IJN Kurama

IJN Kurama

IJN Kurama

Japan

V Rank

Battle rating:

AB	RB	SB
5.7	5.7	5.7

Class:

Battlecruiser

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Description

The Kurama-class, IJN Kurama, 1920 (鞍馬, namesake: Mount Kurama), was the final vessel constructed within its class, which comprised two armoured cruisers. These ships were originally ordered for service during the Russo-Japanese War of 1904-1905. Designed to carry armament comparable to battleships and to operate alongside them despite a lower displacement, their construction was overshadowed by the prioritization of the Kawachi-class and the repair/reconstruction of ex-Russian vessels captured at Tsushima. It wasn't until 1911 that both ships were finally commissioned, by which time they were already outdated compared to the emerging battlecruiser class, offering superior speeds and armament. Following their belated commissioning, these cruisers found themselves participating in various ceremonial events. For instance, Kurama attended the Coronation of King George V and accompanied fleet review in 1914. Subsequently, during World War I, she served as an Allied vessel, safeguarding Allied merchant shipping in the South Pacific and supporting landings on German-occupied Caroline and Mariana Islands. In the 1920s, Kurama was assigned to the northern fleet, where she played a role in covering the landings of Japanese troops in Russia during the Siberian Intervention, providing support to White Russian forces. However, the fate of the Kurama-class was sealed by the Washington Naval Treaty, which mandated their scrapping.

It was introduced during Update "Sons of Attila" as a reward for the 2023 Tokushu Heiki event. As an Armoured Cruiser predating WWI, Kurama offers the firepower and speed akin to battleships, albeit with the armor profile of a heavy cruiser. Due to her age, she primarily contends with Light and Heavy cruisers from the WWI to WWII era. Equipped with an array of formidable guns, Kurama can effectively engage both destroyers and cruisers, with her main batteries possessing the capability to pose a threat even to battleships. This positions her best at the rear of the fleet, where she can provide support to other vessels and engage enemy ships from a distance. Despite her impressive offensive capabilities, Kurama is hindered by her slow speed and relatively weak armor. Additionally, a notable drawback is her lack of anti-aircraft defenses. Reflecting her 1920s configuration, which predates the recognition of the importance of aerial power, Kurama is outfitted with only 76 mm and 47 mm cannons for AA-defense, leaving her vulnerable to aerial attacks.

General info

Survivability and armour

Armourfront / side / back

Citadel38 / 178 / 38 mm

Main fire tower229 / 152 / 229 mm

Hull25 mm (steel)

Superstructure16 mm (steel)

Number of section8

Displacement15 595 t

Crew871 people

Talk about the vehicle's armour. Note the most well-defended and most vulnerable zones, e.g. the ammo magazine. Evaluate the composition of components and assemblies responsible for movement and manoeuvrability. Evaluate the survivability of the primary and secondary armaments separately. Don't forget to mention the size of the crew, which plays an important role in fleet mechanics. Save tips on preserving survivability for the "Usage in battles" section. If necessary, use a graphical template to show the most well-protected or most vulnerable points in the armour.

Mobility

Speedforward / back

AB46 / 25 km/h

RB40 / 22 km/h

Write about the ship's mobility. Evaluate its power and manoeuvrability, rudder rerouting speed, stopping speed at full tilt, with its maximum forward and reverse speed.

Mobility Characteristics
Game Mode	Upgrade Status	Maximum Speed (km/h)		Turn Time (s)	Turn Radius (m)
		Forward	Reverse
AB	Stock	___	___
	Upgraded	46	25
RB/SB	Stock	___	___
	Upgraded	40	22

