RIKUGUN YUSOSEN

Stories and Battle Histories of Selected Imperial Army Transports

1 September 2017

By Bob Hackett with Erich Muehlthaler, Sander Kingsepp and Gilbert Casse


(LISBON MARU by Ueda Kihachiro)



Vessels requisitioned by the Imperial Army (IJA) were converted to military use and became Rikugun Yusosen (IJA Transports)(A) used to transport troops and military equipment including tanks, weapons, munitions, crated aircraft, parts and stores. Many other Army requisitioned vessels were given other wartime roles.

There were also Army/Civilian (A/C) shared employments. These ships were called Haitosen. Normally, this meant that on its outbound journey the vessel was under Army control carrying troops, military supplies, etc., and on its return voyage carried cargo for the benefit of its civilian owner(s). Haitosen also received Army transport numbers like Army requisitioned vessels (A). Employments could also be expanded, meaning that the ship was used by Army for one full turn (outward and homeward voyage) or even a series of voyages.

This page will cover the activities of 283 IJA auxiliary transports including seven captured Allied ships.


Tabular Records of Movement (TROMs):
Rikugun Yusosen - IJA Auxiliary Transports
(Classes link to specifications summaries)

LYONS MARU
Class

Lisbon Maru
(revised 6/1/2015)
Maebashi Maru
(posted 9/1/2016)
Takaoka Maru
(posted 11/1/2014)

TAIYO MARU
Class

Taiyo Maru
(posted 10/15/2011)
TAKACHIHO
MARU
Class

Takachiho Maru
(revised 5/1/2016)
UYO MARU
Class

Shinanogawa Maru
(posted 10/6/2012)
CANBERRA MARU
Class

Canberra Maru
(revised 12/1/2013)

SOMEDONO MARU
Class

Bengal Maru
(revised 5/1/2016)
Calcutta Maru
(posted 12/10/2011)
Himalaya Maru
(revised 4/1/2016)
Yoneyama (ex-Kaian Maru
(revised 4/1/2016)
Konan Maru
(revised 4/1/2016)
Muroran Maru
(revised 4/1/2017)
Somedono Maru
(revised 5/1/2016)

ALASKA
MARU
Class

Alaska Maru
(revised 5/1/2016)
Atlas Maru
(revised 5/1/2016)

EASTERN GLADE
Class

Hamburg Maru
(revised 4/1/2017)
EASTERN GUIDE
Class

Bandoeng Maru
(posted 11/1/2013)
Tateishi Maru
(posted 9/1/2016)
EASTERN SHORE
Class

Choko (ex-Seinu) Maru
(posted 4/1/2016)
Kyokko (ex-Ypres) Maru
(posted 4/1/2016)
Tamahoko Maru
(posted 11/1/2013)
Shunko Maru
(revised 12/1/2016)

EASTERN SWORD
Class

Ugo Maru
(revised 5/1/2016)
CELEBES MARU
No. 1
Class

Celebes Maru
(revised 1/1/2016)
Borneo Maru
(revised 5/1/2016)
Sumatra Maru
(posted 3/2/2013)

DAIFUKU MARU
No. 1
Class

Aden Maru
(revised 5/1/2016)
Belgium Maru
(revised 5/1/2016)
Brazil Maru
(revised 5/1/2016)
China Maru
(posted 1/1/2016)
Denmark Maru
(revised 3/1/2016)
Daifuku Maru
England Maru
(revised 3/1/2017)
Fukuyo Maru
(posted 7/1/2014)
France Maru
(revised 3/1/2017)
Glasgow Maru
(revised 3/1/2017)
Hibi Maru
(posted 6/1/14)
Hiteru Maru
(posted 6/1/16)
Hofuku Maru
(posted 11/1/14)
India Maru
(revised 5/1/2016)
Italy Maru
(revised 7/1/2016)
Liverpool Maru
(revised 4/1/16)
Naples Maru
(posted 2/1/2014)
Nagato Maru
(posted 3/1/2014)
Nichimei_Maru
(posted 11/1/2016)
Norway Maru
(posted 12/1/2013)
Ohio Maru
(revised 2/1/2016)
Oregon Maru
(revised 2/1/2016)
Pacific Maru
(revised 9/1/14)
San Francisco Maru
(posted 3/1/16)
Shinsei Maru No. 1
(revised 6/1/2014)
Singapore Maru
(revised 7/1/2016)
Thames Maru
(posted 6/1/14)
Ume Maru
(posted 10/1/2014)

