Japanese Auxiliary Netlayers

KYUSETSUMOKAN!

BOSEMMOTEI!

(KUDAMATSU MARU, prewar – Peter Cundall Collection)

IJN KUDAMATSU MARU :
Tabular Record of Movement

© 2020 Gilbert Casse, Berend van der Wal and Peter Cundall

June 1936:
Nagasaki. Laid down by Matsuo Tekkosho K.K. for Toyokohan K.K. as a 294-tons cargo ship.
31 August 1936:
Launched and named KUDAMATSU MARU.
September 1936:
Completed with a Gross Registered Tonnage (GRT) of 294-tons and Net Registered Tonnage (NRT) of 158-tons. Her registered homeport is Osaka. [1]
1937:
Her GRT and NRT are respectively changed to 295-tons and 159-tons. [1]
1938:
Her ownership is changed to Nagasaki Kisen G. K.
26 March 1939:
Arrives at Anqing (Anking), China.
27 March 1937:
Departs Anqing.
19 June 1939:
Arrives at Nankin, China.
1 September 1939:
Departs Nankin.
1941:
Her registered homeport is changed to Nagasaki.
18 November 1941:
Scheduled for requisition.
19 January 1942:
Requisitioned by the IJN.
22 January 1942:
Undergoes cargo operations at Sasebo.
23 January 1942:
Nagasaki. Conversion to military duty begins at Mitsubishi Heavy Industry K.K. Shipyard.
1 February 1942:
Registered as an auxiliary netlayer attached to the Kure Naval District under instruction No. 199. Assigned to Saeki Base Defense Unit under instruction No. 207. Tactically assigned to Kure Guard Force, Kure Local Defense Squadron, Saeki Base Defense Unit.
10 February 1942:
The conversion is completed. Navy (Resv) Lt Kaumi Naotoshi is appointed CO. Departs Nagasaki and arrives at Sasebo later this day.
17 February 1942:
Departs Sasebo for a gun inspection and returns there later that day.
5 March 1942:
Departs Sasebo and arrives at Maehata inlet later this day.
6 March 1942:
Departs Maehata inlet.
7 March 1942:
Arrives at Mimitsu.
8 March 1942:
Departs Mimitsu and arrives at Saeki later that day.
16 March 1942:
Lt Kaumi is confirmed as CO. Departs Saeki to patrol Area C.
17 March 1942:
Arrives at Saeki.
20 March 1942:
Departs Saeki to patrol Area C.
21 March 1942:
Arrives at Saeki.
23 March 1942:
Departs Saeki to patrol Area C.
24 March 1942:
Arrives at Saeki.
25 March 1942:
Departs Saeki to patrol Area F.
26 March 1942:
Arrives at Saeki.
28 March 1942:
Departs Saeki to patrol Area C. Arrives at Nyuzu later this day.
29 March 1942:
Departs Nyuzu guiding IJA oiler OMUROSAN MARU and arrives at Kamae later that day.
30 March 1942:
Departs Kamae and arrives at Saeki later this day.
2 April 1942:
Departs Saeki on gunnery practice and returns to port later that day.
6 April 1942:
Departs Saeki on anti-submarine training.
7 April 1942:
Arrives at Saeki.
8 April 1942:
Departs Saeki on anti-submarine training and returns there later this day.
9 April 1942:
Departs Saeki to patrol Area B and returns later that day.
10 April 1942:
Departs Saeki to patrol Area C.
11 April 1942:
Arrives at Saeki.
12 April 1942:
Departs Saeki to patrol Area D and later act as a target ship.
13 April 1942:
Arrives at Saeki.
14 April 1942:
Departs Saeki to patrol Area C.
15 April 1942:
Arrives at Saeki.
16 April 1942:
Departs Saeki to patrol Area C.
17 April 1942:
Arrives at Saeki.
18 April 1942:
Departs Saeki to patrol Area F.
19 April 1942:
Arrives at Saeki.
20 April 1942:
Departs Saeki to patrol Areas A and F.
21 April 1942:
Arrives at Saeki.
22 April 1942:
Departs Saeki to patrol Areas E and F.
23 April 1942:
Arrives at Saeki.
24 April 1942:
Departs Saeki to patrol Areas E and F.
25 April 1942:
Arrives at Saeki.
27 April 1942:
Departs Saeki to patrol Area F.
28 April 1942:
Arrives at Saeki.
30 April 1942:
Departs Saeki to patrol Area F and returns to port later this day.