Modifications and economy

Repair costBasic → Reference

AB17 007 → 21 360

RB22 424 → 28 164

Total cost of modifications131 200

211 500

Talisman cost1 900

Crew training105 000

Experts360 000

Aces1 400

Research Aces620 000

Reward for battleAB / RB / SB

450 / 600 / 100 %

184 / 184 / 184 %

Modifications

Seakeeping	Unsinkability	Firepower
Dry-Docking Research: 5 300 Cost: 8 500 185 Rudder Replacement Research: 9 900 Cost: 16 000 350 Propeller Replacement Research: 6 600 Cost: 11 000 230 Engine Maintenance Research: 14 000 Cost: 22 000 490	Damage Control Division Research: 5 300 Cost: 8 500 185 Fire Division Research: 9 900 Cost: 16 000 350 Shrapnel Protection Research: 6 600 Cost: 11 000 230 Ventilation Research: 6 600 Cost: 11 000 230 New Pumps Research: 14 000 Cost: 22 000 490 Ammo Wetting Research: 14 000 Cost: 22 000 490	Anti-Air Armament Targeting Research: 5 300 Cost: 8 500 185 305mm_jp_50_41st_yt_navy_apc_ammo_pack Research: 5 300 Cost: 8 500 185 203 mm Type 3 AP Research: 5 300 Cost: 8 500 185 Auxiliary Armament Targeting Research: 9 900 Cost: 16 000 350 Primary Armament Targeting Research: 6 600 Cost: 11 000 230 Improved Rangefinder Research: 6 600 Cost: 11 000 230

Armament

Primary armament

2 х Turret2 x 12-inch/45 Vickers cannon

Ammunition160 rounds

Vertical guidance-3° / 23°

Provide information about the characteristics of the primary armament. Evaluate their efficacy in battle based on their reload speed, ballistics and the capacity of their shells. Add a link to the main article about the weapon: {{main|Weapon name (calibre)}}. Broadly describe the ammunition available for the primary armament, and provide recommendations on how to use it and which ammunition to choose.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
12-inch/45 HE	HE	69	69	69	69	69	69
12-inch/45 APC	APC	496	432	345	278	229	172

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
12-inch/45 HE	HE	825	400.06	0	0.1	37.82	79°	80°	81°
12-inch/45 APC	APC	825	400.06	0.035	17	13.64	48°	63°	71°

Secondary armament

4 х Turret2 x 20 cm/45 Type 41 cannonn

Ammunition200 rounds

14 х Turret4,7-inch/40 Armstrong cannon

Ammunition150 rounds

Some ships are fitted with weapons of various calibres. Secondary armaments are defined as weapons chosen with the control Select secondary weapon. Evaluate the secondary armaments and give advice on how to use them. Describe the ammunition available for the secondary armament. Provide recommendations on how to use them and which ammunition to choose. Remember that any anti-air armament, even heavy calibre weapons, belong in the next section. If there is no secondary armament, remove this section.

Penetration statistics
Ammunition	Type of warhead	Penetration @ 0° Angle of Attack (mm)
		1,000 m	2,500 m	5,000 m	7,500 m	10,000 m	15,000 m
200 mm Type 3 HE common	HE	63	63	63	63	63	63
200 mm Type 3 APC	APC	291	241	178	134	105	86

Shell details
Ammunition	Type of warhead	Velocity (m/s)	Projectile mass (kg)	Fuse delay (s)	Fuse sensitivity (mm)	Explosive mass (TNT equivalent) (kg)	Ricochet
							0%	50%	100%
200 mm Type 3 HE common	HE	790	115.3	0	0.1	11.25	79°	80°	81°
200 mm Type 3 APC	APC	790	115.3	0.03	9	3.49	48°	63°	71°

Anti-aircraft armament

4 х Turret3-inch/40 Type 41 cannon

Ammunition150 rounds

4 х Turret8 cm/40 3rd Year Type cannon

Ammunition400 rounds

4 х Turret3 pdr QF Hotchkiss cannon

Ammunition300 rounds

An important part of the ship's armament responsible for air defence. Anti-aircraft armament is defined by the weapon chosen with the control Select anti-aircraft weapons. Talk about the ship's anti-air cannons and machine guns, the number of guns and their positions, their effective range, and about their overall effectiveness – including against surface targets. If there are no anti-aircraft armaments, remove this section.

Additional armament

Setup 15 x 18 inch Type 38 No.2 B torpedo

Like many larger ships before and during World War I, internal torpedo tubes were installed on the ship, primarily as supplementary armament for close-range combat against enemy vessels.

However, these should not be utilized under normal circumstances. They are intended for use only in the event of a dire situation where engagement ranges are extremely close and guns inoperational, a scenario which ideally the captain of a Kurama would seek to avoid. The torpedo tubes are best left empty as they are unlikely to see much use to begin with, or they could be kept in reserve in case the Kurama frequently finds itself under attack by destroyers rushing its position.

Usage in battles

Utilizing the Kurama effectively requires a nuanced understanding of its strengths and weaknesses. With its formidable 305mm cannons, the Kurama excels at both leading assaults and providing support, depending on the situation at hand.