TACOMA
MARU
Class

Tacoma Maru
(revised 5/1/2016)
Mexico Maru
(revised 6/1/16)
Panama Maru
(posted 12/1/2014)

YOSHIDA
MARU No. 1.
Class

Boston Maru
(posted 7/7/2012)
Buyo Maru
(posted 10/1/2013)
Clyde Maru
(revised 6/1/16)
Erie Maru
(posted 10/1/2013)
Havre Maru
(revised 6/1/16)
Kashu Maru

Malta Maru
(posted 12/1/2013)
Meigen Maru
(posted 10/1/2014)
Milan Maru
(posted 6/1/16)
Yoshida Maru
No. 1

(posted 3/1/2014)

YOSHIDA MARU
No. 2.
Class

Suez Maru
(revised 4/1/2016)


SAMARANG
MARU
Class

Macassar Maru
(revised 6/1/16)
Cheribon Maru
(posted 1/1/2014)
Samarang Maru
(posted 4/1/2014)

HAGUE
MARU
Class

Hague Maru
(posted 2/1/2014)
Havre Maru
(revised 6/1/16)
Havana Maru
(revised 4/1/2014)

SYDNEY
MARU
Class

Sydney Maru
(revised 12/1/2013)

Brisbane Maru
(revised 6/1/2014)
Melbourne Maru
(revised 4/1/2014)

HAWAII
MARU
Class

Africa Maru
(posted 12/1/2013)
Hawaii Maru
(posted 1/1/2014)
LONDON
MARU
Class

London Maru
(posted 3/1/2014)

NAGOYA
MARU
Class

Johore Maru
(posted 6/1/2014)

KURETAKE
MARU
Class

Kuretake Maru
(posted 6/1/2014)

CEYLON
MARU
Class

Ceylon Maru
(posted 7/1/2014)

COLUMBIA
MARU
Class

Columbia Maru
(posted 8/1/2014)
Olympia Maru
(posted 8/1/2014)

INDUS
MARU
Class

Surabaya Maru
(posted 8/1/2014)

DELAGOA
MARU
Class

Delagoa Maru
(posted 9/1/2014)
Durban Maru
(posted 9/1/2014)
Dakar Maru
(posted 9/1/2014)
GENOA
MARU
Class

Genoa Maru
(posted 12/1/2014)
NAGARA
MARU
Class

Nagara Maru
(posted 12/1/2014)
Noto Maru
(revised 6/3/2014)
Nako Maru
(posted 6/1/2015)
NANMAN
(ex-FUJI)
MARU
Class

Bordeaux Maru
(posted 6/1/2015)
Montreal Maru
(revised 1/1/2016)
Nanman (ex-Fuji) Maru
(posted 1/1/2016)
Norfolk Maru
(posted 1/1/2016)
Venice Maru
(posted 1/1/2016)
Wales Maru
(posted 1/1/2016)
MIIKE
MARU
Class

Miike Maru
(revised 2/1/2016)
Aki Maru
(posted 1/1/2016)
Awa Maru
(revised 1/5/2013)
ASOSAN
MARU
Class

Asosan Maru
(posted 2/1/2016)
Asakasan Maru
(posted 2/1/2016)
KANTO
MARU
Class

Kansai Maru
(revised 6/1/16)
KYUSHU
MARU
Class

Kyushu Maru
(posted 2/1/2016)
KAMO
MARU
Class

Atsuta Maru
(posted 2/1/2016)
ASUKA
MARU
Class

Asuka Maru
(posted 3/1/2016)
AKITA
MARU
Class

Akita Maru
(posted 3/1/2016)
Nagano Maru
(posted 7/1/2016)
Tomiura Maru
(posted 1/1/2017)
Yamagata Maru
(posted 2/1/2017)
USSURI
MARU
Class

Ussuri Maru
(posted 3/1/2016)
TOYOKAWA
MARU
(Ex-BANGOR)
Class

Toyokawa Maru
(posted 3/1/2016)

