From War Thunder Wiki
Jump to: navigation, search
Rank VI USA | Premium | Golden Eagles
A-10A Thunderbolt (Early)
This page is about the Japanese fighter N1K1. For other versions, see N1K (Family).
GarageImage N1K1.jpg
ArtImage N1K1.png
2.7 2.3 2.7
Research:9 200 Specs-Card-Exp.png
Purchase:22 000 Specs-Card-Lion.png
Show in game


The N1K1 Kyofu is a rank II Japanese hydroplane fighter with a battle rating of 2.7 (AB/SB) and 2.3 (RB). It was introduced in Update 1.65 "Way of the Samurai".

The Allied reporting name for this aircraft was "Rex".

The N1K1 can be a great low rank fighter. Even though its flight characteristics may seem poor at first, there are several ways you can improve them on the battlefield.

General info

Flight performance

Max speed
at 6 000 m489 km/h
Turn time19 s
Max altitude10 000 m
EngineMitsubishi Kasei 14
Cooling systemAir
Take-off weight4 t

The N1K1 doesn't have great flight characteristics. With an average turn time and rate of climb, it can struggle against other planes at its BR.

Characteristics Max Speed
(km/h at 6,000 m)
Max altitude
Turn time
Rate of climb
Take-off run
Stock 473 462 10000 19.9 20.6 11.5 11.5 500
Upgraded 507 489 18.1 19.0 19.2 14.9


Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
0 600 394 387 350 ~7 ~7
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 430 < 300 < 400 > 324
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
1,600 m 1,440 hp 1,607 hp
Setting 2
Optimal altitude 100% Engine power WEP Engine power
5,000 m 1,280 hp 1,428 hp

Survivability and armour

Crew1 person
Speed of destruction
Structural0 km/h
Gear600 km/h

The survivability of the N1K1 is typical of Japanese planes and not to be relied on. With non-effective self-sealing fuel tanks, it won't survive many shots, especially if it catches on fire.

Modifications and economy

Repair costBasic → Reference
AB530 → 670 Sl icon.png
RB970 → 1 228 Sl icon.png
SB980 → 1 240 Sl icon.png
Total cost of modifications8 390 Rp icon.png
16 200 Sl icon.png
Talisman cost640 Ge icon.png
Crew training6 300 Sl icon.png
Experts22 000 Sl icon.png
Aces180 Ge icon.png
Research Aces190 000 Rp icon.png
Reward for battleAB / RB / SB
30 / 90 / 230 % Sl icon.png
118 / 118 / 118 % Rp icon.png
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
560 Rp icon.png
1 100 Sl icon.png
90 Ge icon.png
Mods radiator.png
560 Rp icon.png
1 100 Sl icon.png
90 Ge icon.png
Mods compressor.png
470 Rp icon.png
900 Sl icon.png
80 Ge icon.png
Mods aerodinamic wing.png
Wings repair
700 Rp icon.png
1 300 Sl icon.png
110 Ge icon.png
Mods new engine.png
700 Rp icon.png
1 300 Sl icon.png
110 Ge icon.png
Mods metanol.png
Engine injection
910 Rp icon.png
1 800 Sl icon.png
150 Ge icon.png
Mods armor frame.png
470 Rp icon.png
900 Sl icon.png
80 Ge icon.png
Mods armor cover.png
910 Rp icon.png
1 800 Sl icon.png
150 Ge icon.png
Mods ammo.png
560 Rp icon.png
1 100 Sl icon.png
90 Ge icon.png
Mod arrow 0.png
Mods weapon.png
470 Rp icon.png
900 Sl icon.png
80 Ge icon.png
Mods pilon bomb.png
9 in (mod30)
470 Rp icon.png
900 Sl icon.png
80 Ge icon.png
Mods ammo.png
700 Rp icon.png
1 300 Sl icon.png
110 Ge icon.png
Mod arrow 0.png
Mods weapon.png
910 Rp icon.png
1 800 Sl icon.png
150 Ge icon.png


Offensive armament

Ammunition200 rounds
Fire rate516 shots/min
Ammunition1 100 rounds
Fire rate900 shots/min

The N1K1 is armed with:

  • 2 x 20 mm Type 99 Model 1 navy cannons, wing-mounted (100 rpg = 200 total)
  • 2 x 7.7 mm Type 97 navy machine guns, nose-mounted (550 rpg = 1,100 total)

Suspended armament

List of setups (1)
Setup 12 x 60 kg Navy Type 97 Number 6 ground bomb
Main article: Type 97 No.6 (60 kg)

The N1K1 can be outfitted with the following ordnance:

  • Without load
  • 2 x 60 kg Navy Type 97 Number 6 bombs (120 kg total)

Usage in battles

The N1K1, though adequate for most situations, can be a pretty difficult aircraft to master. Its poor turn times and climb rates can make you vulnerable at low altitude.

If someone is to use this aircraft in battle, he must take advantage of his guns. They can be pretty powerful, so boom-and-zoom attacks would be recommended. You should avoid turn-fights, especially with British aircraft, though you should be able to out-turn some German aircraft.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Controllable
Not auto controlled
Not auto controlled
Not auto controlled
Separate Controllable
2 gears
Not controllable

Pros and cons


  • Centre float can protect the plane from attacks from below.
  • You can ram other planes with the float (esp. the wings).
  • Can be a great boom-and-zoom aircraft.
  • Self-sealing fuel tanks and armour, a feature not found on many low-rank Japanese aircraft.
  • Powerful 20 mm cannons.
  • Can be used to capture the base in Naval Battles.
  • More ammo for the cannons compared to the A6M2 (200 vs 120).
  • Accelerates very fast in a dive, and retains the speed created in a dive for quite a while.