When facing lighter targets such as destroyers and cruisers, the Kurama's main guns can devastate them with high-explosive (HE) rounds. Meanwhile, its secondaries provide continuous fire, ensuring sustained pressure on the enemy. A strategic approach involves loading HE in the main guns for maximum damage to lightly armored foes, while reserving armor-piercing (AP) rounds for the secondaries to deal with closer-range engagements.

However, the Kurama's lackluster armor makes it vulnerable to ships with heavier armaments. To mitigate this risk, maintaining distance from battleships and battlecruisers is crucial. Attempting to rush these formidable adversaries would likely result in swift defeat due to the Kurama's poor armor and mobility. Instead, adopting a sniping approach by utilizing the main guns from a safe distance and bombarding them with secondary armaments proves more effective.

Furthermore, given the Kurama's deficient anti-aircraft defense, sticking close to teammates is advisable. This allows for mutual support and protection against aerial threats, compensating for the Kurama's vulnerability in this aspect. By understanding and leveraging these tactics, players can maximize the Kurama's potential on the battlefield, ensuring its effectiveness in combat scenarios.

Pros and cons

Pros:

• Effective main armament
• Biggest secondary armament of any ships (Bigger than some heavy cruisers main armament)
• Secondaries have fast reload speed
• Combined usage of main and secondary armament makes for a deadly combination
• Often underestimated because of WWI looks

Cons:

• Below average armour
• Overall poor mobility
• Secondaries turrets are easily taken out
• Slow turret traverse
• Ineffective AA armament (only good for slow moving targets)

History

Construction

In 1904, the temporary military budget for the Russo-Japanese War was sanctioned. By January 31, 1905, construction orders were dispatched to Yokosuka. By June 11 of that year, the Imperial Japanese Navy provisionally christened the armored cruiser as "Kurama" (initially slated to be named Ibuki). On August 23, the construction of the armored cruiser Kurama commenced at the Yokosuka Naval Arsenal. Then, on October 21, 1907, precisely at 3:07 p.m. (from the third slipway), the ship was launched, graced by the presence of Emperor Meiji and Empress Haruko (later Empress Dowager Shōken) at the launch ceremony. Weighing in at 6,380 British tons, Kurama smoothly entered the waters of Yokosuka, marking a successful launch. Simultaneously, the armored cruiser was formally christened as "Kurama" and classified as a first-class cruiser (armoured cruiser). By February 28, 1911, construction was completed. Initially designed to be a fast vessel with firepower rivaling that of the Katori-class battleships, Kurama found itself outdated upon launch due to the emergence of dreadnoughts and battlecruisers. On March 1 of the same year, she was integrated into the Second Fleet.

Usage

Pre-War

Mission to Britain

Immediately after being commissioned, Kurama, accompanied by the second-class cruiser Tone (a protected cruiser built in 1907), embarked to Britain under the command of Vice Admiral Hayao Shimamura. There they partook in the coronation fleet review of King George V. In late March 1911, Vice Admiral Shimamura and the crews of Kurama and Tone were granted an audience with Emperor Meiji. Setting sail on April 1 from Yokosuka, the two cruisers participated in the fleet review at Spithead on June 24. Subsequently, on either November 12 or 22, they returned to Yokosuka. By December 1, She was withdrawn from the 2nd Fleet.

After

• Feb. 20, 1912: 3-inch guns on top of the main gun turrets were added.
• Aug. 28, 1912: The IJN revised the classification table for naval vessels. Four ships, including Kurama, were reclassified as battlecruisers.
• Dec. 1, 1912: Assigned into the 1st Fleet.
  • Feb. 10, 1913: 1st Fleet stationed in Takao, Japanese-Taiwan conducted naval patrols in the southern Qingdao area.

World War 1

• Aug. 18, 1914: Assigned to the 1st Fleet, 3rd Squadron (Kongō, Hiei, Kurama, Tsukuba) - Conducted patrols in the East China Sea
• Aug. 23, 1914: Japan declares war on Germany, joining World War I

On September 14, the 1st Southern Expeditionary Unit was formed with Kurama as the flagship, accompanied by Tsukuba, Asama, the 16th Destroyer Flotilla (Umikaze, Yamakaze), Nankai Maru, and Enkai Maru. Departing from Futami Port on September 17, they engaged in merchant convoy protection and provided support for the landings of the German-held Mariana and Caroline Islands. They returned to Yokosuka Naval Base on January 17 of the following year.