1 May 1942:
Departs Saeki to patrol Area F and returns there later that day.
14 May 1942:
Departs Saeki on trials and returns there later this day.
15 May 1942:
Departs Saeki to patrol Area C and gunnery practice.
16 May 1942:
Arrives at Saeki.
18 May 1942:
Departs Saeki to patrol Areas C and D.
19 May 1942:
Arrives at Saeki.
20 May 1942:
Departs Saeki to patrol Area E.
21 May 1942:
Arrives at Saeki.
22 May 1942:
Departs Saeki to patrol Area E.
23 May 1942:
Arrives at Saeki. Departs there on patrol later that day.
24 May 1942:
Arrives at Saeki.
26 May 1942:
Departs Saeki to patrol Areas C and D.
27 May 1942:
Arrives at Saeki.
29 May 1942:
Arrives at Saeki. Departs there on patrol later in the day.
30 May 1942:
Arrives at Saeki.
1 June 1942:
Departs Saeki.
2 June 1942:
Arrives at Saeki.
4 June 1942:
Departs Saeki.
5 June 1942:
Arrives at Saeki.
7 June 1942:
Departs Saeki.
8 June 1942:
Arrives at Saeki.
10 June 1942:
Departs Saeki.
11 June 1942:
Arrives at Saeki.
13 June 1942:
Departs Saeki.
14 June 1942:
Arrives at Saeki.
16 June 1942:
Departs Saeki.
17 June 1942:
Arrives at Saeki.
18 June 1942:
Departs Saeki on a towing and depth charge throwing practice and returns to port later this day.
19 June 1942:
Departs Saeki.
20 June 1942:
Arrives at Saeki.
22 June 1942:
Departs Saeki.
23 June 1942:
Arrives at Saeki.
24 June 1942:
Departs Saeki and returns there later that day.
25 June 1942:
Departs Saeki on anti-submarine warfare training and patrol.
26 June 1942:
Arrives at Saeki.
28 June 1942:
Departs Saeki.
29 June 1942:
Arrives at Saeki.
1 July 1942:
Departs Saeki.
2 July 1942:
Arrives at Saeki.
4 July 1942:
Departs Saeki.
5 July 1942:
Arrives at Saeki.
7 July 1942:
Departs Saeki on anti-submarine warfare training and to patrol Areas M and N.
9 July 1942:
Arrives at Saeki.
11 July 1942:
Departs Saeki.
12 July 1942:
Arrives at Saeki.
14 July 1942:
Departs Saeki.
15 July 1942:
Arrives at Saeki.
17 July 1942:
Departs Saeki and arrives at Kure later that day.
27 August 1942:
Departs Kure on a trial run and returns there later this day.
28 August 1942:
Departs Kure on a trial run and returns to port later that day.
31 August 1942:
Departs Kure and arrives at Saeki later this day.
3 September 1942:
Departs Saeki.
4 September 1942:
Arrives at Saeki.
6 September 1942:
Departs Saeki.
7 September 1942:
Arrives at Saeki.
9 September 1942:
Departs Saeki.
10 September 1942:
Arrives at Saeki.
12 September 1942:
Departs Saeki.
13 September 1942:
Arrives at Saeki.
15 September 1942:
Departs Saeki.
16 September 1942:
Arrives at Saeki.
18 September 1942:
Departs Saeki on patrol and installation of an anti-submarine net.
19 September 1942:
Arrives at Saeki.
21 September 1942:
Departs Saeki.
22 September 1942:
Arrives at Saeki.
24 September 1942:
Departs Saeki.
25 September 1942:
Arrives at Saeki.
27 September 1942:
Departs Saeki.
28 September 1942:
Arrives at Saeki.
30 September 1942:
Departs Saeki.
1 October 1942:
Arrives at Saeki.
E 2 October 1942:
Navy (Resv) Lt Osuka Goro is appointed CO.
3 October 1942:
Departs Saeki.
4 October 1942:
Arrives at Saeki.
6 October 1942:
Departs Saeki.
7 October 1942:
Arrives at Saeki.
9 October 1942:
Departs Saeki.
10 October 1942:
Arrives at Saeki.
12 October 1942:
Departs Saeki.
14 October 1942:
Arrives at Saeki.
15 October 1942:
Departs Saeki.
16 October 1942:
Arrives at Saeki.
17 October 1942:
Departs Saeki.
18 October 1942:
Arrives at Shimaura and departs there later that day.
