The were a class of nineteen 1st Class destroyers built for the

Imperial Japanese Navy The Imperial Japanese Navy (IJN; Kyūjitai: Shinjitai: ' 'Navy of the Greater Japanese Empire', or ''Nippon Kaigun'', 'Japanese Navy') was the navy of the Empire of Japan from 1868 to 1945, when it was dissolved following Japan's surrend ...

during the 1930s, and operated by them during the Pacific War, when all but one were lost. The class was also one of a series called within the Imperial Japanese Navy from their plan name. At the time of introduction, these destroyers were among the deadliest destroyers afloat, primarily due to the excellent range and lethality of their "Long Lance" torpedoes.

Background

Following on the success of the , the ''Kagerō'' class was very similar in design, but was slightly larger and incorporated a number of improvements which had been gained through operational experience. It had a heavier

main battery A main battery is the primary weapon or group of weapons around which a warship is designed. As such, a main battery was historically a gun or group of guns, as in the broadsides of cannon on a ship of the line. Later, this came to be turreted ...

and much heavier

torpedo A modern torpedo is an underwater ranged weapon launched above or below the water surface, self-propelled towards a target, and with an explosive warhead designed to detonate either on contact with or in proximity to the target. Historically, s ...

armament than other contemporary foreign destroyer designs. The first 15 ships of this class were ordered in 1937 under the 3rd Naval Armaments Supplement Programme and the final four vessels were ordered in 1939 under the 4th Naval Armaments Supplement Programme. The final vessel in the class, , was sometimes mistaken for part of the succeeding by immediate postwar historians due to confusion over the number of fictitious destroyers listed in the Japanese budgetary records in an effort to conceal the budget devoted to the secret battleships.

Design and description

The ''Kagerō'' class used the same hull and

bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...

as the preceding ''Asashio'' class and had an almost identical silhouette. The main visual difference was that the reloads for the forward torpedo launcher were located in front of the launcher instead of to the rear. The ships measured

overall Overalls, also called bib-and-brace overalls or dungarees, are a type of garment usually used as protective clothing when working. The garments are commonly referred to as a "pair of overalls" by analogy with "pair of trousers". Overalls were ...

, with a beam of and a

draft Draft, The Draft, or Draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a vesse ...

of .Chesneau, p. 194 They displaced at

standard Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object th ...

load and at deep load.Whitley, pp. 200–01 The displacement and beam were thus slightly larger than for the ''Asashio'' class, giving greater stability. Their crew numbered 240 officers and enlisted men. The ships had two

Kampon The was the externally operating division of the Ministry of the Navy of Japan responsible for the administration of naval vessel construction. From 1923 onward, it took on the role of a research institution for the research and development of n ...

geared steam turbines, each driving one

propeller shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power and torque and rotation, usually used to connect ...

, using steam provided by three Kampon

water-tube boiler A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which boils water in the steam-gen ...

s. The turbines were rated at a total of for a designed speed of . The ships had a range of at a speed of .Jentschura, Jung & Mickel, p. 148 had an experimental boiler which developed a higher steam pressure, but this did not result in any increase in performance.

Armament

As built, the weapons suite of the ''Kagerō'' class was identical to that of the preceding ''Asashio'' class. The main battery consisted of six 5-inch 12.7 cm/50 Type 3 naval guns in three twin-

gun turret A gun turret (or simply turret) is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechani ...

s, one superfiring pair aft and one turret forward of the superstructure. The guns were capable of 55-degree elevation. The ships were also armed with eight

torpedo tube A torpedo tube is a cylindrical device for launching torpedoes. There are two main types of torpedo tube: underwater tubes fitted to submarines and some surface ships, and deck-mounted units (also referred to as torpedo launchers) installed aboa ...

s for the oxygen-fueled Type 93 "Long Lance" torpedo in two quadruple traversing mounts; one reload was carried for each tube. Their anti-submarine weapons initially comprised 16 depth charges, which was increased to 36 during the course of the Pacific War. In terms of anti-aircraft capability, initially two twin-mount Type 96 AA guns were placed forward of the second smokestack. As the war progressed, the number of Type 96 guns was gradually increased. In 1942–1943, the twin mounts were replaced by triple mounts, and another twin mount was added forward of the bridge. From 1943 to 1944, on surviving vessels the superfiring "X" turret was removed and replaced by two more triple mounts. In late 1944, the seven surviving vessels were fitted with a varying number of additional guns. and received seven single mounts, whereas received 14 single mounts and four Type 93 13 mm machine guns. became the first Japanese destroyer to be equipped with

radar Radar is a detection system that uses radio waves to determine the distance ('' ranging''), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, we ...

when a Type 22 set was installed in late 1942. The other vessels were equipped with radar as they rotated back to Japan for repair or refit. All seven vessels surviving in mid-1944 also received a Type 13 radar.

Operational history

During the war the ''Kagerō'' class was used extensively in the Solomons campaign, and wartime attrition was severe, with 18 of 19 vessels lost. In all, six were sunk by air attack, five by submarine attack, five in battle with other surface forces, one by a mine, and the remaining two sunk by a combination of mines and air attack. was the only ''Kagerō''-class ship afloat at the end of the war. All but the (sunk in February of 1942) took part in the

Battle of Midway The Battle of Midway was a major naval battle in the Pacific Theater of World War II that took place on 4–7 June 1942, six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea. The U.S. Navy under ...

. 7 out of the only 9 destroyers of the Pearl Harbor strike force were of the ''Kagero'' class.

Ships in class

Notes

References

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External links

"Kagerō class" at CombinedFleet.com

{{DEFAULTSORT:Kagero-class destroyer Destroyer classes