GYOKO
MARU
(cx-DEN OF GLAMIS)
Class

Gyoko Maru
(posted 3/1/2016)
KUROHIME
MARU
(Ex-BOGSTAD)
Class

Kurohime Maru
(posted 4/1/2016)

KENZAN
MARU
(Ex-SHOOTER'S ISLAND)
Class

Kenzan Maru
(posted 4/1/2016)

SHIRAHA
MARU
(ex-VALVERDA)
Class

Shiraha Maru
(posted 4/1/2016)
Tatsuha Maru
(posted 6/1/2016)
KINUGASA
MARU
Class

Kashii Maru(posted 4/1/2016)

SAKITO
MARU
Class

Sakito Maru
(posted 6/1/16)
Sagami Maru
(posted 12/1/2016)
Sasako Maru (posted 1/1/2017)
MAYA
MARU
Class

Ikoma Maru
(revised 12/1/2014)
Maya Maru
(revised 6/1/16)

AKAGISAN
MARU
Class

Akagisan Maru
(posted 7/1/2016)
GINYO
MARU
Class

Ginyo Maru
(posted 7/1/2016)
SHANGHAI
MARU
Class

Hankow Maru
(revised 11/1/2014)
Sydney Maru
(posted 7/1/2016)
Tasmania Maru
(posted 1/1/2017)
SHINSHU
MARU Class

Shinshu Maru
(posted 7/1/2016)
Kozan Maru
(posted 12/1/2016)
TOYOOKA
MARU
Class

Lima Maru
(posted 8/1/2016)
Tokiwa Maru
(posted 1/1/2017)
Toyama Maru
(posted 2/1/2017)
Tsuruga Maru
(posted 3/1/2017)
Tsuyama Maru
(posted 7/1/2017)
OSAKA
MARU
Class

Moji Maru
(revised 11/1/2016)
CHOYO
MARU
Class

Oyo Maru
(posted 2/1/2014)
Biyo Maru
(posted 8/1/2016)
Hayo Maru
(posted 12/1/2016)
Reiyo Maru
(posted 12/1/2016)
ARGUN
MARU
Class

Argun Maru
(posted 8/1/2016)
ANYO
MARU
Class

Anyo Maru
(posted 8/1/2016)
TSUSHIMA
MARU
Class

Tsushima Maru
(posted 9/1/2016)
HORAISAN
MARU
Class

Hoeisan Maru
(posted 9/1/2016)
Kaisho Maru
(posted 7/1/2016)
Tempei Maru
(posted 10/1/2016)
KOYO
MARU
Class

Koyo Maru
(posted 9/1/2016)
TOYOHASHI
MARU
Class

Tajima Maru
(posted 9/1/2016)
Toba Maru
(posted 12/1/2016)
Toyohashi Maru
(posted 1/1/2017)
HINKO
MARU
Class

Hinko Maru
(posted 9/1/2016)
SHINGO
MARU
Class

Shinsei Maru
(posted 9/1/2016)
RYUNAN
MARU
Class

Ryunan Maru
(posted 9/1/2016)
Tonegawa Maru
(posted 3/1/2017)
TOKOSHIMA
MARU
Class

Tottori Maru
(posted 8/1/2014)
RISSHUN
MARU
Class

Risshun Maru
(posted 9/1/2016)
WAIHORA
MARU
Class

Tairyu Maru
(posted 9/1/2016)
CHOJUN
MARU
Class

Chojun Maru
(posted 9/1/2016)
ISUZU
MARU
Class

Isuzu Maru
(posted 10/1/2016)
Taga Maru
(revised 1/1/2017)

KIZAN
MARU
Class

Kizan Maru
(posted 10/1/2016)
CHOJO
MARU
Class

Chojo Maru
(posted 10/1/2016)
KOWA
MARU
Class

Kowa Maru
(posted 10/1/2016)

SHINKO
MARU
Class

Tamagawa Maru
(posted 10/1/2016)
Yamatsuki Maru
(posted 11/1/2016)

SHINRYU
MARU
Class

Dover Maru
(posted 10/1/2016)
Gozan Maru
(posted 11/1/2016)
Shinryu Maru
(posted 2/1/2017)
Yakumo Maru
(posted 3/1/2017)

SHOKYU
MARU
Class

Shokyu Maru
(posted 10/1/2016)