19 October 1942:
Arrives at Furue and departs there later this day.
20 October 1942:
Arrives at Inokushi, departs there and arrives at Saeki later that day.
23 October 1942:
Departs Saeki.
24 October 1942:
Arrives at Saeki.
25 October 1942:
Departs Saeki.
26 October 1942:
Arrives at Saeki.
27 October 1942:
Departs Saeki.
28 October 1942:
Arrives at Saeki.
29 October 1942:
Departs Saeki.
30 October 1942:
Arrives at Saeki.
November 1942:
Navy (Resv) Lt Kamata Ryounosuke is appointed CO.
1 November 1942:
Departs Saeki.
2 November 1942:
Arrives at Saeki.
4 November 1942:
Departs Saeki on gunnery practice and patrol.
5 November 1942:
Arrives at Saeki.
6 November 1942:
Departs Saeki.
8 November 1942:
Arrives at Saeki.
10 November 1942:
Departs Saeki.
11 November 1942:
Arrives at Saeki.
13 November 1942:
Departs Saeki.
14 November 1942:
Arrives at Saeki.
16 November 1942:
Departs Saeki.
17 November 1942:
Arrives at Saeki.
19 November 1942:
Departs Saeki on patrol and anti-submarine sweep.
21 November 1942:
Arrives at Saeki.
22 November 1942:
Departs Saeki.
23 November 1942:
Arrives at Saeki.
24 November 1942:
Departs Saeki acting as a Y equipment experiment target ship and returns to port later this day.
25 November 1942:
Departs Saeki acting as a Y equipment experiment target ship and returns there later this day.
26 November 1942:
Departs Saeki acting as a Y equipment experiment target ship and returns to port later this day.
27 November 1942:
Departs Saeki acting as a Y equipment experiment target ship and returns there later that same day.
28 November 1942:
Departs Saeki acting as a Y equipment experiment target ship.
29 November 1942:
Arrives at Saeki.
1 December 1942:
Departs Saeki.
2 December 1942:
Arrives at Saeki.
4 December 1942:
Departs Saeki.
5 December 1942:
Arrives at Saeki.
7 December 1942:
Departs Saeki.
8 December 1942:
Arrives at Saeki.
10 December 1942:
Departs Saeki.
11 December 1942:
Arrives at Saeki.
13 December 1942:
Departs Saeki.
14 December 1942:
Arrives at Saeki.
15 December 1942:
Departs Saeki.
16 December 1942:
Arrives at Saeki.
17 December 1942:
Departs Saeki.
18 December 1942:
Arrives at Saeki.
19 December 1942:
Departs Saeki.
20 December 1942:
Arrives at Saeki.
21 December 1942:
Departs Saeki.
22 December 1942:
Arrives at Saeki.
23 December 1942:
Departs Saeki.
24 December 1942:
Arrives at Saeki.
26 December 1942:
Departs Saeki.
27 December 1942:
Arrives at Shimaura, departs there and arrives at Saeki later that day.
29 December 1942:
Departs Saeki.
30 December 1942:
Arrives at Saeki.
1 January 1943:
Departs Saeki.
2 January 1943:
Arrives at Saeki.
4 January 1943:
Departs Saeki.
5 January 1943:
Arrives at Saeki.
6 January 1943:
Departs Saeki.
7 January 1943:
Arrives at Saeki. Attached to a special sweeping unit assigned to carry out anti-submarine sweeps during the day and night in Areas D and I under Instruction No. 53.
8 January 1943:
Departs Saeki and arrives at Motoyama. Departs there later that day.
9 January 1943:
Arrives at Kamae and departs there later this day.
10 January 1943:
Arrives at Shimanoura and departs there later that day.
11 January 1943:
Arrives at Kamae and departs there later this day.
12 January 1943:
Arrives at Saeki. Returns to specified tasks under Kure Defense Wireless Command No. 98.
15 January 1943:
Changes anchorage.
25 January 1943:
Departs Saeki on a trial run and returns to port later that day.
26 January 1943:
Navy (Resv) Lt(jg) Ehara Masata is appointed CO.
5 February 1943:
Changes anchorage.
7 February 1943:
Changes anchorage.
8 February 1943:
Anchors along shore.
10 February 1943:
Changes mooring.
11 February 1943:
Changes anchorage.
13 February 1943:
Departs Saeki and arrives at Honura later this day.
14 February 1943:
Departs Honura and arrives at Saeki later that day.