  • Generally weak airframe as with other Japanese planes.
  • Poor climb-rate and turn time.
  • Most of its fuel were in the central float, can be easily sets on fire and losing it for performance greatly reduces its flight time.
  • Impossible to land on an airfield due to floatplane configuration, also cannot do fast landing on the water (with speed above 160 km/h) as the floats will break and causing the plane to sink.
  • Average acceleration and top speed can make you vulnerable.
  • 7.7 mm machine guns overheat easily.
  • Long takeoff run on the water.


Main article: History of the N1K


With the start of the Sino-Japanese war, the navy required a new line of planes for the southern expansion. One of these required planes by the navy was a fighter seaplane. Before World War I, it was not uncommon for seaplanes to play a central role in combat missions, but closing into World War II seaplanes were usually only used for observation and reconnaissance missions.

This plane was thought to be needed as some islands simply didn't have enough place for an airfield and were too trivial to send aircraft carriers towards. Which at the time of the Japanese situation seemed like a proper investment.

In September of 1940 the Imperial Japanese Navy instructed Kawanishi, who were quite experienced in developing seaplanes, to make a prototype plane under the name of 15-Shi Seaplane Fighter.

The chief design engineer appointed for this specification was Shizuo Kikuhara, who also worked on the H8K2. Kikuhara and his team were up to quite a task as comparing this specification to the A6M2 mod. 11 that was just put into service in China. The speed exceeded by 30 knots, cruising range was two-thirds, armament was equal.

Simply put, the team was required to make a seaplane with the same performance as of the new main fighter and particularly the speed requirement was almost unrealizable for a seaplane (in 1940) let alone a interceptor like the Raiden which its prototype (J2M1) barely had a top speed of 578 km/h.

The maximum speed of the first completed prototype N1K missed the requirement by nearly 100 km/h, but Shizuo Kikuhara and his team would put all their technical efforts to achieve the requirement.

Nakajima also made a seaplane fighter of their own as temporarily bridge for the N1K until it actually entered service. This seaplane was simply making use of the new A6M2 mod. 11, making it more waterproof and adding pontoons on it. The A6M2-N would be adopted as the Type 2 seaplane fighter on July 6, 1942.

After alot of development and trail time the N1K1 with a Kasei 13 engine would finally be adopted as the Kyōfū in December 21, 1943.

But during its adoption, the Americans already were waging a victory in the Solomon islands and the need for a seaplane fighter was no longer needed as Japan was on the defensive now.


Some Kyōfū's were based in Indonesia and were used as a interceptor of bombers with the use of aerial bombs that would detonate after a short time attempting to bomb American bombers such as B-24/PB4Y's and B-29's.

Other Kyōfū's were stationed in the mainland, primarly at Sasebo Air Group and the Otsu Air Group but have almost no record of battle.

In the end, the Kyōfū was little too late as its stopgap replacement, the A6M2-N, primarily filled its role. However this indirectly opened its way to evolve in the Shiden.



See also

Aircraft of comparable role, configuration and era

External links

Kawanishi Aircraft Company
Fighters  N1K1-Ja · N1K2-J · N1K2-Ja
Hydro-Fighter  N1K1
Bombers  H6K4 · H8K2 · H8K3
Recon  E7K2

Japan fighters
Carrier-based fighter 
A5M  A5M4 · Hagiri's A5M4
A6M  A6M2 mod. 11 · A6M2 · A6M3 · A6M3 mod. 22 · A6M3 mod. 22Ko · A6M5 · A6M5 Ko · A6M5 otsu · A6M5 Hei · A6M6c
A7He  A7He1*
A7M  A7M1 (NK9H) · A7M2
Land-based Fighter 
J2M  J2M2 · J2M3 · J2M4 Kai · J2M5 · J2M5 (30 mm)
J6K  J6K1
J7W  J7W1
N1K-J  N1K1-Ja · N1K2-J · N1K2-Ja
Fighter seaplane 
N1K  N1K1
A6M-N  A6M2-N
Ki-10  Ki-10-I · Ki-10-I C · Ki-10-II · Ki-10-II C
Ki-27  Ki-27 otsu · Ki-27 otsu Tachiarai
Ki-43  Ki-43-I · Ki-43-II · Ki-43-III otsu
Ki-44  Ki-44-I · Ki-44-I 34 · Ki-44-II otsu · Ki-44-II hei
Ki-61  Ki-61-I ko · Ki-61-I otsu · Ki-61-I hei · Ki-61-I hei Tada's · Ki-61-I tei · Ki-61-II Kai
Ki-84  Ki-84 ko · Ki-84 otsu · Ki-84 hei
Ki-87  Ki-87
Ki-94  Ki-94-II
Ki-100  Ki-100 · Ki-100-II
Other countries  ▅F4U-1A · ▅P-51C-11-NT · ▅Bf 109 E-7 · ▅Fw 190 A-5
  *Imported designation of the He 112 (A6M was in development - A7M would take A7 designation after the cancelation of the A7He)