SHUNKO
MARU
Class

Shunko Maru
(revised 12/1/2016)
Matsukawa Maru
(posted 11/1/2016)
Momokawa Maru
(posted 2/1/2017)

KAIHEI MARU Class

Kenkon_Maru
(posted 2/1/2017)
KOYASAN MARU Class

Kuramasan Maru
(posted 11/1/2016)
DAIREN MARU Class

Dairen Maru
(posted 5/1/2017)
Hoten Maru
(posted 5/1/2017)
Tsingtao Maru
(posted 5/1/2017)
KACHOSAN
MARU
Class

Kachosan Maru
(posted 3/1/2017)
Katsuragisan Maru (revised 4/1/2017)

ROKKO
MARU
Class

Aso Maru
(revised 12/1/2014)
Rokko Maru (posted 4/1/2017)
RYOKAI
MARU
Class

Ryokai Maru (posted 4/1/2017)

RYUYO
MARU
Class

Ryuyo Maru (posted 4/1/2017)

SHINTEN
MARU
Class

Shinten Maru
(posted 5/1/2017)
TAKEKAWA
MARU
Class

Takekawa Maru
(posted 5/1/2017)
Umekawa Maru
(posted 6/1/2017)
TOSAN
MARU
Class

Tosan Maru
(posted 2/1/2016)
HAKONE MARU
Class

Hakone Maru
(revised 6/1/16)
Haruna Maru
(posted 5/1/16)

HIE
MARU
Class

Hie Maru
(posted 5/1/16)
MORIOKA
MARU
Class

Morioka Maru
(revised 9/1/2016)
ODATSUKI
MARU
Class

Odatsuki Maru
(posted 5/1/2017)
UNKAI MARU No. 6 Class

Unkai Maru No. 6
(posted 3/1/2016)
IWATESAN
MARU
Class

Ibukisan (Dainichi) Maru
(posted 5/1/2017)

YAWATA
MARU
Class

Yawata Maru
(posted 5/1/2017)
SHINFUKU
MARU
Class

Shinfuku Maru
(posted 2/1/17)
TAIYEI
MARU
Class

Hakusan Maru.
(posted 2/1/17)
KOKURYU
MARU
Class

Kokuryu Maru
(posted 6/1/2017)
Oryoku Maru
(posted 7/1/2017)
FUKUJU
MARU
Class

Fukuju Maru
(posted 6/1/2017)
YAMABIKO
MARU
Class

Yamaura Maru
(posted 5/1/2017)
YUKIKAWA
MARU
Class

Tsukikawa Maru
(posted 5/1/2017)
MYOKEN
MARU
Class

Myoho Maru
(posted 5/1/2017)
GENKAI
MARU
Class

Genkai Maru
(posted 6/1/2017)

SEKINO
MARU
Class

Sekino Maru
(posted 7/1/2017)
KOSHU
MARU
Class

Koshu Maru
(posted 7/1/2017)

CHOWA
MARU
Class

Nichiun Maru
(posted 7/1/2017)
Toko Maru
(posted 7/1/2017)


TENRYU
MARU
Class

Sanko Maru
(posted 7/1/2017)

MIKAGE
MARU
Class

Mikage Maru
(posted 7/1/2017)

MIKAGE
MARU
No. 20
Class

Shoho Maru
(posted 6/1/2017)

TOEI MARU Class

Toho Maru
(revised 8/1/2017)

