day at 1534.
25 September 1943:
At 0438 departs Huaniaoshan escorting two unidentified troop transports and arrives at Luhuashan later that day at 2016.
26 September 1943:
At 0653 departs Luhuashan and arrives at Wusong later that day at 1556.
27 September 1943:
At 0856 departs Wusong and arrives at Shanghai later that same day at 1100.
28 September 1943:
At 1507 departs Shanghai and arrives at Wusong later in the day at 1708.
29 September 1943:
At 0656 departs Wusong and arrives in Jiuduan waters at 1005. Departs there at 1451 and arrives at Luhuashan later that day at 1603.
30 September 1943:
At 0930 departs Luhuashan and arrives at Luojia Shan later that same day at 1715.
3 October 1943:
At 0857 departs Luojia Shan and arrives at Ssu Chiao Shan later in the day at 1745.
4 October 1943:
At 0810 departs Ssu Chiao Shan on patrol. At 1015 arrives at Luhuashan and departs there at 1459.
5 October 1943:
At 0112 arrives at Luhuashan.
6 October 1943:
At 1110 departs Luhuashan and arrives at Wusong later that day at 1402.
7 October 1943:
At 0752 departs Wusong and arrives at Shanghai later that same day at 1000.
10 October 1943:
Reserve Lt Tauchi Hisao assumes command.
12 October 1943:
Reserve Lt Shimada disembarks. At 1443 departs Shanghai and arrives at Hengsha later in the day at 1803.
13 October 1943:
At 0700 departs Hengsha and arrives at Ssu Chiao Shan later that day at 1457.
15 October 1943:
At 0800 departs Ssu Chiao Shan on patrol and returns back there later that same day at 0910.
17 October 1943:
At 0658 departs Ssu Chiao Shan again and arrives at Luhuashan later in the day at 1435.
18 October 1943:
At 0754 departs Luhuashan and at 0923, arrives at Ssu Chiao Shan.
20 October 1943:
At 1457 departs Ssu Chiao Shan and arrives at Luhuashan later that day at 1640.
21 October 1943:
At 0457 departs Luhuashan escorting Tei-4 Convoy consisting of GOKOKU and KIYOSUMI MARUs and light cruisers NAKA and ISUZU escorted by fleet destroyer and arrives at Chen Quian Shan later that same day.
22 October 1943:
At 0913 departs Chen Quian Shan and arrives at Ssu Chiao Shan later in the day at 1146.
25 October 1943:
At 0654 departs Ssu Chiao Shan and arrives at Wusong later that day at 1816.
26 October 1943:
At 0615 departs Wusong and arrives at Kiangnan later that same day at 1000. Undergoes holds inspection.
27 October ~ 11 November 1943:
Undergoes holds, hull and weapons maintenance and repairs.
12 November 1943:
At 1210 departs Kiangnan and arrives at Shanghai later that same day at 1325. Replenishes charcoal and boiler water.
13 November 1943:
At 1420 departs Shanghai.
14 November 1943:
At 0325 arrives at Ssu Chiao Shan.
23 November 1943:
At 1102 departs Ssu Chiao Shan and arrives at Tantoushan later in the day at 2303.
24 November 1943:
At 0422 departs Tantoushan and arrives in Niubi Shan Strait later that day at 1803.
25 November 1943:
At 0455 departs Niubi Shan Strait and arrives at Ssu Chiao Shan later that same day at 1605.
26 November 1943:
Assigned to escort convoy No. 4 under Shanghai District instruction No. 66. At 0753 departs Ssu Chiao Shan and arrives at Wusong later in the day at 1728.
27 November 1943:
At 0907 departs Wusong and arrives at Shanghai later that same day at 1118.
28 November 1943:
At 1548 departs Shanghai and arrives at Bell Buoy later in the day at 2129.
29 November 1943:
At 0505 departs Bell Buoy and arrives at Zhangtushan later that day at 1355.
30 November 1943:
At 1454 departs Zhangtushan and arrives at Luojia Shan later that same day at 1718.
1 December 1943:
At 0656 departs Luojia Shan and arrives in Niubi Shan Strait later in the day at 0952.
2 December 1943:
At 0755 departs Niubi Shan Strait waters and arrives at Zhangtushan later that day at 1715.
3 December 1943:
From 1428-1531 transfers to rolling anchor.
5 December 1943:
From 0855-0938 supplied with fresh food at rolling anchor.
6 December 1943:
At 1459 departs Zhangtushan and meets up with TA-603 convoy consisting of CHEFOO, YULIN and SAINAN MARUs and arrives in Niubi Shan strait later that same day at 1910. The ship detaches from the convoy at this point and destroyer KURI takes over.
7 December 1943:
At 0639 departs Niubi Shan strait waters.
