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Shiden Kai 2

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Violet Lightning Mk.2
No.55 紫電改二
GreenPlane.png Carrier-based Fighter Aircraft
Effects: AA+9 Evasion+3
Combat Radius: 3 (Deployment Cost: Bauxite 6)
Scrap value: Fuel 2 Ammo 2 Bauxite 7 (Buildable)

Equipment Card Shiden Kai 2.png

Equipment Character Shiden Kai 2.png

Equipment Item Shiden Kai 2.png

Equipment Full Shiden Kai 2.png

Refittable Ship Types
Fast Battleship Battleship
Aviation Battleship Standard Aircraft Carrier
Armored Carrier Light Carrier
Heavy Cruiser Aviation Cruiser
Light Cruiser Torpedo Cruiser
Training Cruiser Destroyer
Coastal Defense Ship Submarine
Aircraft Carrying Submarine Seaplane Tender
Fleet Oiler Submarine Tender
Repair Ship Amphibious Assault Ship
LBAS Plane



The carrier-based variant of the trump card of mainland air defense, a domestically designed fighter, "Shiden Kai".
Intended to fill the gap left by the delays in development and deployment of the "Reppuu", its excellent dogfighting capability is due to its high-powered engine and air-flaps.
Even if the dawn that the aircraft carrier Shinano was in service, equipped with Reppuu and Reppu Kai is but a faraway vision...
This is the last of the carrier-based fighters that was real.


FightersFighterNight Fighter/Night Fighter are one of the main types of plane used by CV(B/L). Their main role is to bring Air Power during the 1st Aerial Stage, with their "Fighter Power" Anti-Air stat being the most important factor in this regard. Fighters are additionally needed for Aircraft Carrier Cut-Ins (CVCI) during the day Shelling.


Not to be confused with other aircraft of this family (see here).

How To Obtain


Base craft recipe Fuel20 Ammunition20 Steel10 Bauxite70 AviationShips with special crafting will have
reduced rates of other specific equipment
Especially Akitsu MaruAkitsu Maru & Shinshuu MaruShinshuu Maru
Secretary: Category Aviation
Ship Types included:

From quest: B110 (x2, choice), B119 (x2, choice), Fq5 (x2)

From limited-time quest: 5A01 (x2, choice), SB24 (x2, choice), SB29 (x3, choice), Su04 (x2, choice), 2304 B3 (★+8, choice), 2312 B2 (★+7, choice)


Used to improve: Shiden Kai 2Shiden Kai 2, Shiden Kai 4Shiden Kai 4, Shiden Model 11Shiden Model 11, F6F-3F6F-3, F6F-5F6F-5, Kyoufuu KaiKyoufuu Kai, Zuiun Kai Ni (634 Air Group)Zuiun Kai Ni (634 Air Group), Shiden Model 21 Shiden KaiShiden Model 21 Shiden Kai

Used by quest: F46

Updates History

  • 2013-05-08: Added to game data and announced to be obtainable in the future
  • 2013-05-15: Implemented
  • 2015-10-30: Stats increased: Evasion+0 → Evasion+3
  • 2021-09-28: Became improvable and upgradeable to Shiden Kai 4Shiden Kai 4


GreenPlane.png Shiden Kai 2

Improvement Conversion
★ Improvement
0~5 6~9
Equipment Card Shiden Kai 4.png
Shiden Kai 4
Development material Consumed 5/7 8/10 13/20
Improvement material Consumed 4/5 5/7 7/9
Equipment Card Shiden Kai 2.png Equipment Card Shiden Kai 2.pngx2 Equipment Card Prototype Reppuu Late Model.pngx2
- Item Icon New Model Aerial Armament Material.png Item Icon Skilled Crew Member.png
Resources Fuel110 Ammunition160 Steel0 Bauxite330
Ship Helper Conversion
Ship Banner Suzuya Kou Kai Ni.png
Suzuya Kou Kai Ni
Equipment Card Shiden Kai 4.png
Shiden Kai 4
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Noshiro Kai Ni.png
Noshiro Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Yahagi Kai Ni.png
Yahagi Kai Ni
Mon Tue Wed Thu Fri Sat Sun
Ship Banner Sakawa Kai.png
Sakawa Kai
Mon Tue Wed Thu Fri Sat Sun
Yahagi Kai Ni B does not work
Improvement Improved effects
Fighter 1★ 2★ 3★ 4★ 5★ 6★ 7★ 8★ 9★ Max★
Anti-Air 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0


Historical Information

The Kawanishi N1K3-A Model 41 Shiden Kai Ni (Violet Lightning, Modified 2, Allied reporting name "George") was a proposed carrier-based variant of the Kawanishi N1K2-J. The N1K2-J was a land-based version of the Kawanishi N1K Kyōfū (Strong Wind, Allied reporting name "Rex") floatplane fighter. The N1K was the last production line of fighter planes manufactured and flown by the Japanese Navy Air Service. Both its pilots and opponents considered the N1K-Js to be among the finest land-based fighters of Japan.