15 February 1943:
Anchors along shore.
17 February 1943:
Departs Saeki.
18 February 1943:
Arrives at Saeki.
20 February 1943:
Departs Saeki.
21 February 1943:
Arrives at Saeki.
22 February 1943:
Attached to a special sweeping unit assigned to carry out anti-submarine sweeps during the day and night in Areas D, O and I under instruction No. 67. Departs Saeki later in the day.
23 February 1943:
Scheduled to return at home base after ending anti-submarine sweep at night on 23 Feb ’43 under Kure Naval District instruction No. 54.
24 February 1943:
Arrives at Saeki.
25 February 1943:
Departs Saeki.
26 February 1943:
Arrives at Saeki.
1 March 1943:
Changes anchorage.
3 March 1943:
Departs Saeki.
4 March 1943:
Arrives at Saeki.
6 March 1943:
Departs Saeki.
7 March 1943:
Arrives at Saeki.
9 March 1943:
Departs Saeki.
10 March 1943:
Arrives at Saeki.
11 March 1943:
Departs Saeki on a trial run and returns to port later this day.
12 March 1943:
Changes anchorage.
20 March 1943:
Departs Saeki on a trial run and returns there later this day.
22 March 1943:
Departs Saeki on a trial run and returns to port later this day.
25 March 1943:
Departs Saeki on a trial run and returns there later this day.
26 March 1943:
Departs Saeki on anti-submarine practice.
27 March 1943:
Arrives at Saeki.
28 March 1943:
Changes anchorage.
29 March 1943:
Scheduled to replace auxiliary netlayer SANSUI MARU under Saeki Base Defense Unit telegram No. 3. After ending training that night, proceeds next morning to G line Area from the temporary berth as appropriate. Departs Saeki that same day on an anti-submarine training and then on patrol.
31 March 1943:
Arrives at Saeki.
2 April 1943:
Departs Saeki.
3 April 1943:
Arrives at Saeki.
5 April 1943:
Departs Saeki.
6 April 1943:
Arrives at Saeki.
8 April 1943:
Departs Saeki.
9 April 1943:
Arrives at Saeki.
10 April 1943:
Departs Saeki.
12 April 1943:
Arrives at Saeki.
13 April 1943:
Departs Saeki.
14 April 1943:
Arrives at Saeki.
15 April 1943:
Departs Saeki.
16 April 1943:
Arrives at Saeki.
18 April 1943:
Departs Saeki.
19 April 1943:
Arrives at Saeki.
21 April 1943:
Departs Saeki.
22 April 1943:
Arrives at Saeki.
24 April 1943:
Departs Saeki.
25 April 1943:
Arrives at Saeki.
27 April 1943:
Departs Saeki.
28 April 1943:
Arrives at Saeki.
30 April 1943:
Departs Saeki.
1 May 1943:
Arrives at Saeki.
3 May 1943:
Departs Saeki.
4 May 1943:
Arrives at Saeki.
6 May 1943:
Departs Saeki on patrol and gunnery training.
7 May 1943:
Arrives at Saeki.
11 May 1943:
Departs Saeki on a trial run and returns to port later that day.
12 May 1943:
Departs Saeki.
13 May 1943:
Arrives at Saeki.
14 May 1943:
Departs Saeki.
15 May 1943:
Arrives at Saeki.
16 May 1943:
Departs Saeki on a trial run and returns there later that day.
17 May 1943:
Departs Saeki.
18 May 1943:
Arrives at Saeki.
19 May 1943:
Departs Saeki.
20 May 1943:
Arrives at Saeki.
22 May 1943:
Departs Saeki.
23 May 1943:
Arrives at Saeki.
25 May 1943:
Departs Saeki.
26 May 1943:
Arrives at Saeki.
28 May 1943:
Departs Saeki.
29 May 1943:
Arrives at Saeki.
31 May 1943:
Departs Saeki.
1 June 1943:
Arrives at Saeki.
3 June 1943:
Departs Saeki.
4 June 1943:
Arrives at Saeki.
6 June 1943:
Departs Saeki.
7 June 1943:
Arrives at Saeki.
9 June 1943:
Departs Saeki.
10 June 1943:
Arrives at Saeki.
11 June 1943:
Departs Saeki.
12 June 1943:
Arrives at Saeki.
14 June 1943:
Departs Saeki.
14 June 1943:
Arrives at Toromezu.
15 June 1943:
Departs Toromezu and arrives at Saeki later this day.
