Japanese Submarine I-155
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''I-55'', later renumbered , was an Imperial Japanese Navy
cruiser submarine A cruiser submarine was a very large submarine designed to remain at sea for extended periods in areas distant from base facilities. Their role was analogous to surface cruisers, cruising distant waters, commerce raiding, and scouting for the batt ...
of the KD3A sub-class commissioned in 1927. Early in World War II, she supported Japanese forces in the
invasion of Malaya The Malayan campaign, referred to by Japanese sources as the , was a military campaign fought by Allied and Axis forces in Malaya, from 8 December 1941 – 15 February 1942 during the Second World War. It was dominated by land battles betwee ...
and the
Dutch East Indies campaign The Dutch East Indies campaign of 1941–1942 was the conquest of the Dutch East Indies (present-day Indonesia) by forces from the Empire of Japan in the early days of the Pacific campaign of World War II. Forces from the Allies attempted u ...
before assuming training duties in
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
, interrupted briefly in 1943 by her participation in the Aleutian Islands campaign. She became a '' kaiten'' manned
suicide attack A suicide attack is any violent Strike (attack), attack, usually entailing the attacker detonating an explosive, where the attacker has suicide, accepted their own death as a direct result of the attacking method used. Suicide attacks have oc ...
torpedo carrier in 1945 before surrendering at the end of the war. She was scuttled in 1946.


Background

Following World War I, the Imperial Japanese Navy re-evaluated the use of
submarine warfare Submarine warfare is one of the four divisions of underwater warfare, the others being anti-submarine warfare, mine warfare and mine countermeasures. Submarine warfare consists primarily of diesel and nuclear submarines using torpedoes, missi ...
as an element of fleet strategy due to the successful deployment of long-range
cruiser submarine A cruiser submarine was a very large submarine designed to remain at sea for extended periods in areas distant from base facilities. Their role was analogous to surface cruisers, cruising distant waters, commerce raiding, and scouting for the batt ...
s for commerce raiding by the Imperial German Navy. Japanese strategists came to realize possibilities for using submarines for long-range reconnaissance and in a war of attrition against an enemy fleet approaching
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
.Peatty, pp. 212–14 The Japanese already had built two large, long-range
submarine A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
s — and ''
I-52 I52 or I-52 may refer to: * , a destroyer in service with the Royal Navy from 1940 to 1942 * , several ships of the Imperial Japanese Navy * ''I-52''-class submarine, of the Imperial Japanese Navy * I-52 Mine layer vehicle The I-52 is a mine-la ...
'' — under the Eight-six fleet program as
prototype A prototype is an early sample, model, or release of a product built to test a concept or process. It is a term used in a variety of contexts, including semantics, design, electronics, and Software prototyping, software programming. A prototyp ...
s, but the arrival on 20 June 1919 of seven German U-boats Japan received as war reparations after the end of World War I led to a complete re-design. The Japanese quickly hired hundreds of German submarine engineers, technicians, and former U-boat officers unemployed after the defeat of the
German Empire The German Empire (),Herbert Tuttle wrote in September 1881 that the term "Reich" does not literally connote an empire as has been commonly assumed by English-speaking people. The term literally denotes an empire – particularly a hereditary ...
in World War I and brought them to Japan under five-year contracts. The United States Navy′s Office of Naval Intelligence estimated that some 800 German advisors had gone to Japan by the end of 1920. The Japanese also sent delegations to Germany, and were active in purchasing many patents related to submarine design and construction.Boyd, pp. 17–18