ANSHU
MARU
Class

Koshu (Teishu) Maru
(posted 7/1/2017)
TAIBUN
MARU
Class

Taibun (Etna) Maru
(posted 8/1/2017)
AYAHA
MARU
Class

Koyu Maru
(posted 9/1/2017)
SHINAI
MARU
Class

Shinai Maru
(posted 8/1/2017)
KYOKUSEI
MARU
Class

Kyokusei Maru
(posted 8/1/2017)
TAIMEI
MARU
Class

Taimei Maru
(posted 8/1/2017)
KENBU
MARU
Class

Kenbu Maru
(posted 8/1/2017)
PEKING
MARU
Class

Nanking_ Maru
(posted 9/1/2017)
SHUNSEI
MARU
Class

Shunsei_ Maru
(posted 9/1/2017)
MIYO
MARU
Class

Miyo Maru
(posted 9/1/2017)
ENJU
MARU
Class

Enju Maru
(posted 9/1/2017)
ANNAN
MARU
Class

Annan Maru
(posted 9/1/2017)
Chosen Maru
(posted 9/1/2017)
KOCHI
MARU
Class

Kochi Maru
(posted 9/1/2017)
SHUNSHO
MARU
Class

Shunsho Maru
(posted 9/1/2017)
TENKAI
MARU
Class

Tenkai Maru
(posted 9/1/2017)
TOUN
MARU
Class

Toun Maru
TAIKO
MARU
Class

Taiko Maru
KINKASAN
MARU
Class

Kinkasan Maru
TYPE 1A
STANDARD
CARGO
SHIP

Chuka Maru
(posted 7/1/2016)
Getsuyo Maru
(posted 7/1/2017)
Djokja Maru
(posted 8/1/2017)
Kenwa Maru
(posted 8/1/2017)
Mitsuki Maru
(posted 8/1/2017)
Nichiyo Maru
(posted 8/1/2017)
Oigawa Maru
(posted 8/1/2017)
Yamamiya Maru
Yozan Maru
PEACETIME
TYPE 1B
STANDARD
CARGO
SHIP

Koho Maru
(posted 2/1/17)
TYPE 1C
STANDARD
CARGO
SHIP

Aiyo Maru
Shinkoku Maru
Shozan Maru
PEACETIME
TYPE D
STANDARD
CARGO
SHIP

Chinzei Maru
Hozugawa Maru
PEACETIME
TYPE 1E
STANDARD
CARGO
SHIP

Nagatsu Maru
Shoyu Maru

TYPE 1K
STANDARD
CARGO
SHIP

Daigo Maru
WARTIME
TYPE 1B
STANDARD
CARGO
SHIP

Daikei Maru
Mino Maru
Shiranesan Maru
Shiroganesan Maru
WARTIME
TYPE 2 A
STANDARD
CARGO
SHIP

Surakaruta Maru
WARTIME
TYPE 2 D
STANDARD
CARGO
SHIP

Aizan Maru
BRITISH
WW 1
B CLASS
STANDARD
CARGO
SHIP

Jinzan Maru
Kusuyama Maru
Miyadono Maru
Momoyama Maru
Uchide Maru
Yamagiku Maru
BRITISH
WW 1
C CLASS
STANDARD
CARGO
SHIP

KenkokuMaru
Kiriha Maru
Momoha Maru
Satsuma Maru
Yasukuni Maru
BRITISH
WW 1
F1 CLASS
STANDARD
CARGO
SHIP

Yuki Maru
BRITISH
WW 1
G CLASS
STANDARD
CARGO
SHIP

Hakushika Maru
BRITISH
WW 1
N CLASS
STANDARD
CARGO
SHIP

Nikkyu Maru


Captured Vessels in Japanese Service as Auxiliary Transports
(Ex-Countries link to specifications summaries)

Ex-American Vessel

Kachidoki Maru (ex-President Harrison)
(revised 6/1/16)
Ex-British Vessels

Gyozan (ex-Hosang)
(posted 7/1/2016)
Gyoten Maru (ex-Empire Pagoda)
(posted 6/1/2017)
Gyoku Maru (ex-Empire Dragon)
Kensei Maru (ex-Hinsang)
Ex-Chinese Vessel

Yamayuri Maru (ex-Shou Sing)
Ex-Greek Vessel

Wakatsu Maru (ex-Andreas)


Bibliography of Sources

About the Authors

Bob Hackett is a military historian and researcher. Retired from the United States Air Force and later from the aerospace industry, he resides in Florida.

Sander Kingsepp, a native of Estonia, is also a military historian and researcher. A talented linguist, Sander's translations of Japanese source materials have greatly enhanced these TROMs.

Erich Muehlthaler is a maritime historian and researcher. He resides in Germany.

Gilbert Casse is a maritime historian and researcher. Retired from the aerospace industry and later from managing Le Mans racing cars and drivers, his avocation is ship modeling, maritime photos and paintings. He resides on the SW coast of France.

Questions to the authors concerning these TROMs should be posted on the Discussion and Questions board.

Discussion & Questions