17 June 1943:
Departs Saeki and returns to port later that day.
18 June 1943:
Departs Saeki and arrives at Gunchu later that day.
19 June 1943:
Departs Gunchu and arrives at Innoshima later this day.
July 1943:
Navy Lt (jg) Okuyama Shiro is appointed CO.
9 July 1943:
Departs Innoshima on a trial run and returns there later that day.
11 July 1943:
Departs Innoshima and arrives at Kure later this day.
12 July 1943:
Departs Kure and arrives at Higashiura later that day.
13 July 1943:
Departs Higashiura and arrives at Saeki later this day.
17 July 1943:
Departs Saeki.
18 July 1943:
Arrives at Saeki.
21 July 1943:
Departs Saeki and arrives at Hashirajima later that day.
23 July 1943:
Departs Hashirajima and arrives at Murotsu later this day.
24 July 1943:
Departs Murotsu and arrives at Saeki later that day.
26 July 1943:
Departs Saeki.
27 July 1943:
Arrives at Saeki.
31 July 1943:
Departs Saeki.
1 August 1943:
Arrives at Saeki.
3 August 1943:
Departs Saeki.
4 August 1943:
Arrives at Saeki.
5 August 1943:
Departs Saeki.
6 August 1943:
Arrives at Saeki.
7 August 1943:
Departs Saeki.
8 August 1943:
Arrives at Saeki.
9 August 1943:
Departs Saeki.
10 August 1943:
Arrives at Saeki.
11 August 1943:
Departs Saeki.
12 August 1943:
Arrives at Saeki.
13 August 1943:
Departs Saeki.
14 August 1943:
Arrives at Saeki.
15 August 1943:
Departs Saeki.
16 August 1943:
Arrives at Saeki.
17 August 1943:
Departs Saeki.
18 August 1943:
Arrives at Saeki.
19 August 1943:
Departs Saeki and returns to port later this day.
20 August 1943:
Departs Saeki.
21 August 1943:
Arrives at Saeki.
23 August 1943:
Departs Saeki.
24 August 1943:
Arrives at Saeki.
26 August 1943:
Departs Saeki and returns there later that day.
27 August 1943:
Departs Saeki.
29 August 1943:
Arrives at Saeki.
30 August 1943:
Departs Saeki.
31 August 1943:
Searches for a crashed aircraft and arrives at Saeki later this day.
September 1943:
Navy Lt Shinichiro Tsuji is appointed CO.
1 September 1943:
Departs Saeki.
2 September 1943:
Arrives at Saeki.
3 September 1943:
Departs Saeki.
4 September 1943:
Arrives at Saeki.
6 September 1943:
Departs Saeki.
7 September 1943:
Arrives at Saeki.
8 September 1943:
Departs Saeki.
9 September 1943:
Arrives at Saeki.
10 September 1943:
Departs Saeki.
11 September 1943:
Arrives at Saeki.
12 September 1943:
Departs Saeki.
13 September 1943:
Arrives at Saeki.
14 September 1943:
Changes mooring.
27 September 1943:
Departs Saeki on a trial run and returns there later that day.
29 September 1943:
Departs Saeki.
30 September 1943:
Arrives at Murotsu.
1 October 1943:
Departs Murotsu and arrives at Kure later this day.
4 October 1943:
Changes mooring.
16 October 1943:
Changes mooring.
18 October 1943:
Departs Kure on training and returns to port later that day.
19 October 1943:
Departs Kure on training and returns there later this day.
21 October 1943:
Departs Kure.
22 October 1943:
Arrives at Kobe.
24 October 1943:
Departs Kobe.
25 October 1943:
Arrives at Kure.
30 October 1943:
At 1001, escort piloting for the Navy the 101st aircraft refueling sailboat group is revised up to Makurazaki under secret order No. 301600. Departs Kure.
31 October 1943:
Arrives at Ezaki.
3 November 1943:
Departs Moji escorting a 20 ship fishing boat/motor sailboat convoy bound for Balikpapan via Naha, Kwaren, Takao, Manila, and Tarakan. The ships include KONGO MARU No. 7, HINODE MARU No. 15, BAYOTO MARU No. 6, HIYOSHI MARU No. 3, ASAHI MARU No. 1, KOSEI MARU No. 1, KYOURA MARU No. 8, HINODE MARU No. 1, YAOSHITAKA MARU, TAIYU MARU No. 1, TOKAI MARU No. 1 and TAISEI MARU No. 1.
