Japanese World War II destroyers
Encyclopedia
Japanese World War II destroyers included some of the most formidable of their day. This came as a nasty surprise to the Allies
Allies of World War II
The Allies of World War II were the countries that opposed the Axis powers during the Second World War . Former Axis states contributing to the Allied victory are not considered Allied states...

, who had generally under-estimated Japanese technical capabilities. The Japanese had reassessed their naval needs in the mid-1920s and, placing an emphasis on ship and weapons technology and night fighting expertise, developed a completely new destroyer design. Subsequent development from one destroyer class to the next was not, however, a smooth progression. Aside from the usual changes arising from experience, serious design faults also came to light and naval treaties imposed restrictions. As a result, the early "Special Type" destroyers required significant changes and the specifications of subsequent classes was reduced in one way or another. Naval treaties were later abrogated in 1937 and so destroyer development continued without regard to limits.

Generally speaking, the Imperial Japanese Navy
Imperial Japanese Navy
The Imperial Japanese Navy was the navy of the Empire of Japan from 1869 until 1947, when it was dissolved following Japan's constitutional renunciation of the use of force as a means of settling international disputes...

 (IJN) requirements gave rise to warships that were substantially larger than their European or American equivalents. In the early war years, their advantages were aggressively exploited against the often second rate and poorly coordinated Allied ships stationed in the region (as at the disastrous Battle of the Java Sea
Battle of the Java Sea
The Battle of the Java Sea was a decisive naval battle of the Pacific campaign of World War II, that sealed the fate of the Netherlands East Indies....

). The Japanese did not, however, continue to install new technology, such as radar, to match their opponents, and destroyer numbers were eroded steadily. The Japanese emphasis on fleet destroyers had neglected the need for large numbers of escort vessels to defend critical merchantmen, a need learnt by both the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 and the United States Navy
United States Navy
The United States Navy is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest in the world; its battle fleet tonnage is greater than that of the next 13 largest navies combined. The U.S...

 in the Battle of the Atlantic. In recognition that quantity was as important as quality in some roles, design policy was therefore modified to produce units that were easier to build and operate. Despite this, Japan's destroyer force was halved by the end of the war. The survivors were given to the Allies.

Evolution

The oldest Japanese destroyers at the declaration of war with the United States dated from World War I
World War I
World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 designs and were rated as "class 1" (greater than 1,000 tons (standard)) or "class 2" (under 1,000 tons (standard)). As these became outclassed and unsuitable for front line duties, they were relegated to coastal protection and convoy
Convoy
A convoy is a group of vehicles, typically motor vehicles or ships, traveling together for mutual support and protection. Often, a convoy is organized with armed defensive support, though it may also be used in a non-military sense, for example when driving through remote areas.-Age of Sail:Naval...

 escort duties, including support of the landings in the Dutch East Indies
Dutch East Indies
The Dutch East Indies was a Dutch colony that became modern Indonesia following World War II. It was formed from the nationalised colonies of the Dutch East India Company, which came under the administration of the Netherlands government in 1800....

 (now Indonesia
Indonesia
Indonesia , officially the Republic of Indonesia , is a country in Southeast Asia and Oceania. Indonesia is an archipelago comprising approximately 13,000 islands. It has 33 provinces with over 238 million people, and is the world's fourth most populous country. Indonesia is a republic, with an...

), Philippines
Philippines
The Philippines , officially known as the Republic of the Philippines , is a country in Southeast Asia in the western Pacific Ocean. To its north across the Luzon Strait lies Taiwan. West across the South China Sea sits Vietnam...

 and Wake Island
Wake Island
Wake Island is a coral atoll having a coastline of in the North Pacific Ocean, located about two-thirds of the way from Honolulu west to Guam east. It is an unorganized, unincorporated territory of the United States, administered by the Office of Insular Affairs, U.S. Department of the Interior...

.

The Washington Naval Treaty
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was an attempt to cap and limit, and "prevent 'further' costly escalation" of the naval arms race that had begun after World War I between various International powers, each of which had significant naval fleets. The treaty was...

 of 1922 assigned Japan a tonnage allocation with which it was dissatisfied. IJN planners assessed their needs to protect Japan's maritime lifelines with the assumption that their most likely opponent would be the United States. A total of 144 destroyers was deemed to be necessary. In order to achieve a long-ranged fleet, capable of operating far from home waters and bases, treaty limitations were disregarded. Japanese naval strategy assumed a major deciding battle against the United States and the destroyers' role would have been to harass and reduce the enemy in the lead up to such a battle. The resultant design was the Fubuki-class
Fubuki class destroyer
The was a class of twenty four destroyers of the Imperial Japanese Navy. The Fubuki class has been called "the world's first modern destroyer." The Fubuki class not only set a new standard for Japanese vessels, but for destroyers around the world...

, which were commissioned during 1928–1932. The Fubukis became the basis for subsequent destroyer development, but they needed significant modification when stability and hull strength problems became apparent. These modifications were worked into new ship designs.

The Japanese produced some unusual and advanced features. The third group of Fubukis introduced a unique splinter
Splinter
Splinter may refer to:* A sharp fragment of material, usually wood, metal, or fibreglass-Music:* Splinter * Splinter * Splinter...

proof torpedo tube turret
Turret
In architecture, a turret is a small tower that projects vertically from the wall of a building such as a medieval castle. Turrets were used to provide a projecting defensive position allowing covering fire to the adjacent wall in the days of military fortification...

 (later retrofitted), allowing the tubes to be reloaded in action. In addition, they introduced splinterproof, gas-tight turrets for the 5-inch guns, far ahead of their time. To increase comfort, the forecastle
Forecastle
Forecastle refers to the upper deck of a sailing ship forward of the foremast, or the forward part of a ship with the sailors' living quarters...

 was raised and the bridge enlarged and enclosed, to offer protection against weather in the Pacific
Pacific Ocean
The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic in the north to the Southern Ocean in the south, bounded by Asia and Australia in the west, and the Americas in the east.At 165.2 million square kilometres in area, this largest division of the World...

. Furthermore, in line with Japan's evident preference for two stacks, Fubukis had an unusual siamesed design.