8 December 1943:
At 0215 arrives at Wusong. Departs there at 0658 and arrives at Shanghai later in the day at 0910.
10 December 1943:
Fresh food supplied.
12 December 1943:
At 0949 departs Shanghai and escorts CHOZAN MARU and arrives at Yawosha later that day at 1812.
13 December 1943:
At 0950 departs Yawosha and arrives at Zhangtushan later that same day at 1925.
14 December 1943:
At 1452 departs Zhangtushan and arrives at Taohua Shan later in the day at 1908.
15 December 1943:
At 0855 departs Taohua Shan and calls at Jiu Shan islands at 1218. Departs there later that day at 1857.
16 December 1943:
At 0528 arrives at Zhangtushan.
17 December 1943:
Fresh food supplied.
20 December 1943:
At 0759 departs Zhangtushan searching for an Army aircraft that ditched and arrives at there Tang Nao Shan later that same day at 1437.
21 December 1943:
At 0758 departs Tang Nao Shan resuming search for Army aircraft. Arrives at Zhenhai later in the day at 1344.
22 December 1943:
At 0851 departs Zhenhai and arrives at Wusong later that day at 2116.
23 December 1943:
At 0825 departs Wusong and arrives at Shanghai later that same day at 1008.
24 December 1943:
Supplied with stored grain products and fresh food. At 1446 departs Shanghai and arrives at Bell Buoy later in the day at 2047.
25 December 1943:
At 0752 departs Bell Buoy and arrives at Ssu Chiao Shan later that day at 1316.
26 December 1943:
At 1158 departs Ssu Chiao Shan and arrives at Niubi Shan later that same day at 1840.
27 December 1943:
At 0853 departs Niubi Shan and arrives at Jiu Shan Islands later in the day at 1321.
28 December 1943:
At 1308 departs Jiu Shan Islands and arrives at Niubi Shan later that day at 2019.
29 December 1943:
At 1153 departs Niubi Shan and arrives at Zhangtushan later that same day at 1728.
30 December 1943:
Fresh food supplied.
5 January 1944:
Fresh food supplied. At 1253 departs Zhangtushan and arrives at Niubi Shan later in the day at 1745.
6 January 1944:
At 0624 departs Niubi Shan and calls at Jiu Shan Islands at 1029. Departs there at 1443 and arrives at Zhangtushan later that day at 2335.
9 January 1944:
At 0645 departs Zhangtushan and arrives at Wusong later that same day at 2347.
10 January 1944:
At 0727 departs Wusong and arrives at Shanghai later in the day at 1015.
14 January 1944:
Supplied with fresh food and clothing. At 1451 departs Shanghai and arrives at Wusong later that day at 1723.
15 January 1944:
At 1752 departs Wusong and arrives at Ssu Chiao Shan later that same day at 1702.
16 January 1944:
At 0751 departs Ssu Chiao Shan and arrives at Zhangtushan later in the day at 1245.
18 January 1944:
At 1143 departs Zhangtushan escorting a convoy and arrives at Jiu Shan Islands later that day at 1942.
20 January 1944:
Fresh food supplied.
21 January 1944:
At 0756 departs Jiu Shan Islands and arrives at Zhangtushan later that same day at 1653.
26 January 1944:
At 0705, 13th Gunboat Division’s raiding parties assault village. At 1648, troops come back aboard.
27 January 1944:
Fresh food supplied. At 1054 departs Zhangtushan.
28 January 1944:
At 0127 arrives at Wusong. Departs there at 0727 and arrives at Shanghai later in the day at 0947.
29 January 1944:
At 1351 departs Shanghai and arrives at Yawosha later that day at 1737.
30 January 1944:
At 0752 departs Yawosha and arrives at Ssu Chiao Shan later that same day at 1755.
31 January 1944:
At 0721 departs Ssu Chiao Shan and arrives at Zhangtushan later in the day at 1224.
1 February 1944:
At 1058 departs Zhangtushan on patrol.
2 February 1944:
At 0252 arrives back at Zhangtushan. At 1049 departs there on patrol and arrives back to port later that day at 1113.
4 February 1944:
At 1601 departs Zhangtushan on patrol and arrives back to port later that same day at 1808.
8 February 1944:
At 0855 departs Zhangtushan and arrives at Ssu Chiao Shan later in the day at 1508.
9 February 1944:
At 0755 departs Ssu Chiao Shan and arrives at Wusong later that day at 1521.
10 February 1944:
At 0825 departs Wusong and arrives at Shanghai later that same day at 1107.
11 February 1944:
Undergoes maintenance, repairs and starts renovation.
14 February 1944:
Fresh food supplied.
16 February 1944:
Fresh food supplied.