5 November 1943:
Scheduled to remove netlayer equipment and minesweeping equipment and make the ship suitable for transport missions. Armament will be increased with one Type 92 7.7mm MG.
10 November 1943:
Arrives at Saeki. Attached to Vice Admiral Kusaka Jinichi’s (37) Southeastern Area Fleet, RC Defense Force, under instruction No. 2381.
4 December 1943:
Attached to the West Guard Naval Escort Unit under New Guinea Corps Telegram No. 3.
8 January 1944:
Departs Kure and arrives at Moji later that day.
9 January 1944:
Departs Moji and arrives at Kobe later this day.
11 January 1944:
Auxiliary netlayer KOA MARU No. 2 GO transfers 400 bales of milled rice for the 8th Army Division and personnel property for the 88th Security Guard.
13 January 1944:
Departs Kobe and later meets up and escorts westbound auxiliary HARUSHIMA MARU (ex-USAMP Col. GEORGE F. E. HARRISON) partway. The ships are later joined by auxiliary netlayer SHOSEI MARU. At an unknown date and time, detached from escort duties.
15 January 1944:
Arrives at Yokosuka.
17 January 1944:
Departs Yokosuka and arrives at Tateyama Bay later that day.
18 January 1944:
Departs Tateyama Bay with auxiliary netlayer HIRO MARU and minesweeper W-23 escorting convoy No. 3017.
19 January 1944:
Arrives at Mikurajima, Izu Shoto (Islands), departs later and arrives at Hachijojima, Izu Shoto (Islands) later this day.
21 January 1944:
Departs Hachijojima.
24 January 1944:
Arrives at Chichi-Jima, Bonins.
27 January 1944:
Departs Chichi-Jima.
31 January 1944:
At 2105, auxiliary netlayer HIRO MARU is torpedoed and sunk by USS TULLIBEE at 15-21N 145-31E with the loss of one crewman and 55 passengers. Later that day the convoy arrives at Saipan.
7 May 1944:
Scheduled to embark 4,200 Army soldiers from torpedoed and heavily damaged IJA transport AOBASAN MARU under instruction No. 89. Departs Zamboanga, Mindanao, Philippines. At 1615, arrives at AOBASAN MARU distress site together with auxiliary subchaser No. 11. At 1747, auxiliary salvage ship MIHU MARU arrives.
8 May 1944: Arrives at Zamboanga.
25 May 1944:
Attached to Vice Admiral Oka Arata’s (40) Third Southern Expeditionary Fleet under instruction No. 708.
23 July 1944:
Implements patrols within a radius of 2,7 nautical miles centered on IJN general requisitioned transport NATSUKAWA MARU, beached at the San Ramon coast (06-59N, 121-56E) after being torpedoed by LtCdr William C. Thompson's (USNA ’35) USS CABRILLA (SS-288).
14 December 1944:
Towed to a Hong Kong shipyard.
18 December 1944:
Unloads in the Hong Kong shipyard.
28 January 1945:
Actual CO disembarks.
25 February 1945:
Repairs are completed.
1 March 1945:
At Hong Kong. Navy Lt Uchida Taro is appointed CO.
5 March 1945:
Attached to the Second China Fleet under instruction No. 203.
6 March 1945:
Carries out speed tests: first 8.76 knots, second 9.54 and third 9.07.
9 March 1945:
Loads ammunition and fuel.
11 March 1945:
Undergoes maintenance of weapons.
13 March 1945:
Departs Hong Kong on MGs practice.
14 March 1945:
Arrives at Sanmen Island, China.
16 March 1945:
Alongside Mukojima pier, Sanmen Island and equipped with weapons and ammunition.
17 March 1945:
Loads weapons. Departs Sanmen Island for Amoy (now Xiamen), China.
18 March 1945:
Returns to Sanmen Island, Mukojima pier.
22 March 1945:
Departs Sanmen Island for Amoy.
23 March 1945:
Undergoes an air attack.
24 March 1945:
Changes course and arrives at Hong Kong craft department quay later that day.
28 March 1945:
Installation of armored plates on the bridge begins.
20 August 1945:
Remains in service.
28 September 1946:
Removed from the Navy’s list under instruction No. 286.
1950:
Still appearing in the Japanese shipping register. After that, trace lost.

Authors' Notes:
[1] 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.
Thanks go to Gengoro S. Toda of Japan.

- Gilbert Casse, Berend van der Wal and Peter Cundall.

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