The London Naval Treaty added more restrictions to ship design and displacements were temporarily reduced (Hatsuharu
Hatsuharu class destroyer
The were a class of Imperial Japanese Navy destroyers in the service before and during World War II. The final two vessels in the series, completed after modifications to the design, are sometimes considered a separate "Ariake-class".-Background:...

- and Shiratsuyu
Shiratsuyu class destroyer
The was a class of ten destroyers of the Imperial Japanese Navy in service before and during World War II.-Background:The initial six Shiratsuyu class destroyers were modified versions of the , and had been originally planned as the final six vessels of that class under the ”Circle-One” Naval...

-classes) until Japan withdrew from the naval treaties. The subsequent Asashio
Asashio class destroyer
The was a class of ten destroyers of the Imperial Japanese Navy in service before and during World War II.-Background:The Imperial Japanese Navy was not entirely satisfied with the performance of the , particularly in terms of operational range and speed...

s, Kagerō
Kagero class destroyer
The was a class of ships in service with the Imperial Japanese Navy during World War II. There were 19 ships total in the class. The IJN called them from their plan name.-Description:...

s, and Yūgumos resumed the design evolution and delivered the ships that the IJN desired, with substantially increased displacements. Further technical developments were prototyped in Shimakaze
Japanese destroyer Shimakaze
Japanese destroyer Shimakaze may refer to one of the following ships of the Imperial Japanese Navy:, an destroyer launched in 1920, renamed Patrol Boat No.1 in 1940 and sunk in 1943., a one-off WWII period super-destroyer launched in 1942, sunk in 1944...

, but the design was not continued. Although the anti-aircraft (AA) defences of Japanese destroyers were shown to be inadequate, the IJN had recognised the need for fleet AA defence and the Akizuki
Akizuki class destroyer
The Akizuki class destroyer of the Japanese Maritime Self-Defense Force is the successor to the old Murasame class destroyer. Like its predecessor, the primary task is anti-submarine warfare....

s were intended to fill this need.

The IJN suffered one problem with their destroyers: small batches of different types, which made standardized spares and training (such as on powerplant
PowerPlant
PowerPlant is an object-oriented GUI toolkit, application framework and set of class libraries for Mac OS, created by Metrowerks. The framework was fairly popular at the height of the Classic Mac OS era, and was primarily used with CodeWarrior...

) impossible. By contrast, the United States Navy's destroyer powerplant was standard across hundreds of ships.

A substantial number of Japanese destroyers were lost in 1942 in actions around the Solomon Islands
Solomon Islands
Solomon Islands is a sovereign state in Oceania, east of Papua New Guinea, consisting of nearly one thousand islands. It covers a land mass of . The capital, Honiara, is located on the island of Guadalcanal...

. The urgent need for replacements necessitated design simplifications to improve construction speed and war experience prompted improvements to damage control and anti aircraft weaponry. The resultant Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

 class destroyers were commissioned in 1944.

Naming history

Due to the anticipated expansion of the navy, the IJN originally issued numerical designations to every ship. However, the bland numerical designations were unpopular with the officers and crews. The IJN abolished destroyers' numerical designations in August 1928, reverting to names. The reverence held by the Japanese for the arts of war, promoted by the pre-war military governments, led to poetic sounding names for warships. Destroyers were allocated names associated with natural phenomena of weather, sky and sea, e.g., wind (kaze), snow (yuki), rain (ame), clouds (kumo), waves (nami), mist (kiri), frost (shimo), tides (shio), and the moon (tsuki).

Statistics

Excluding those ships that preceded the first "Special Type", or Fubuki, destroyers, Japan had sixty-eight font-line destroyers in commission at the declaration of war with the Allies (in contrast to the 144 planners had proposed). A further sixty-four were commissioned during the war, but these failed to compensate for the losses incurred and the number of ships available declined steadily until mid-1944. There was a further catastrophic decline in October and November, 1944, when over twenty were lost. Only thirty-one survived hostilities. The high level of destroyer losses has been attributed to the poor effectiveness of their anti-aircraft and anti-submarine weaponry and radar, the aggressiveness with which they were used, and their being squandered on supply missions
Tokyo Express
The Tokyo Express was the name given by Allied forces to the use of Imperial Japanese Navy ships at night to deliver personnel, supplies, and equipment to Japanese forces operating in and around New Guinea and the Solomon Islands during the Pacific campaign of World War II...

 to Guadalcanal.

Survivors

Despite the severe losses during the war, some Japanese destroyers survived. They were either scrapped or allocated as war reparation to one of the Allies (China, Netherlands, UK, USA or USSR).
Ship Japanese Class Fate
Kuri 栗, "chestnut" Momi
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

Surrendered September 1945. Mined 8 October 1945
Fuji (Renamed patrol boat No.36 in 1939) 藤, "wisteria
Wisteria
Wisteria is a genus of flowering plants in the pea family, Fabaceae, that includes ten species of woody climbing vines native to the eastern United States and to China, Korea, and Japan. Aquarists refer to the species Hygrophila difformis, in the family Acanthaceae, as Water Wisteria...

"
Momi
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

Surrendered August 1945. Ceded to the Netherlands in 1946 and scrapped 1947.
Ashi (became training ship Tomariura No.2) 葦, "reed" Momi
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

Surrendered August 1945. Scrapped 1947
Hasu 蓮, "lotus
Lotus (plant)
Lotus identifies various plant taxa:* Nelumbo, a genus of aquatic plants with showy flowers** Nelumbo nucifera, the Sacred or Indian lotus** Nelumbo lutea, the American or Yellow lotus...

"
Momi
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

Surrendered September 1945. Scrapped 1946
Sumire (became training ship Mitaka) 菫, "violet
Sumire
is the Japanese word for the flower violet, or in a more limited sense, it refers to Viola mandshurica which is one of the species of violet...

"
Momi
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

Surrendered August 1945. Scrapped March 1948
Namikaze
Japanese destroyer Namikaze
was the second ship of the Nokaze sub-class, an improvement to the 1st class destroyers built for the Imperial Japanese Navy following World War I...

波風, "wave wind" Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Ceded to China 1947and renamed Shen Yang.
Okikaze
Japanese destroyer Okikaze
was a destroyer, built for the Imperial Japanese Navy immediately following World War I. Advanced for their time, these ships served as first-line destroyers through the 1930s, but were considered obsolescent by the start of the Pacific War.-History:...