Design

The four ''Kaidai'' Type 3A submarines were the first mass-produced Japanese fleet submarines. Based largely on the lone ''Kaidai'' Type II submarine (''I-52''), their design was also influenced by the largest of the German submarines in Japanese hands, .Stille, p. 4 Compared with ''I-52'', they a strengthened
double hull A double hull is a ship hull design and construction method where the bottom and sides of the ship have two complete layers of watertight hull surface: one outer layer forming the normal hull of the ship, and a second inner hull which is some dis ...
. The
hull Hull may refer to: Structures * Chassis, of an armored fighting vehicle * Fuselage, of an aircraft * Hull (botany), the outer covering of seeds * Hull (watercraft), the body or frame of a ship * Submarine hull Mathematics * Affine hull, in affi ...
had almost the same outer dimensions as that of ''I-52'', but the increased thickness of the inner hull permitted a diving depth of . The internal volume was slightly increased over that of ''I-52'' by making the hull slightly trapezoidal in cross-section at the expense of 300 tons of additional
displacement Displacement may refer to: Physical sciences Mathematics and Physics *Displacement (geometry), is the difference between the final and initial position of a point trajectory (for instance, the center of mass of a moving object). The actual path ...
. External differences from ''I-52'' included an anti-submarine net
cutter Cutter may refer to: Tools * Bolt cutter * Box cutter, aka Stanley knife, a form of utility knife * Cigar cutter * Cookie cutter * Glass cutter * Meat cutter * Milling cutter * Paper cutter * Side cutter * Cutter, a type of hydraulic rescue to ...
on the bow, as well as an O-ring for towing purposes. The ''Kaidai'' Type 3A submarines displaced surfaced and submerged. The submarines were long and had a
beam Beam may refer to: Streams of particles or energy *Light beam, or beam of light, a directional projection of light energy **Laser beam *Particle beam, a stream of charged or neutral particles **Charged particle beam, a spatially localized grou ...
of and a draft of . They had a complement of 60 officers and crewmen.Carpenter & Polmar, p. 93 Sulzer was retained as the manufacturer for the diesel engines, which had a slightly improved performance over the engines in ''I-52''. For surface running, the submarines were powered by two diesel engines, each driving one propeller shaft. When submerged, each propeller was driven by a electric motor. The submarines could reach on the surface and submerged. On the surface, the KD3As had a range of at ; submerged, they had a range of at .Chesneau, p. 198 The submarines had eight internal torpedo tubes, six in the bow and two in the
stern The stern is the back or aft-most part of a ship or boat, technically defined as the area built up over the sternpost, extending upwards from the counter rail to the taffrail. The stern lies opposite the bow, the foremost part of a ship. Ori ...
. They carried one reload for each tube for a total of 16 torpedoes. They were had one deck gun.Bagnasco, p. 183


Construction and commissioning

Built by the Kure Naval Arsenal, ''I-55'' was laid down on 1 April 1924 as .I-155 ijnsubsite.com June 10, 2018 Accessed 22 January 2022
/ref> While under construction, she was renamed ''I-55'' on 1 November 1924. She was launched on 2 September 1925 and completed and commissioned on 5 September 1927.


