Yūgumo-class Destroyer
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The were a group of 19 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 surrender ...
during World War II. The IJN called them from their plan name. No ships of the class survived the war.


Background

The ''Yūgumo'' class was a repeat of the preceding with minor improvements that increased their anti-aircraft capabilities. The first 11 ships of the class were ordered as part of the 1939
4th Naval Armaments Supplement Programme The was one of the armaments expansion plan of the Imperial Japanese Navy (IJN). Background In 1939, the IJN started new naval armaments expansion plan. It extended to 80 warships and 75 Naval Air Groups by 1.6 billion JPY. Table of vessels No ...
. Another 16 ships (the ''Hayanami'' sub-class) were ordered as ships #340 to #355 as part of the 1941
Rapid Naval Armaments Supplement Programme The was one of the armaments expansion plan of the Imperial Japanese Navy (IJN). Background In August 1941, the IJN started building warships for war. It extended to 293 vessels, 300,000 tons. Table of vessels See also * 1st Naval Armaments Sup ...
, but of these eight were canceled before being laid down. Another eight ships (the ''Kai-Yūgumo'' sub-class) were planned as ships #5041 to #5048 under the 1942 Modified 5th Naval Armaments Supplement Programme, but these were also canceled.


Design and description

The ''Yūgumo'' class was 45 tons heavier and a few feet longer than the ''Kagerō'' class, distinguishable in silhouette primarily by the shape of the bridge. The ''Yūgumo'' class had a forward slope on the bridge, which was intended to reduce wind resistance and improve stability. Another difference was that the ''Yūgumo''-class vessels were built by three different shipyards, and there were minor differences between individual ships, depending on the builder and when the ship was built. The general specifications for the ''Yūgumo'' class was a
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 ...
length, with 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 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 vessel ...
of . 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, p. 203 Their crew numbered 228 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 turbine A steam turbine is a machine that extracts thermal energy from pressurized steam and uses it to do mechanical work on a rotating output shaft. Its modern manifestation was invented by Charles Parsons in 1884. Fabrication of a modern steam turbin ...
s, 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-gene ...
s. The turbines were rated at a total of for a designed speed of . The
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 ...
of the ''Yūgumo'' class consisted of six Type 3 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 Superfiring armament is a naval military building technique in which two (or more) turrets are located in a line, one behind the other, with the second turret located above ("super") the one in front so that the second turret can fire over the ...
pair aft and one turret forward of the
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 ...
. The guns were in a new type of mount (known as the "D" mount) which was able to elevate up to 75° to increase their performance against aircraft; however, their slow rate of fire, slow traversing speed, and the lack of any sort of high-angle
fire-control system A fire-control system (FCS) is a number of components working together, usually a gun data computer, a director, and radar, which is designed to assist a ranged weapon system to target, track, and hit a target. It performs the same task as a ...
meant that they were virtually useless as
anti-aircraft gun Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based, ...
s.Campbell, p. 192 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 in a two quadruple traversing mounts; one reload was carried for each tube. Their anti-submarine weapons comprised two
depth charge A depth charge is an anti-submarine warfare (ASW) weapon. It is intended to destroy a submarine by being dropped into the water nearby and detonating, subjecting the target to a powerful and destructive Shock factor, hydraulic shock. Most depth ...
throwers for which 36 depth charges were carried. As built, the ''Yūgumo'' class had four Type 96 anti-aircraft guns in two twin-mounts forward of the aft smokestack. as with other destroyer classes, as the Pacific War progressed, anti-aircraft armaments were increased. From 1943, two triple-mounts replaced the twins aft and one twin-mount Type 96 was added forward of the bridge and a Type 22 radar. Units surviving into 1944 had a second pair of 25mm triple-mounts added on a platform behind the forward smokestack. The six units surviving into late 1944 received up to twelve additional single-mount Type 96s and a Type 13 radar. also received a number of Type 93 13mm machine guns.


Operational history

The ''Yūgumo'' class were considered elite units and always assigned to escort primary fleet units. They were all lost during the Pacific War.


Ships in class


Notes


References

* * * * * '', History of Pacific War Vol.51 The truth of Imperial Japanese Vessels Histories 2'',
Gakken is a Japanese publishing company founded in 1947 by Hideto Furuoka, which also produces educational toys. Their annual sales is reported at ¥ 90 billion ($789 million US). Gakken publishes educational books and magazines and produces other ...
(Japan), August 2005, * ''Collection of writings by Sizuo Fukui Vol.5, Stories of Japanese Destroyers'', Kōjinsha (Japan) 1993, * ''Model Art Extra No.340, Drawings of Imperial Japanese Naval Vessels Part-1'', Model Art Co. Ltd. (Japan), October 1989, Book code 08734-10 * ''The Maru Special, Japanese Naval Vessels No.41 Japanese Destroyers I'', Ushio Shobō (Japan), July 1980, Book code 68343-42


External links

* http://www.combinedfleet.com/yugumo_n.htm {{DEFAULTSORT:Yugumo Class Destroyer Destroyer classes