沖風, "open sea wind" Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Scrapped 1948
Sawakaze
Japanese destroyer Sawakaze
was a destroyer, built for the Imperial Japanese Navy immediately following World War I. Advanced for their time, these ships served as first-line destroyers through the 1930s, but were considered obsolescent by the start of the Pacific War.-History:...

沢風, "swamp/marsh wind" Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Scrapped 1948
Tachikaze
Japanese destroyer Tachikaze
was a destroyer, built for the Imperial Japanese Navy immediately following World War I. Advanced for their time, these ships served as first-line destroyers through the 1930s, but were considered obsolescent by the start of the Pacific War.-History:...

太刀風, "sword
Tachi
The is one type of traditional Japanese sword worn by the samurai class of feudal Japan.-History and description:With a few exceptions katana and tachi can be distinguished from each other if signed, by the location of the signature on the tang...

 wind"
Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Scrapped 1947
Yakaze
Japanese destroyer Yakaze
was a destroyer, built for the Imperial Japanese Navy immediately following World War I. Advanced for their time, these ships served as first-line destroyers through the 1930s, but were considered obsolescent by the start of the Pacific War.-History:...

矢風, "arrow wind" Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Scrapped
Yūkaze
Japanese destroyer Yukaze
was a destroyer, built for the Imperial Japanese Navy immediately following World War I. Advanced for their time, these ships served as first-line destroyers through the 1930s, but were considered obsolescent by the start of the Pacific War.-History:...

夕風, "evening wind" Minekaze
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

Ceded to UK 1947
Harukaze 春風, "spring wind" Kamikaze
Kamikaze class destroyer
The was a class of nine destroyers of the Imperial Japanese Navy. Some authors consider the Nokaze-class, Kamikaze-class and Mutsuki-class destroyers to be extensions of the Minekaze-class, and the Kamikaze-class is sometimes referred to as the "Kiyokaze-class" to distinguish it from the earlier...

Scrapped 1947
Kamikaze 神風, "divine wind" Kamikaze
Kamikaze class destroyer
The was a class of nine destroyers of the Imperial Japanese Navy. Some authors consider the Nokaze-class, Kamikaze-class and Mutsuki-class destroyers to be extensions of the Minekaze-class, and the Kamikaze-class is sometimes referred to as the "Kiyokaze-class" to distinguish it from the earlier...

Scrapped October 1947
Asagao 朝顔, "morning glory
Morning glory
Morning glory is a common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose current taxonomy and systematics is in flux...

"
Wakatake
Wakatake class destroyer
The was a class of eight 2nd-class destroyers of the Imperial Japanese Navy.-Background:The medium-sized Wakatake-class destroyers were a follow-on to the Momi class destroyer as part of the Imperial Japanese Navy's 8-6 Fleet Program from fiscal 1921 as a lower cost accompaniment to the larger...

Scrapped June 1948
Ushio
Japanese destroyer Ushio
was the twentieth of twenty-four destroyers, built for the Imperial Japanese Navy following World War I. When introduced into service, these ships were the most powerful destroyers in the world. They served as first-line destroyers through the 1930s, and remained formidable weapons systems well...

潮, "tide" Fubuki
Fubuki class destroyer
The was a class of twenty four destroyers of the Imperial Japanese Navy. The Fubuki class has been called "the world's first modern destroyer." The Fubuki class not only set a new standard for Japanese vessels, but for destroyers around the world...

Scrapped August 1948
Hibiki
Japanese destroyer Hibiki
| was the twenty-second of twenty-four destroyers, or the second of , built for the Imperial Japanese Navy in the inter-war period. When introduced into service, these ships were the most powerful destroyers in the world...

響, "echo" Akatsuki
Akatsuki class destroyer
The was a class of four destroyers of the Imperial Japanese Navy. Almost identical in appearance to the previous Fubuki class, they are regarded as a sub-class by many authors, partly because the Imperial Japanese Navy itself kept the improvements made a secret, and did not officially designate...

Ceded to USSR in 1947 and renamed Pritky. Scrapped 1963.
Yukikaze
Japanese destroyer Yukikaze
was a in service with the Imperial Japanese Navy during World War II. She was the only member of her class to survive the war. The attrition rate of Japanese destroyers was extremely high due to heavy, prolonged combat and the need to use them to transport supplies to scattered Japanese island...

雪風, "snow wind" Kagerō
Kagero class destroyer
The was a class of ships in service with the Imperial Japanese Navy during World War II. There were 19 ships total in the class. The IJN called them from their plan name.-Description:...

Surrendered August 1945, ceded to China in 1947 and renamed Tang-Ten. Scrapped after grounding in 1970.
Suzutsuki
Japanese destroyer Suzutsuki
was an Akizuki-class destroyer of the Imperial Japanese Navy. Her name means "Clear Moon ".On 6–7 April 1945, Suzutsuki escorted from the Inland Sea on her attack mission against the Allied forces fighting on Okinawa. Her bow was torn off by a torpedo from aircraft of Task Force 58, but survived...

鈴月, "bell moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Scrapped 1948.
Fuyutsuki 冬月, "winter moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Scrapped 1948.
Hanatsuki 花月, "flower moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Ceded to USA August 1947. Sunk as target off Gotō Islands
Goto Islands
The are Japanese islands in the East China Sea, off the western coast of Kyūshū. The islands are a part of Nagasaki Prefecture.- Geography :There are 140 islands in total, including five main islands:,,,, and....

, Japan February 1948.
Yoizuki
Japanese destroyer Yoizuki
was an Akizuki-class destroyer of the Imperial Japanese Navy. Her name means "Moon Visible as Day Joins Evening". She was commissioned too late to see action in World War II....

宵月, "early evening moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Ceded to China August 1947 and renamed Fen Yang. Scrapped 1963.
Harutsuki 春月, "spring moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Surrendered August 1945, ceded to USSR August 1947 and renamed Pospeschny.
Natsutsuki 夏月, "summer moon" Akizuki
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

Ceded to UK September 1947. Scrapped 1948.
Take 竹, "bamboo" Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to UK July 1947. Scrapped 1948.
Maki 槇, "Chinese black pine
Podocarpaceae
Podocarpaceae is a large family of mainly Southern Hemisphere conifers, comprising about 156 species of evergreen trees and shrubs. It contains 19 genera if Phyllocladus is included and if Manoao and Sundacarpus are recognized....