Service history


Pre-World War II

On the day she was commissioned, ''I-55'' was assigned to the Kure Naval District and assigned to Submarine Division 18 in Submarine
Squadron Squadron may refer to: * Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies * Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, de ...
2 in the
2nd Fleet The United States Second Fleet is a numbered fleet in the United States Navy responsible for the East Coast and North Atlantic Ocean. The Fleet was established following World War II. In September 2011, Second Fleet was deactivated in view ...
, a component of the Combined Fleet. During a training exercise on 11 July 1929 in which she simulated a submerged torpedo attack against the heavy cruiser , she accidentally collided with ''Kinugasa'' off
Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...
southwest of Ōdate Shima
lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mar ...
, sustaining substantial damage to her bow plating. On 1 December 1930, Submarine Division 18 was reassigned to the Kure Defense Squadron in the Kure Naval District. Submarine Division 18 began a second assignment to Submarine Squadron 2 in the 2nd Fleet on 1 December 1931. At 13:48 on 10 February 1932, ''I-55''′s
sister ship A sister ship is a ship of the same class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They often share a ...
'' I-54'' suffered a steering failure off
Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...
south of Odate Shima
lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mar ...
while Submarine Division 18 was on maneuvers during fleet exercises.I-154 ijnsubsite.com October 11, 2018 Accessed 20 January 2022
/ref> ''I-54'' reduced speed to , but nonetheless accidentally rammed ''I-55''. ''I-54'' suffered bow damage and one of her compartments flooded, but ''I-55'' sustained only minor damage. Between February 1932 and February 1934, Submarine Division 18 was active, concluding duty in Submarine Squadron 2 in the 2nd Fleet with its reassignment to the Kure Defense Division in the Kure Naval District on 15 November 1933 and then to the Kure Defense Squadron in the Kure Naval District on 11 December 1933 before it began a third tour of duty in Submarine Squadron 2 in the 2nd Fleet on 1 February 1934. ''I-55''′s activities during this period are unclear: She may have been in reserve from the day of her collision with ''I-54'' on 10 February 1932 until 20 February 1934, or she may have remained active in her division. In the latter case, she got underway from Sasebo on 29 June 1933 with the other submarines of her squadron ('' I-53'' and ''I-54'' of her division and Submarine Division 19′s ''
I-56 Japanese submarine ''I-56'' may refer to one of the following submarines of the Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was ...
'', '' I-57'' and '' I-58'') for a training cruise off
China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and Mako in the
Pescadores Islands The Penghu (, Hokkien POJ: ''Phîⁿ-ô͘''  or ''Phêⁿ-ô͘'' ) or Pescadores Islands are an archipelago of 90 islands and islets in the Taiwan Strait, located approximately west from the main island of Taiwan, covering an area ...
, which the submarines concluded with their arrival at Takao,
Formosa Taiwan, officially the Republic of China (ROC), is an island country located in East Asia. The main island of Taiwan, formerly known in the Western political circles, press and literature as Formosa, makes up 99% of the land area of the territorie ...
, on 5 July 1933;I-153 ijnsubsite.com September 19, 2018 Accessed 15 January 2022
/ref>
/ref>
/ref>
/ref> departing Takao on 13 July 1933 with the other five submarines and again training in Chinese waters before arriving in Tokyo Bay on 21 August 1933; and taking part with the other five submarines in a fleet review at Yokohama, Japan, on 25 August 1933. Submarine Division 18 was reassigned to the Kure Defense Division in the Kure Naval District on 15 November 1933 and then to the Kure Defense Squadron in the Kure Naval District on 11 December 1933 before it began a third tour of duty in Submarine Squadron 2 in the 2nd Fleet on 1 February 1934. On 7 February 1935 ''I-55'' got underway from Sasebo along with the other eight submarines of Submarine Squadron 2 — ''I-53'', ''I-54'', ''
I-59 Interstate 59 (I-59) is an Interstate Highway located in the southeastern United States. It is a north–south route that spans from a junction with I-10 and I-12 at Slidell, Louisiana, to a junction with I-24 near Wildwood, Georgia. ...
'', , , , and — for a training cruise in the Kuril Islands.I-159 ijnsubsite.com October 27, 2018 Accessed 2 January 2021
/ref>
/ref>
/ref>
/ref> The cruise concluded with their arrival at Sukumo Bay on 25 February 1935. The nine submarines departed Sasebo on 29 March 1935 to train in Chinese waters, returning to Sasebo on . Submarine Division 18 was reassigned to Submarine Squadron 1 in the 1st Fleet, a component of the Combined Fleet, on 15 November 1935. While the division was on maneuvers during fleet exercises off Kyushu on 10 May 1936, ''I-55'' collided with her sister ship ''I-53'', sustaining minor damage to her bow plating. On 23 July 1936 ''I-55'' suffered more extensive damage when the Combined Fleet was caught in a typhoon off Beppu, Kyushu, during fleet exercises and she ran aground in Terajima Channel, suffering severe damage to her hull plating. After her
superstructure A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstruct ...
was partially dismantled, she was refloated and towed to Kure, Japan, on 31 July 1936, where she was
drydock A dry dock (sometimes drydock or dry-dock) is a narrow basin or vessel that can be flooded to allow a load to be floated in, then drained to allow that load to come to rest on a dry platform. Dry docks are used for the construction, maintenance, ...
ed for repairs. She was placed in reserve that day. All of Submarine Division 18 followed her into reserve at Kure on 20 August 1936. Submarine Division 18 returned to active service on 1 October 1936, when it began another tour of duty in Submarine Squadron 1 in the 1st Fleet, and ''I-55'' returned to active service in the division on 1 December 1936. The division was reassigned to Submarine Squadron 4 in the 1st Fleet on 15 November 1939. On 11 October 1940, ''I-55'' was one of 98 Imperial Japanese Navy ships that gathered along with more than 500 aircraft on the Japanese coast at
Yokohama Bay is the second-largest city in Japan by population and the most populous municipality of Japan. It is the capital city and the most populous city in Kanagawa Prefecture, with a 2020 population of 3.8 million. It lies on Tokyo Bay, south of T ...
for an Imperial fleet review — the largest fleet review in Japanese history — in honor of the 2,600th anniversary of the enthronement of the Emperor Jimmu, Japan's legendary first emperor. Submarine Squadron 4 was assigned directly to the Combined Fleet on 15 November 1940. As the Japanese armed forces mobilized for an offensive against
Allied An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
forces that would begin the Pacific campaign of World War II, ''I-53'', ''I-54'', and ''I-55'' departed Kure, Japan, on 20 November 1941 bound for Samah on China′s Hainan Island, which they reached on 26 November 1941. All three submarines departed Samah on 1 December 1941 to take up positions to support the offensive. Tasked with supporting Operation E, the Japanese invasion of
British Malaya The term "British Malaya" (; ms, Tanah Melayu British) loosely describes a set of states on the Malay Peninsula and the island of Singapore that were brought under British hegemony or control between the late 18th and the mid-20th century. U ...
, ''I-55'' formed a patrol line in the South China Sea east of Kuantan, British Malaya, with ''I-53'' and ''I-54'' on 7 December 1941.