• May 4, 1915: Bilge keel modification was ordered to be outfitted while in service and when out combat
• May 7, 1915: Patrols around the Yangtze River area
• Sep. 8, 1915: Bilge keel trail run after modification
• Dec. 13, 1915: Assigned to the 1st Fleet, 2nd Squadron (Kurama, Ikoma) - Subsequently assigned as flagship on the 15th
  • Dec. 1, 1916: Removed from the 2nd Squadron
• Jul. 23, 1917: Major maintenance scheduled at Kure - Engine inspection, extension of the bilge keel and other repairs
  • March 1918: Maintenance over
• Apr. 1, 1918: Assigned to the 3rd Fleet, 5th Squadron
  • May 18, 1918: While out on gunnery training, Kurama hit an uncharted reef damaging her starboard bilge keel, hull rivets and a breach of 15 cm wide flooding the double bottom, emergency repairs were conducted at the Chinkai Guard District with further repairs scheduled in Sasebo.
  • July 25, 1918: While undergoing repairs, removed from the 5th Squadron
• Dec. 1, 1918: Reassigned to the 3rd Fleet, 5th Squadron (Kurama, Ibuki, Mikasa)

Siberian intervention

The Siberian Intervention, from a Japanese perspective, was Japan's military involvement in Siberia from 1918 to 1922 during the aftermath of the Russian Revolution. Japan, along with several other Allied nations, sent troops to intervene in the Russian Civil War with the goal of securing economic and strategic interests in the region. The Japanese forces primarily aimed to safeguard the Trans-Siberian Railway, protect Japanese nationals, and counter Bolshevik influence. Despite initial successes, the intervention faced logistical challenges, diplomatic tensions, and opposition from local Bolshevik forces. Japan gradually withdrew its troops from Siberia by 1922, with the intervention ultimately having mixed results and implications for Japan's foreign policy in the region.

Kurama was assigned to support during the whole intervention and sailed along the Russian coast.

• Sep.-Oct., 1919: Two 40 cm signal searchlights installed at Sasebo
• Dec. 1, 1920: Removed from the 3rd Fleet, 5th Squadron - This would be the last time assigned to a fleet

Washington Naval Treaty

In late 1921, as the political aftermath of World War I drew to a close and concerns over a potential naval arms race mounted among major powers, discussions for the Washington Naval Treaty commenced. This multilateral agreement, signed in 1922, involved key naval players such as the United States, United Kingdom, Japan, France, and Italy. Its primary objective was to curb naval armaments and forestall an escalation of military tensions by introducing disarmament ratios and limitations on specific types of warships. Among its significant provisions were caps on both the total tonnage and armaments of capital ships, along with constraints on the construction of new capital ships and aircraft carriers. Representing a concerted effort to preserve peace and stability in the aftermath of World War I, the treaty sought to diminish the naval capabilities of participating nations while advocating for arms control measures.

The Kurama-class, like many other ships, was destined to be decommissioned in accordance with the Treaty, expelled from the naval register on September 20, 1923. Her armament was removed at the Sasebo Naval Arsenal, followed by torpedo tubes, and finally her boilers. On January 19, 1925, the hulk of Kurama was demolished and scrapped by Kobe Steel Works.

Media

Skins

• Skins and camouflages for the IJN Kurama from live.warthunder.com.

See also

Links to articles on the War Thunder Wiki that you think will be useful for the reader, for example:

• reference to the series of the ship;
• links to approximate analogues of other nations and research trees.

External links

• [Devblog] Tokushu Heiki: Battlecruiser Kurama

Yokosuka Naval Arsenal (横須賀海軍工廠)
Destroyers (DD)
Momi-class	IJN Momi
Light Cruisers (CL)
Mogami-class	IJN Suzuya
Heavy Cruisers (CA)
Myōkō-class	IJN Myoko
Battlecruisers (BC)
Kurama-class	IJN Kurama
Amagi-class	IJN Amagi
Battleships (BB)
Fusō-class	IJN Yamashiro
Nagato-class	IJN Mutsu
Tanks	Ka-Mi · Ka-Chi · Chi-Ha LG
See also	Yokosuka Naval Air Technical Arsenal

Japan battlecruisers
Tsukuba-class	IJN Ikoma
Kurama-class	IJN Kurama
Amagi-class	IJN Amagi