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to UK August 1947. Scrapped 1947.
Kiri 桐, "paulownia
Paulownia
Paulownia is a genus of from 6 to 17 species of plants in the monogeneric family Paulowniaceae, related to and sometimes included in the Scrophulariaceae. They are native to much of China, south to northern Laos and Vietnam, and long cultivated elsewhere in eastern Asia, notably in Japan and Korea...

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to USSR July 1947.
Sugi 杉, "cedar
Cryptomeria
Cryptomeria is a monotypic genus of conifer in the cypress family Cupressaceae formerly belonging to the family Taxodiaceae; it includes only one species, Cryptomeria japonica . It is endemic to Japan, where it is known as Sugi...

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to China July 1947, renamed Huiyang. Scrapped 1951.
Kashi 樫, "live oak
Live oak
Live oak , also known as the southern live oak, is a normally evergreen oak tree native to the southeastern United States...

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to US August 1947. Scrapped 1948
Kaya 萱, "Japanese nutmeg
Torreya nucifera
Torreya nucifera is a slow-growing, coniferous tree native to southern Japan and to South Korea's Jeju Island. It is also called ' or Japanese nutmeg-yew.-Description:It grows to 15-25 m tall with a trunk up to 1.5 m diameter...

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to USSR July 1947.
Kaede 楓, "maple" Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to China July 1947, renamed Hengyang. Scrapped 1962.
Nara 楢, "oak" Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Scrapped 1948.
Tsubaki 椿, "camellia
Camellia
Camellia, the camellias, is a genus of flowering plants in the family Theaceae. They are found in eastern and southern Asia, from the Himalaya east to Korea and Indonesia. There are 100–250 described species, with some controversy over the exact number...

"
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Scrapped 1948.
Keyaki 欅, "keyaki tree" (zelkova serrata
Zelkova serrata
Zelkova serrata is a species of Zelkova native to Japan, Korea, eastern China, and Taiwan. It is often grown as an ornamental tree, and used in bonsai.-Description:...

)
Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Ceded to US July 1947. Sunk off Bōsō peninsula
Boso Peninsula
thumb|Locationthumb|Landsat image with high-resolution data from Space Shuttle is a peninsula in Chiba prefecture on Honshū, the largest island of Japan. It forms the eastern edge of Tokyo Bay, separating it from the Pacific Ocean....

 as target 1947.
Yanagi 柳, "willow" Matsu
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

Scrapped 1948.


Actions

Japanese destroyers performed the usual range of tasks: fleet and convoy escorts, supply and reinforcement runs to various isolated island outposts and garrisons. Japanese destroyers were particularly skilled at night actions and the use of torpedo salvoes, tactics which attracted success in several actions. This advantage, however, was reduced by the Allies' use of superior radar
Radar
Radar is an object-detection system which uses radio waves to determine the range, altitude, direction, or speed of objects. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain. The radar dish or antenna transmits pulses of radio...

 and resources.

Badung Strait

After the Japanese landings on Bali
Bali
Bali is an Indonesian island located in the westernmost end of the Lesser Sunda Islands, lying between Java to the west and Lombok to the east...

 on February 19, 1942, two destroyers (Asashio
Japanese destroyer Asashio
was the lead ship of the ten destroyers built for the Imperial Japanese Navy in the mid-1930s under the Circle Two Program .-History:...

 and Ōshio
Japanese destroyer Oshio
was the second of ten destroyers built for the Imperial Japanese Navy in the mid-1930s under the Circle Two Supplementary Naval Expansion Program .-History:...

) were left to escort a transport to safety. In separate night actions, they engaged two superior ABDA
Abda
Abda may refer to:People*Abda , a personal name, given to two biblical figures*Abda of Edessa, saint of the Assyrian Church of the East*Abda of Dair-Koni, also known as Rabban Mar Abda, abbot and saint...

 flotillas, inflicted damage to one Allied cruiser (HNLMS Tromp
HNLMS Tromp (1937)
HNLMS Tromp was the lead ship of the Tromp-class light cruisers of the Royal Netherlands Navy during and after World War II.Originally designated as a flotilla leader and a torpedo cruiser in the Deckers Fleet Plan of 1931, she was laid down at the "Nederlandsche Scheepsbouw Maatschappij" ,...

) and sank a destroyer (HNLMS Piet Hein). Both Allied flotillas withdrew.

Tassafaronga

During the Solomon Islands Campaign
Solomon Islands campaign
The Solomon Islands campaign was a major campaign of the Pacific War of World War II. The campaign began with Japanese landings and occupation of several areas in the British Solomon Islands and Bougainville, in the Territory of New Guinea, during the first six months of 1942...

, eight Japanese destroyers running supplies were surprised by five American cruisers and four destroyers. Despite the loss of one of the flotilla (Takanami), the Japanese launched a torpedo salvo to cover their withdrawal. Of the five U.S. cruisers, one was sunk (USS Northampton
USS Northampton (CA-26)
USS Northampton was a heavy cruiser in service with the United States Navy. She was the lead ship of her class and commissioned in 1930...

) and three (USS Minneapolis
USS Minneapolis (CA-36)
USS Minneapolis was a New Orleans class heavy cruiser built for the United States Navy before the outbreak of World War II, the second ship named for Minneapolis, Minnesota....

, New Orleans
USS New Orleans (CA-32)
USS New Orleans was a United States Navy heavy cruiser, the lead ship of her class. The New Orleans-class represented the last of the Treaty Cruisers, built to the specifications and standards of the Washington Naval Treaty. Originally, was the lead ship of this class...

, and Pensacola
USS Pensacola (CA-24)
USS Pensacola of the United States Navy was the lead ship of her class of heavy cruiser. The third Navy ship to be named after the city of Pensacola, Florida, she was nicknamed the "Grey Ghost" by Tokyo Rose. She received 13 battle stars for her service.She was laid down by the New York Navy Yard...