World War II


First war patrol

Hostilities began in East Asia on 8 December 1941 (7 December across the
International Date Line The International Date Line (IDL) is an internationally accepted demarcation on the surface of Earth, running between the South and North Poles and serving as the boundary between one calendar day and the next. It passes through the Pacific O ...
in Hawaii, where Japan began the war with its attack on Pearl Harbor), and on 9 and 10 December ''I-55'' participated in attempts to intercept Force Z, a British Royal Navy task force centered around the
battleship A battleship is a large armored warship with a main battery consisting of large caliber guns. It dominated naval warfare in the late 19th and early 20th centuries. The term ''battleship'' came into use in the late 1880s to describe a type of ...
and
battlecruiser The battlecruiser (also written as battle cruiser or battle-cruiser) was a type of capital ship of the first half of the 20th century. These were similar in displacement, armament and cost to battleships, but differed in form and balance of attr ...
, before it could threaten Japanese invasion convoys. Imperial Japanese Navy torpedo planes sank the two capital ships in the South China Sea off the Malayan Peninsula on 10 December 1941 before the submarines could engage them. Early on the morning of 14 December 1941, the Dutch submarine detected faint propeller noises, apparently those of a Japanese submarine, and at 11:00 sighted a periscope to
starboard Port and starboard are nautical terms for watercraft and aircraft, referring respectively to the left and right sides of the vessel, when aboard and facing the bow (front). Vessels with bilateral symmetry have left and right halves which are ...
. ''K XII'' steered to ram the Japanese submarine and had closed to of where lookouts had last seen the periscope when the periscope reappeared to port. ''K XII'' abandoned the ramming attempt and broke contact by zigzagging away. The submarine she attempted to ram probably was ''I-54'', ''I-55'', or ''I-56''. ''I-55'' concluded her patrol with her arrival at Cam Ranh Bay in Japanese-occupied French Indochina on 20 December 1941.


Second war patrol

''I-55'' departed Cam Ranh Bay on 29 December 1941 to begin her second war patrol. She patrolled the
Bangka Strait Bangka Strait is the strait that separates the island of Sumatra from Bangka Island ( id, Pulau Bangka) in the Java Sea, Indonesia. The strait is about long, with a width varying from about to . See also * Japanese cruiser Ashigara * List of st ...
off
Sumatra Sumatra is one of the Sunda Islands of western Indonesia. It is the largest island that is fully within Indonesian territory, as well as the sixth-largest island in the world at 473,481 km2 (182,812 mi.2), not including adjacent i ...
without incident and returned to Cam Ranh Bay on 14 January 1942.