Its name, 「紫電」- "Violet Lightning", likely refers to the pink lightning phenomenon - a common, more violent, louder, pink or purplish colored storm lightning bolt.

Originally developed as a floatplane fighter for forward-operations support where runways would not be available, the N1K was introduced to service in 1943. However, at that point Japan was no longer on the offensive, depriving the N1K of its intended role. With its heavy floats, it was at a severe disadvantage against contemporary American fighter planes, leading Kawanishi engineers to propose in 1941 to make a land-based fighter based on the N1K.

Produced as a private venture by Kawanishi with the more powerful 1,850 hp Nakajima NK9A Homare 11 engine replacing the Mitsubishi MK4C Kasei 13 engine, the prototype N1K fighter flew in December 1942. It still carried the mid-mounted wing of the original floatplane design, which with its large propeller, required a long, stalky landing gear. It had a unique set of automatic combat flaps that were acceleration-sensitive, reducing the likelihood of a stall in combat. However, it was susceptible to entering an unrecoverable spin if handled roughly, making it extremely dangerous for inexperienced pilots.

The NK9 engine, although powerful, was unrefined due to its rush to production. Aside from the problematic engine, poor heat-treatment of the wheels could cause the landing gear to break off when the fighter attempted to land. It was reported that more N1Ks were lost by landing-gear failures than to Allied forces. Despite these problems, the Kawanishi fighter was deemed promising and subsequently evaluated by the Navy. As it was faster than the Mitsubishi A6M5 (Zero-fighter Model 52) in service at the time, had an even longer range than the Mitsubishi J2M Raiden interceptor and the 17-shi project (the Mitsubishi A7M Reppū) was facing trouble, the prototypes were ordered into production as the N1K1-J. The J suffix indicates a land-based fighter modification, just as a J-prefix indicates a purpose-designed land-based fighter.

The N1K1 entered service in early 1944 and proved highly effective against American fighters, being the only one of its contemporaries that could match its enemies - F6F Hellcats and F4U Corsairs - and even outperform them with the guidance of an ace pilot. Rare for a Japanese fighter was the N1K's resilience, a significant upgrade from the fragile Zero-fighters. Although formidable, the N1K1-Js were still unreliable - both the troublesome NK9 engine and complicated undercarriage frequently failed. Altogether, 1,007 N1K1-Js were produced, including prototypes.

Merely four days after the N1K1-J's first test flight, the N1K2-J's development had begun. This new design resolved the N1K1-J's teething issues, such as the mid-mounted wing and poor landing gear design. The wings were lowered, facilitating a shorter, conventional undercarriage, while the fuselage was longer and the tail redesigned. The N1K2-J was also designed to be substantially easier to produce with just over a third of the parts of the N1K1-J. The Nakajima NK9 engine was retained as no viable alternative was available, despite its still questionable reliability.

The N1K2-J prototype flew on New Year's of 1944 and completed trials from the Imperial Japanese Navy in April 1944. It was subsequently rushed into production as the Shiden Kai and entered service that same year. In February 1945, a group of N1K2-Js encountered seven Hellcats of the U.S. Navy, downing four with no loss.

The N1K2-J was one of the best dogfighters of World War II, boasting both high speed (greater than 650 km/h), incredible agility, and a quartet of 20 mm cannons. Its performance as a bomber interceptor, however, was lackluster - it had a poor rate of climb and reduced engine performance at high altitudes. Production difficulties and bombing raids on factories only allowed a mere 415 N1K2-Js to be produced, placing them in the hands of elite units such as the Navy's 343rd Air Group. It was fielded together with Saiun reconnaissance planes.

Regardless of the Kawanishi fighters' excellence in firepower, agility, and resilience, they were produced too late and in too few numbers to change the favor of the war. It did however spawn several variants, both prototypes, and production, such as the N1K2-Ja Model 21A (a fighter bomber). The prototypes of the planned N1K3-J series had different engine placement and twin 13.2 mm machine guns.

The depicted plane is allegedly the N1K3-A variant, Shiden Kai Ni Model 41 (did not exist/enter service as is). It was a project designed to be a carrier-based version of the aforementioned N1K3-J.

See Also