) severely damaged.

At this stage in the war, the Allies were unaware of the range of the Type 93 torpedo (up to 40 km {25 sm}). The damage inflicted on the cruisers at Tassafaronga was, therefore, initially attributed to undetected submarines.

Cape St George

On 25/26 November 1943, six Japanese destroyers successfully delivered reinforcements to Buka Island
Buka Island
Buka Island is the second largest island in the Papua New Guinean province of Bougainville.- History :Buka was first occupied by humans in paleolithic times, some 30,000 years ago...

 at the northern end of the Solomon Islands. On their return to Rabaul
Rabaul
Rabaul is a township in East New Britain province, Papua New Guinea. The town was the provincial capital and most important settlement in the province until it was destroyed in 1994 by falling ash of a volcanic eruption. During the eruption, ash was sent thousands of metres into the air and the...

, however, they were intercepted by five U.S. destroyers. Exploiting their superior radar, the Americans were able to make a torpedo attack before being detected. Three Japanese warships were lost (Onami
Japanese destroyer Onami
The was a of the Imperial Japanese Navy. Her name means "Billow Wave" .On the night of 24–25 November 1943, Ōnami led a troop transport/evacuation run to Buka Island. In the Battle of Cape St. George, she was torpedoed by , and and/or , 55 miles east-southeast of Cape St. George...

, Makinami
Japanese destroyer Makinami
Makinami was a of the Imperial Japanese Navy. Her name means "Overflowing Waves" .On the night of 24-25 November 1943, Makinami was on a troop evacuation run to Buka Island when she was sunk in the Battle of Cape St. George...

 and Yugiri
Japanese destroyer Yugiri
was the fourteenth of twenty-four destroyers, built for the Imperial Japanese Navy following World War I. When introduced into service, these ships were the most powerful destroyers in the world...

, without loss to the Americans. This was the last "Tokyo Express
Tokyo Express
The Tokyo Express was the name given by Allied forces to the use of Imperial Japanese Navy ships at night to deliver personnel, supplies, and equipment to Japanese forces operating in and around New Guinea and the Solomon Islands during the Pacific campaign of World War II...

" supply operation.)

Momi

Twenty-one vessels of the Momi class
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

 (樅, "Fir Tree") were built by Japan and commissioned in the early 1920s as second class destroyers. They displaced 770 tons standard and carried three 4.7 in (120 mm) guns and four 21 in (53 cm) torpedo tubes.

By the outbreak of war with the United States in 1941, all had either been scrapped, reduced to non-combatant roles or were used for secondary escort work. Five survived the war and were scrapped soon after.

Minekaze

Thirteen Minekaze class
Minekaze class destroyer
The was a class of fifteen 1st-class destroyers of the Imperial Japanese Navy. Obsolete by the beginning of the Pacific War, the Minekaze class ships were relegated to mostly secondary roles, serving throughout the war as patrol vessels, high speed transports, target control vessels, and as kaiten...

 (峯風, "Summit Wind") ships were commissioned between March 1920 and July 1922. They were developments of earlier classes (e.g.., the Amatsukaze class destroyer
Amatsukaze class destroyer
Amatsukaze was the first Japanese Maritime Self-Defense Force destroyer to have surface-to-air missiles, and the only ship of its type. Its primary tasks included air defense and ASW. It was launched on October 5, 1963, and decommissioned in 1995....

), displaced 1,650 tons (full load) and carried four 4.7 in (120 mm) guns and six 21 in (53 cm) torpedo tubes. The siting some of the weaponry was poor. Two of the four guns were placed amidships, one forward
Bow (ship)
The bow is a nautical term that refers to the forward part of the hull of a ship or boat, the point that is most forward when the vessel is underway. Both of the adjectives fore and forward mean towards the bow...

 and one abaft the after funnel; in this position they had limited arcs of fire, being restricted by the ships' superstructure. One torpedo tube mounting was ahead of the bridge and liable to be washed over by heavy seas.

By the start of the war, these ships were no longer suitable for fleet duties, being used instead as escorts. Six survived the war.

Wakatake

Eight Wakatake class
Wakatake class destroyer
The was a class of eight 2nd-class destroyers of the Imperial Japanese Navy.-Background:The medium-sized Wakatake-class destroyers were a follow-on to the Momi class destroyer as part of the Imperial Japanese Navy's 8-6 Fleet Program from fiscal 1921 as a lower cost accompaniment to the larger...

 (若竹, "Young Bamboo") ships were commissioned between September 1922 and November 1923, seven (one lost in a storm in 1932) served in World War II, one re-rated as a patrol boat. They were small (1,100 tons) second class destroyers, developed from the Momi class
Momi class destroyer
The Momi class destroyers was a class of twenty one 2nd class destroyers of the Imperial Japanese Navy. All were named for plants. Obsolete by the beginning of the Pacific War, the Momi were relegated to mostly secondary roles, with some vessels serving throughout the war as patrol vessels...

. Armament consisted of three 4.7 in (120 mm) guns (one replaced by two triple 25mm weapons in 1941–1942) and four 21 in (53 cm) torpedo tubes. Minesweeping and minelaying capabilities were replaced by depth charge
Depth charge
A depth charge is an anti-submarine warfare weapon intended to destroy or cripple a target submarine by the shock of exploding near it. Most use explosives and a fuze set to go off at a preselected depth in the ocean. Depth charges can be dropped by either surface ships, patrol aircraft, or from...

 launchers.

As with other destroyers of their age, they were unsuitable for fleet operations by the start of the war with the United States and served as escorts. Their shallow draft allowed their inshore use in China and the Philippines. One ship survived the war.

Kamikaze

Nine Kamikaze class
Kamikaze class destroyer
The was a class of nine destroyers of the Imperial Japanese Navy. Some authors consider the Nokaze-class, Kamikaze-class and Mutsuki-class destroyers to be extensions of the Minekaze-class, and the Kamikaze-class is sometimes referred to as the "Kiyokaze-class" to distinguish it from the earlier...