19 February 1944:
Fresh food supplied.
18 February 1944:
Departs Dayang Shan and arrives at Dinghai. Departs there later that day.
20 February 1944:
Released from the 13th Gunboat Division under instruction No. 345. Removed from the Navy’s list under instruction No. 346. Registered again that same day as an auxiliary transport (Otsu) category attached to the Yokosuka Naval Base with Yokosuka as home port under instruction No. 347. Assigned directly to the Navy’s Department. [4]
14 March 1944:
Departs Shanghai.
20 March 1944:
Arrives at Sasebo.
15 April 1944:
Departs Sasebo.
16 April 1944:
Arrives at Sakito, Kyushu. Departs there later in the day.
17 April 1944:
Arrives at Tokuyama, Yamaguchi Prefecture.
24 April 1944:
Departs Tokuyama.
25 April 1944:
Arrives at Kobe.
26 April 1944:
Departs Kobe in convoy No. 8427 also consisting of civilian (C-AK) wartime standard 2E Type cargo ship TAKA MARU.
27 April 1944:
Arrives at Yura, Wakayama Prefecture.
28 April 1944:
Departs Yura and calls at Kushimoto, Wakayama Prefecture. Departs there later that day.
29 April 1944:
Arrives at Sakata, Yamagata Prefecture. Departs there later that same day.
1 May 1944:
Arrives at Yokohama.
6 May 1944:
At 1430, departs Yokohama in convoy No. 3506 also consisting of auxiliary storeships MAMIYA and TAKUNAN MARUs, auxiliary transport UNKAI MARU No. 10 and IJA transport KAIKO MARU escorted by auxiliary cable layer OSEI MARU, auxiliary subchasers SHOWA MARU No. 8, CHa-54, CHa-56 and CHa-57. The convoy arrives at Tateyama later in the day.
8 May 1944:
The convoy departs Tateyama. Auxiliary minesweeper SHOWA MARU No. 7 bolsters the escort.
10 May 1944:
Due to mechanical failure, SHOWA MARU No. 7 straggles behind the convoy.
12 May 1944:
The convoy arrives at Futami Harbour, Chichi-Jima, Ogasawara Gunto (Bonins).
14 May 1944:
Departs Chichi-Jima still in convoy No. 3506 at this point also consisting of auxiliary storeships MAMIYA and TAKUNAN MARUs, auxiliary transports TAITO MARU and UNKAI MARU No. 10 and IJA transport KAIKO MARU escorted by auxiliary cable layer OSEI MARU, auxiliary subchasers SHOWA MARU No. 7 and SHOWA MARU No. 8, CHa-54, CHa-56 and CHa-57 and auxiliary netlayer KISHIN MARU.
15 May 1944:
UNKAI MARU No. 10 is detached from the convoy at some point and arrives at Iwo Jima, Ogasawara Gunto later that day.
20 May 1944:
The convoy arrives at Saipan, Marianas.
22 May 1944:
Departs Saipan and calls at Tinian, Marianas. Departs there and arrives back at Saipan later in the day.
June 1944:
Bombed by USN aircraft and/or shelled by USN warships and sunk in Tanapag Harbour, Saipan with unknown casualties. [5]
10 March 1945:
Removed from the Navy’s list under instruction No. 232.
________________________________________
Authors notes :
[1] Not to be confused with IJA tanker No. 2051 (5,593 GRT, ’22), or auxiliary netlayer (773 GRT ’28).
[2] NRT is a ship's cargo volume capacity expressed in "register tons", one of which equals to a volume of 100 cubic feet (2.83 m3). It is calculated by subtracting non-revenue-earning spaces i.e. spaces not available for carrying cargo, for example engine rooms, fuel tanks and crew quarters, from the ship's gross register tonnage (GRT). Net register tonnage (NRT) is not a measure of the weight of the ship or its cargo, and should not be confused with terms such as deadweight tonnage or displacement.
[3] LISBON MARU was torpedoed by (later Cdr) Rob R. McGregor's (USNA ’29) USS GROUPER (SS-214). She sank on 2 Oct ’42 at 30-17N, 123-13E with the loss of three IJA soldiers and 826 POWs.
[4] There were two categories of Zatsuyosen. (Ko) category with an IJN Captain as supervisor aboard and (Otsu) category without.
[5] Alden’s 4th Ed. reports SHOSEI MARU as torpedoed and sunk off Saipan on 20 Jun ’44 by USS SILVERSIDES (SS-236) but that statement is probably incorrect according to Japanese sources.
Thanks go to Gengoro S. Toda of Japan. Thanks go also to Gregory Ampen of France for assistance with the picture.
Gilbert Casse and Peter Cundall.
Back to
IJN Transports Page