Third war patrol

''I-55'' departed Cam Ranh Bay for her third war patrol on 31 January 1942, assigned a patrol area at the southern entrance to
Lombok Strait The Lombok Strait ( id, Selat Lombok), is a strait connecting the Java Sea to the Indian Ocean, and is located between the islands of Bali and Lombok in Indonesia. The Gili Islands are on the Lombok side. Its narrowest point is at its southern o ...
between
Bali Bali () is a province of Indonesia and the westernmost of the Lesser Sunda Islands. East of Java and west of Lombok, the province includes the island of Bali and a few smaller neighbouring islands, notably Nusa Penida, Nusa Lembongan, and Nu ...
and Lombok as a part of the A Group. After refueling at an advance base in the Anambas Islands on 2 February 1942, she proceeded to her patrol area. ''I-55'' often is credited with sinking the Dutch 1,937- gross register ton steamer on 4 February 1942, but ''Van Lansberge'' actually was sunk in an air attack. After the Japanese submarine expended all of her torpedoes in an attack on an
Allied An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
convoy, ''I-53'', ''I-54'', and ''I-55'' received orders on 5 February 1942 to patrol in ''Ro-34''ʼs area. On 7 February 1942, ''I-55'' encountered the 4,519-gross register ton Dutch
passenger ship A passenger ship is a merchant ship whose primary function is to carry passengers on the sea. The category does not include cargo vessels which have accommodations for limited numbers of passengers, such as the ubiquitous twelve-passenger freig ...
''Van Cloon'' in the
Java Sea The Java Sea ( id, Laut Jawa, jv, Segara Jawa) is an extensive shallow sea on the Sunda Shelf, between the Indonesian islands of Borneo to the north, Java to the south, Sumatra to the west, and Sulawesi to the east. Karimata Strait to its nort ...
at and engaged her with gunfire, forcing her to beach herself on the south shore of
Bawean Island Bawean ( id, Pulau Bawean) is an island of Indonesia located approximately north of Surabaya in the Java Sea, off the coast of Java. It is administered by Gresik Regency of East Java province. It is approximately in diameter and is circumn ...
in a sinking condition. The United States Navy patrol vessel arrived on the scene, rescued 187 people from ''Van Cloon'', and opened fire on ''I-55'' when ''I-55'' attempted to surface nearby. ''I-55'' dived and later was attacked by an Allied PBY Catalina
flying boat A flying boat is a type of fixed-winged seaplane with a hull, allowing it to land on water. It differs from a floatplane in that a flying boat's fuselage is purpose-designed for floatation and contains a hull, while floatplanes rely on fusela ...
. Japanese forces invaded Sumatra and Java on 8 February 1942, and at 21:02 on the evening of 13 February ''I-55'' hit the British 4,799-gross register ton armed steamer with two torpedoes in the
Java Sea The Java Sea ( id, Laut Jawa, jv, Segara Jawa) is an extensive shallow sea on the Sunda Shelf, between the Indonesian islands of Borneo to the north, Java to the south, Sumatra to the west, and Sulawesi to the east. Karimata Strait to its nort ...
. ''Derrymore'', which was on a voyage from Singapore to
Batavia Batavia may refer to: Historical places * Batavia (region), a land inhabited by the Batavian people during the Roman Empire, today part of the Netherlands * Batavia, Dutch East Indies, present-day Jakarta, the former capital of the Dutch East In ...
, Java, with a 7,000-ton cargo of military stores including ammunition and six crated Hawker Hurricane Mark II fighters and carrying 209
Royal Australian Air Force "Through Adversity to the Stars" , colours = , colours_label = , march = , mascot = , anniversaries = RAAF Anniversary Commemoration ...
(RAAF) personnel, sank 90 minutes later about north of Jason Rock and southwest of Noordwachter Island in the Thousand Islands at with the loss of nine RAAF personnel. The Royal Australian Navy
corvette A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the slo ...
quickly rescued ''Derrymore''′s entire crew of 36 (including four gunners) and the other 200 RAAF personnel aboard. On 17 February 1942, ''I-55'' and ''I-56'' received orders to proceed to Staring Bay on the coast of Celebes. On 18 February 1942, ''I-55'' reported sinking an Allied merchant ship with gunfire, although her likely target, the 5,804-gross register ton Norwegian
tanker Tanker may refer to: Transportation * Tanker, a tank crewman (US) * Tanker (ship), a ship designed to carry bulk liquids ** Chemical tanker, a type of tanker designed to transport chemicals in bulk ** Oil tanker, also known as a petroleum ta ...
, actually suffered no damage. ''I-55'' ended her patrol with her arrival at Staring Bay on 21 February 1942.