 (神風, "Divine Wind") ships were commissioned between December 1922 and December 1924. They were similar to the Minekaze class, with an enlarged bridge and broader beam to compensate. The construction of this class was cut short by Japan's participation in the Washington Naval Treaty
Washington Naval Treaty
The Washington Naval Treaty, also known as the Five-Power Treaty, was an attempt to cap and limit, and "prevent 'further' costly escalation" of the naval arms race that had begun after World War I between various International powers, each of which had significant naval fleets. The treaty was...

 of 1922.

Ships of the class were active in several Japanese sea-borne landings in Malaya
British Malaya
British Malaya loosely described a set of states on the Malay Peninsula and the Island of Singapore that were brought under British control between the 18th and the 20th centuries...

, the Philippines and the Dutch East Indies. In the last case, they defended the landings against the Allied cruisers HMAS Perth
HMAS Perth (D29)
HMAS Perth was a Modified Leander class light cruiser operated by the Royal Australian Navy during World War II. She was constructed for the Royal Navy , and commissioned as HMS Amphion in 1936...

 and USS Houston
USS Houston (CA-30)
USS Houston , nicknamed the "Galloping Ghost of the Java Coast", was a Northampton-class heavy cruiser of the United States Navy...

 at the Battle of Sunda Strait
Battle of Sunda Strait
The Battle of Sunda Strait was a naval battle which occurred during World War II. On the night of 28 February – 1 March 1942, the Australian light cruiser and the American heavy cruiser faced a major Imperial Japanese Navy task force. After a fierce battle of several hours duration, both Allied...

. Two survived the war and were scrapped soon after.

Mutsuki

Twelve Mutsuki class
Mutsuki class destroyer
The was a class of twelve destroyers of the Imperial Japanese Navy. All were given traditional poetic names of the months of the year by the Lunar calendar or phases of the moon...

 (睦月, "First Moon") ships were commissioned between November 1925 and July 1927. They were developed from the Kamikaze class and introduced the new 24 in (60 cm) Type 93 torpedo
Type 93 torpedo
The Type 93 was a -diameter torpedo of the Imperial Japanese Navy , launched from surface ships. It is commonly referred to as the Long Lance by most modern English-language naval historians, a nickname given it after the war by Samuel E. Morison, the chief historian of the U.S...

. These were in triple mounts, allowing the reduction of torpedo placements from three to two. Half of the class were rebuilt in 1935–36, receiving shields to the torpedo tubes, strengthened hulls and modifications to funnels. Further changes occurred in 1941–1942 when many were converted to fast transports, with reduced gunnery.

All Mutsuki class ships were lost during the war.

Fubuki

The twenty Fubuki class
Fubuki class destroyer
The was a class of twenty four destroyers of the Imperial Japanese Navy. The Fubuki class has been called "the world's first modern destroyer." The Fubuki class not only set a new standard for Japanese vessels, but for destroyers around the world...

 (吹雪, "Snowstorm"), or "Special Type", destroyers were commissioned between May 1928 and May 1932. They were a completely new design and a radical change from their predecessors.

The 1922 Washington Naval Treaty had limited the tonnage of Japanese warships and, to counteract this, the IJN sought to build a high quality, technologically advanced navy. The Fubukis resulted from this. Treaty provisions pointed to an individual ship displacement of 1,400 tons, but this was disregarded: the proposals of 1924 resulted in nearly 1,800 tons.

The design changes included 5-inch guns, twin mounted in weatherproof, splinter-proof turrets, the transfer aft of torpedo tubes from forward of the bridge, a high, covered bridge and an improved power plant. The new positioning of the torpedo tubes enabled the extension aft of the forecastle
Forecastle
Forecastle refers to the upper deck of a sailing ship forward of the foremast, or the forward part of a ship with the sailors' living quarters...

 and thus greatly improved the ships' seakeeping. Two types of turret were fitted. Type A, with 40° elevation were superseded by Type B with 75° elevation, but neither were satisfactory as anti-aircraft mountings. Anti-aircraft weaponry was otherwise inadequate and it was progressively strengthened during refits, with a final count of 22 25 mm (1 in) guns in some vessels. The Type 93 torpedo had proved itself and was installed in this and all subsequent classes.

Although an impressive and powerful specification, the Fubukis suffered from design flaws. In order to squeeze the required performance into the required displacement, weight had been saved by the use of light alloys, lighter machinery and the use of welded construction. The reduction of weight within the hulls, and the mass of superstructure, produced potentially unstable vessels, but this was not appreciated until March 1934, when the torpedo boat Tomozuru
Japanese torpedo boat Tomozuru
was one of four s of the Imperial Japanese Navy. She capsized in a storm on March 12, 1934, shortly after her completion. This incident forced the IJN to review the stability of all recently completed, under construction and planned ships. She was salvaged and put back into service after extensive...

 capsized and the IJN reviewed all of its ships' designs. In addition, five ships were severely damaged (in two instances, the bows were lost) in a typhoon and another five had lesser damage to their hulls.

As a result, in 1937 and 1938, all Fubukis had their bridges and other superstructure reduced and magazines converted to oil storage (this would act as ballast). The last members of the class to be built were equipped with lighter Type C turrets with reduced elevation. Despite the increased weight (to 2,090 tons) leading to a loss of speed (by 1 knot {1.8 km/h, 1.2 mph}), these destroyers remained amongst the best warships of their type.

One ship survived the war.

Akatsuki

The four Akatsuki class
Akatsuki class destroyer
The was a class of four destroyers of the Imperial Japanese Navy. Almost identical in appearance to the previous Fubuki class, they are regarded as a sub-class by many authors, partly because the Imperial Japanese Navy itself kept the improvements made a secret, and did not officially designate...

 (暁, "Daybreak") were commissioned between August 1932 and March 1933. They were derived from the preceding Fubuki design. They were lighter than the Fubukis, with less powerful machinery. Improved design meant they produced comparable power with just three boilers, rather than four. The bridge was enlarged, and new firecontrol systems were fitted. Torpedo tubes were fitted with shields, and reloads were carried.

They also had the same design issues of stability and hull strength which were similarly corrected. The resulting increase in displacement reduced their maximum speed to 34 kt (63 km/h, 39 mph).

Hibiki had the distinction of being IJN's first all-welded ship.

Three were lost during the war, and the lone survivor was transferred to the Soviet Union postwar.

