Chronology of Japanese Submarine Communication Cable Laying Vessels
Chronology of Japanese Submarine Communication Cable Laying Vessels
Okinawa-maru
April 1896 - July 1938 / 2.278 t
Built in the U.K. Laid cables over a distance of 12,594 km. This constituted the foundation of Japan’s submarine communication cable network.
Ogasawara-maru
August 1906 - August 1945 / 1,494 t
The first submarine communication cable laying vessel built in Japan. It was sunk by a submarine when carrying returnees to Japan.
Nanyo-maru
March 1922 - February 1944 / 3,605 t
Designed for laying cables in deep sea. It was sunk by torpedoes off Iriomote Island.
Toyo-maru
June 1938 - July 1945 / 3,760 t
Equipped with a steam turbine main engine and a Voith Schneider propeller. It got stranded on a reef after hitting a mine off Moji.
Tsurishima-maru
December 1941 - March 1968 / 1,160 t
Modified from the Japanese Imperial Navy’s power cable laying vessel with the same name.
Chiyoda-maru
October 1948 - January 1974 / 1,849 t
Laid Japan’s first quadruple-core submarine coaxial cable.
Seto-maru
February 1957 - September 1979 / 218 t
Became the setting for a 1971 movie, Starboard & Port, starred by Hisaya Morishige.
Hatsushio-maru
February 1958 - January 1987 / 25 t
Cable burying pump ship. Small vessel for carrying out small-scale repairs and such near shore.
Amakusa-maru
February 1961 - September 1983 / 359 t
Suitable for work with co-axial submarine cables with repeaters
Tsugaru-maru
June 1969 - March 1991 / 1,960 t
Was equipped with a satellite navigation system and other high precision navigation equipment. Took part in various tests,
Kuroshio-maru
February 1975 - March 2002 / 5,656 t
Was capable of handling coaxial and fiber optic cables. Took part in many overseas projects.
Setouchi-maru
December 1979 - October 1999 / 818 t
Equipped with a trochoidal propeller to match the navigational features in the Seto Inland Sea (currently operating in SE Asian regions as Fugro’s MV Setouchi Surveyor).
Koyo-maru
February 1984 - March 1998 / 1,295 t
Equipped with various automatic systems and capable of high-speed cable laying (currently operating in the Philippines as CS VEGA).
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