March 1942–May 1943

Submarine Squadron 4 was disbanded on 10 March 1942, and Submarine Division 18 was reassigned to the Kure Naval District and ordered back to Japanese home waters. ''I-53'', ''I-54'', and ''I-55'' departed Staring Bay on 16 March and arrived at Kure, Japan, on 25 March 1942, where they assumed duties as training ships. ''I-55'' was renumbered on 20 May 1942. Sources differ on whether she remained assigned to Submarine Division 18 throughout this period and until 31 January 1944; some claim she was assigned to the Kure Guard Unit in the Kure Naval District on 10 March 1942 and did not return to Submarine Division 18 in the Kure Naval District until 1 April 1943, then was reassigned to Submarine Division 33 in the Kure Submarine Squadron in the Kure Naval District on 20 April 1943.


Aleutian Islands campaign

After her return to Japan, ''I-155''ʼs operations were uneventful until 21 May 1943, when the Japanese
Imperial General Headquarters The was part of the Supreme War Council and was established in 1893 to coordinate efforts between the Imperial Japanese Army and Imperial Japanese Navy during wartime. In terms of function, it was approximately equivalent to the United States ...
decided to bring the Aleutian Islands campaign to and end by evacuating Japanese forces from Kiska in the Aleutian Islands. Ordered to participate in the evacuation, ''I-155'' departed Kure on 22 May 1943, called at Yokosuka, Japan, on 23 May, and then proceeded to Paramushiro in the northern Kuril Islands, being attached temporarily to the Kiska Evacuation Force as a unit of Submarine Squadron 1 in the Northern District Force of the
5th Fleet The Fifth Fleet is a numbered fleet of the United States Navy. It has been responsible for naval forces in the Persian Gulf, Red Sea, Arabian Sea, and parts of the Indian Ocean since 1995 after a 48-year hiatus. It shares a commander and headq ...
on 29 May 1943 along with the submarines , , , , , , , , , , and . She arrived at Paramushiro on 2 June 1943, and departed on 4 June carrying supplies for the forces in Kiska, but suffered damage in heavy seas and was forced to return to Paramushiro, which she reached on 7 June 1943. On 14 June she departed Paramushiro and headed for Kure for repairs. She arrived at Kure on 20 June 1943.


June 1943–April 1945

After returning to Kure from her abortive Aleutians service and completing repairs, ''I-155'' resumed duties as a training ship. Sources provide a confusing depiction of her assignment history; some assert that she was assigned to Submarine Division 18 in the Kure Naval District continually until 31 January 1944 an that the division was assigned to the Kure Submarine Squadron in the Kure Naval District on 1 December 1943, while others claim that she was reassigned as part of Submarine Division 33 to the Kure Guard Unit in the Kure Naval District on 28 July 1943 and then to Submarine Division 18 in the Kure Submarine Squadron on 1 December 1943. On 5 January 1944, she took part in tests of a new submarine camouflage pattern in the Iyo Nada in the
Seto Inland Sea The , sometimes shortened to the Inland Sea, is the body of water separating Honshū, Shikoku, and Kyūshū, three of the four main islands of Japan. It serves as a waterway connecting the Pacific Ocean to the Sea of Japan. It connects to Osaka ...
for the Submarine School, painted in a light gray scheme based on that of the German submarine , which the Imperial Japanese Navy had purchased from Germany in 1943 and renamed ''Ro-500''. On 31 January 1944, ''I-155'' was reassigned to Submarine Division 19 of the Kure Submarine Squadron and laid up without a crew. From 23 to 25 February 1944, however, she tested another camouflage scheme for the Naval Submarine School, painted bluish-gray and black. While submerged at 11:50 on 5 May 1944, she suffered damage in a collision with the hybrid oiler- seaplane carrier off Kabuto-jima in
Hiroshima Bay is a bay in the Inland Sea, Japan.Nussbaum, Louis-Frédéric. (2005). "Hiroshima Wan" in . Administratively, the bay is divided between Hiroshima and Yamaguchi Prefectures. The bay's shore is a Ria. Its surface area is about 1,000 km², ...
at longitude 140 degrees East, and garbled Japanese message intercepted, decrypted, and translated by Allied
signals intelligence Signals intelligence (SIGINT) is intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication ( ...
indicated that her damage included a hole measuring .