Hatsuharu

The six Hatsuharu class
Hatsuharu class destroyer
The were a class of Imperial Japanese Navy destroyers in the service before and during World War II. The final two vessels in the series, completed after modifications to the design, are sometimes considered a separate "Ariake-class".-Background:...

 (初春, "Early Spring") were commissioned between September 1933 and March 1935. They were reduced versions of the preceding Akatsuki design, resulting from the restrictions of the 1930 London Naval Treaty
London Naval Treaty
The London Naval Treaty was an agreement between the United Kingdom, the Empire of Japan, France, Italy and the United States, signed on April 22, 1930, which regulated submarine warfare and limited naval shipbuilding. Ratifications were exchanged in London on October 27, 1930, and the treaty went...

. A further six incomplete vessels were redesigned in the light of stability problems and eventually commissioned as Shiratsuyus.

With much ingenuity, the Treaty limitations were (nearly) adhered to and displacement was a little over 1500 tons. Despite this, the Hatsuharus retained all but one of the Special Types' 5 inch guns and introduced the oxygen-powered version of the 24 inch torpedo. They introduced a forward, superfiring single 5 inch gun and retained the tall bridge structure. The impact of the Tomozuru incident, which exposed the instability of contemporary Japanese warship designs, affected the Hatsuharus and the two that had been completed and four more under construction were significantly redesigned. The forward single gun was moved aft to a lower position, the bridge and other structures were reduced or removed and ballast was added. Displacement increased to 2,090 tons and speed was consequently reduced.

These ships saw service throughout the Pacific, from the Aleutians to the Solomon Islands. All were lost before the Japanese surrender.

Shiratsuyu

The ten Shiratsuyu class
Shiratsuyu class destroyer
The was a class of ten destroyers of the Imperial Japanese Navy in service before and during World War II.-Background:The initial six Shiratsuyu class destroyers were modified versions of the , and had been originally planned as the final six vessels of that class under the ”Circle-One” Naval...

 (白露, "White Dew") were commissioned between August 1936 and August 1937. They were redesigned Hatsuharas (six, later increased to ten), in the light of the Tomozuru incident.

These were very similar to the Hatsuharus but with a narrower and deeper hull and greater displacement (1,710 tons). The gun layout of the Hatsuharus was retained but Type C gun houses were used and the torpedo mountings were quadruples, for the first time. The four added ships were further developed, showing an evolution into the succeeding Asashios.

All ten were lost during the war.

Asashio

The ten Asashio class
Asashio class destroyer
The was a class of ten destroyers of the Imperial Japanese Navy in service before and during World War II.-Background:The Imperial Japanese Navy was not entirely satisfied with the performance of the , particularly in terms of operational range and speed...

 (朝潮, "Morning Tide") were commissioned between August 1937 and June 1938. They were developments of preceding designs with the intention of combining the firepower of the Fubukis with the designed stability of the Shiratsuyus. The outcome was a displacement in excess of Japan's commitments under the London Naval Treaty, from which Japan had already decided to withdraw.

Six 5 inch guns were mounted in three Type C turrets, with the two aft turrets super-firing (i.e., one turret mounted higher than and firing over the other). Stability was sustained by an increase in the beam. Engine power was increased. Despite preceding experience, there were two significant defects in the design, however. Rudder design did not give the required turning circle and the stern was redesigned as transom
Transom (nautical)
In naval architecture, a transom is the surface that forms the stern of a vessel. Transoms may be flat or curved and they may be vertical, raked forward, also known as a retroussé or reverse transom, angling forward from the waterline to the deck, or raked aft, often simply called "raked", angling...

. The new engines suffered damage to the turbine blades, a problem not solved until 1943.

The class was active in the landings in the Dutch East Indies, Battle of Midway
Battle of Midway
The Battle of Midway is widely regarded as the most important naval battle of the Pacific Campaign of World War II. Between 4 and 7 June 1942, approximately one month after the Battle of the Coral Sea and six months after Japan's attack on Pearl Harbor, the United States Navy decisively defeated...

 and the Solomon Islands. All were lost during the war.

Kagerō

The eighteen Kagerō class
Kagero class destroyer
The was a class of ships in service with the Imperial Japanese Navy during World War II. There were 19 ships total in the class. The IJN called them from their plan name.-Description:...

 (陽炎, "Heat Haze") were commissioned between November 1939 and July 1941. In 1937, Japan withdrew from the London Naval Treaty and the Kagerōs were designed free of these restrictions, utilising experience drawn from previous classes.

The outcome was a class of ships exceeding 2,500 tons. Solutions to the stability problems of earlier classes were incorporated in the design, with a lower bridge and a slightly wider and deeper hull. Weaponry was restored to the six 5 inch guns of the Fubukis, in Type C mountings, and eight 24 inch torpedoes, in two quadruple mountings with improved reloading facilities, were also fitted. New engines and machinery layouts were used to improve performance and weight. As completed, there was no improvement to anti-submarine and anti-aircraft (AA) weaponry, somewhat surprisingly in view of Japan's commitment to naval aviation and the anti-aircraft capability of the subsequent Akizuki class. During 1943 and 1944, however, the AA outfit was improved on the surviving ships and radar was fitted.

Ships of the class screened the force that attacked at Pearl Harbor. They were also present in the Philippines, Midway and the Dutch East Indies. One ship survived the war: it was ceded to China.

Shimakaze

Shimakaze
Japanese destroyer Shimakaze
Japanese destroyer Shimakaze may refer to one of the following ships of the Imperial Japanese Navy:, an destroyer launched in 1920, renamed Patrol Boat No.1 in 1940 and sunk in 1943., a one-off WWII period super-destroyer launched in 1942, sunk in 1944...

 (島風, "Island Wind"), the sole member of its class, was commissioned in May 1943. It was an experimental design.

Within a significantly larger hull that displaced 2,600 tons, a new turbine design gave 50% more power than earlier designs and enabled trials speeds of over 40 knots (74 km/h, 46 mph). The standard six five-inch guns were retained but in Type D turrets with greater elevation. The larger hulls allowed 15 torpedo tubes in three quintuple mounts. During 1943/44, the AA gunnery was improved and radar was fitted.

The class, of which Shimakaze was the prototype, was not ordered. She was sunk in the Philippines in November, 1944.