April 1945–November 1945

On 20 April 1945, ''I-155'' and the submarine were reassigned to Submarine Division 33 in the Kure Submarine Squadron in the Kure Naval District, and by late April 1945 ''I-155'' had been converted to transport '' kaiten'' manned
suicide attack A suicide attack is any violent Strike (attack), attack, usually entailing the attacker detonating an explosive, where the attacker has suicide, accepted their own death as a direct result of the attacking method used. Suicide attacks have oc ...
torpedoes to bases on Shikoku, with her deck gun replaced by fittings for two ''kaiten''. On 20 July 1945, she was placed in reserve and anchored near the Kure Submarine School. In the final days of the war, ''I-155'' was selected for a ''kaiten'' mission. Recommissioned in early August 1945, she was fitted with two ''kaiten'' at the naval base at Otsujima and was scheduled to depart Hirao on 25 August 1945 with the submarine as part of the ''Shinshu-tai'' ("Land of Gods Unit") ''kaiten'' group. Although Emperor
Hirohito Emperor , commonly known in English-speaking countries by his personal name , was the 124th emperor of Japan, ruling from 25 December 1926 until his death in 1989. Hirohito and his wife, Empress Kōjun, had two sons and five daughters; he was ...
announced the
cessation of hostilities A ceasefire (also known as a truce or armistice), also spelled cease fire (the antonym of 'open fire'), is a temporary stoppage of a war in which each side agrees with the other to suspend aggressive actions. Ceasefires may be between state act ...
on 15 August 1945, ''I-155'' and ''I-156'' put to sea from Hirao for the operation on 25 August 1945. The ''kaiten'' mission was cancelled that day and the submarines were recalled. ''I-155'' proceeded to Kure, where she surrendered to the Allies in September 1945. The Japanese removed her from the Navy list on 20 November 1945.


Disposal

''I-155'' was among 17 captured Japanese submarines sunk by gunfire by the Royal Australian Navy
destroyer In naval terminology, a destroyer is a fast, manoeuvrable, long-endurance warship intended to escort larger vessels in a fleet, convoy or battle group and defend them against powerful short range attackers. They were originally developed in ...
and the Royal Indian Navy
sloop-of-war In the 18th century and most of the 19th, a sloop-of-war in the Royal Navy was a warship with a single gun deck that carried up to eighteen guns. The rating system covered all vessels with 20 guns and above; thus, the term ''sloop-of-war'' enc ...
in the Seto Inland Sea between Honshu and Shikoku on 8 May 1946 in
Operation Bottom Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Man ...
.Anonymous, "Jap Submarines Demolition Convoy Caught in Gale", ''Kalgoorlie Miner'', May 14, 1946, p. 3
/ref>


References


Footnotes


Bibliography

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External links


Video: "Sinking of Japanese submarine ''I-155'' - May 1946" on YouTube
{{DEFAULTSORT:I-55 1925 ships Ships built by Kure Naval Arsenal World War II submarines of Japan Kaidai-class submarines Ships of the Aleutian Islands campaign Maritime incidents in 1929 Maritime incidents in 1932 Maritime incidents in 1936 Maritime incidents in June 1943 Maritime incidents in May 1944 Maritime incidents in 1946 Scuttled vessels Shipwrecks in the Pacific Ocean