Yūgumo

The twenty Yūgumo class (夕雲, "Evening Clouds") were commissioned between September 1941 and May 1944. They were continuation of the earlier Kagerō class, with some changes.

The hull was marginally longer and broader and the main guns were mounted in Type D turrets. The anti-aircraft weaponry was improved during 1943–44, completed ships had one 5 inch turret removed to allow room for additional 25 millimetre weapons, but incomplete ones had extra space built in and retained all six 5 inch guns. Ships of this class commissioned in March 1942 and later were the first Japanese destroyers to be completed with radar (Types 13 and 22).
All of the class were lost during the war.

Akizuki

The sixteen Akizuki class
Akizuki class destroyer (1942)
The was one of the primary classes of new destroyers of the Imperial Japanese Navy after 1942. The IJN called them from their plan name. They were designed to fight larger ships, aircraft and submarines....

 (秋月, "Autumn Moon") were commissioned between June 1942 and January 1945. They were originally intended as anti-aircraft ships, but were instead completed as general purpose destroyers. This class was the first to be equipped with radar.

The design diverged from the IJN destroyer standard of six 5 in (127 mm) guns, instead mounting eight 3.9 in (100 mm) high-velocity guns in four high angle mountings. Their rapid fire, 90° elevation and excellent AA fire control system provided an effective dual purpose weapon to the Imperial Japanese Navy for the first time. In fact, the 100 mm's range and rate of fire both exceeded the U.S. Navy's standard 5 in (127 mm)/38 calibre. Four 24in torpedo tubes and depth charge throwers were added as the requirements changed to a general-purpose warship. The heavier gun mountings and the extra super-firing mounting required a significantly larger hull than the Yūgumos to ensure stability. The class displaced 2,740 tons.

The class was incomplete at the end of the war, three were cancelled and one was scrapped before its launch. A further 32 planned ships to improved designs (Arashikaru and Yamatsuki groups) were cancelled due to raw material shortages. Six Akizukis survived the war of which two were scrapped and four were ceded to Allied navies (China, UK, USA, USSR).

Matsu

The eighteen Matsu class
Matsu class destroyer
The were a class of destroyer built for the Imperial Japanese Navy , who referred to them as .-Design basis:The Matsu class were built late in World War II, and they were intended to be more cost-effective in response to the changing character of naval warfare at that time...

 (松, "Pine Tree") were commissioned between April 1944 and January 1945. This class were a simplified destroyer design introduced to speed construction times and intended to be used for escort and supply missions. The urgent need for replacements arose from the severe losses around the Solomon Islands in 1942.

The design criteria were speed of build, improved damage-control and anti-aircraft and torpedo capabilities. The hull design was simplified and shorter than the Fubukis, partly due to a reduction in the number of boilers, which itself resulted in a significant reduction in speed. The heretofore standard six 5 inch, 50 calibre weapons were replaced by three Type 89 5 inch/40 calibre guns which performed better than its predecessor in an AA role. The enclosed turrets were also replaced by a forward single open shield and an aft twin open mounting. This major redesign delivered a significantly smaller ship (1,280 tons). A number of the class were modified to transport kaiten
Kaiten
The Kaiten were manned torpedos and suicide craft, they were used by the Imperial Japanese Navy in the final stages of World War II.-History:...

.

Eleven additional ships were cancelled and replaced by a greater number of Tachibanas. Seven Matsus were sunk during the war, three were scrapped and eight were ceded to Allied navies.

Tachibana

Fourteen Tachibana class (橘, "Tachibana orange") ships were commissioned between January and June 1945. Another four were launched but not completed and five were not launched before the Japanese surrender. They were a development of the Matsu class, with further simplifications to the design.

Four were lost in ports or home waters in the final weeks of the war and the remainder were scrapped or given to Allied navies.

Guns

  • 4.7in/45 calibre (classes: Momi, Minekaze, Kamikaze, Wakatake & Mutsuki)
  • 5in/50 calibre 1914 type (Fubuki and all subsequent classes except Akizuki)
  • 5 inch/40 calibre Type 89 (Matsu)
  • 3.9in/65 calibre Type 98 (Akizuki)
  • 7.7mm
  • 13mm (classes: Akatsuki, Hatsuhara, Shiratsuyu)
  • Type 96 25 mm AT/AA Gun (classes: Asashio and all subsequent classes)

Gun mountings

  • 3rd year type 1914 hand-worked
  • Type "A" (40° maximum elevation) (Fubuki)
  • Type "B" (75° maximum elevation) (classes: Fubuki, Akatsuki, Hatsuhara)
  • Type "C" (55° maximum elevation) (classes: Shiratsuyu, Asashio, Kagerō)
  • Type "D" (75° maximum elevation) (classes: Shimakaze, Yūgumo)
  • 90° maximum elevation enclosed (Akizuki)
  • 90° maximum elevation open (Matsu)

Torpedoes

  • 21in (Momi, Minekaze, Kamikaze & Wakatake)
  • 24in Type 93 torpedo
    Type 93 torpedo
    The Type 93 was a -diameter torpedo of the Imperial Japanese Navy , launched from surface ships. It is commonly referred to as the Long Lance by most modern English-language naval historians, a nickname given it after the war by Samuel E. Morison, the chief historian of the U.S...

    (Mutsuki, Fubuki, Akatsuki; oxygen fuelled in Hatsuhara and all subsequent classes)

Radar

The first radar sets were installed in Japanese destroyers in March 1942, initially in newly commissioned ships of the Yūgumo class. This continued at an increasing rate through 1943 and 1944, with retro-fitting of existing and even older, pre-1922, vessels.

Type 13

Aircraft detection radar experimentally introduced in 1941, widely fitted from March 1943. Effective up to 100 kilometres (62.1 mi).

Type 21

Used for aircraft and ship detection; introduced in August 1943. Effective against aircraft up to 100 kilometres and against ships up to 20 kilometres (12.4 mi). It was the first Japanese set capable of deriving height estimates for aircraft.

Type 22

Used for aircraft and ship detection up to 35 km and 34.5 km, respectively. Introduced in August 1943. It was also capable of gunnery control and became the most widely installed Japanese naval set.
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