|This page is about the Japanese fighter Ki-84 ko. For other versions, see Ki-84 (Family).|
The Ki-84 ko Hayate is a rank IV Japanese fighter with a battle rating of 4.7 (AB), 5.3 (RB), and 5.0 (SB). It was introduced in Update 1.37.
The Ki-84 ko is the first truly fast aeroplane in the Japanese tech tree. Equipped with a 2,000 hp engine, this aircraft's performance is on par with that of the legendary P-51 Mustang. However, unlike the Mustang, the Ki-84 has slightly better turning characteristics and climb rate thanks to its lighter weight. This being said, the Ki-84 also has good energy retention, so try to make your opponent bleed energy to have an edge. The Ki-84 was also one of the first mass-produced Japanese aircraft to come equipped with armoured glass, armour plates and self-sealing fuel tanks, but the armour is still lacklustre compared to its Russian and American counterparts. However, as always, not everything is perfect. The aircraft controls stiffen significantly at speeds above 630 km/h, making even slight adjustments to heading impossible. Thus, at higher speeds, its elevator suffers. The Ki-84 also suffers a lot when no modules are researched, making the aircraft almost useless until modifications are unlocked.
This aircraft should be played as it appears: a lightweight Japanese version of the Mustang, retaining good engine performance, decent climb-rate, high diving performance, but relatively lacklustre armament.
|Characteristics|| Max Speed
(km/h at 6,000 m)
| Max altitude
| Turn time
| Rate of climb
| Take-off run|
|Combat flaps||Take-off flaps||Landing flaps||Air brakes||Arrestor gear|
|Wings (km/h)||Gear (km/h)||Flaps (km/h)||Max Static G|
|Optimal velocities (km/h)|
|< 400||< 480||< 430||> 324|
|Compressor||Optimal altitude||100% Engine power||WEP Engine power|
|Setting 1||2,000 m||1,875 hp||2,100 hp|
|Setting 2||5,300 m||1,675 hp||1,876 hp|
Survivability and armour
- 70 mm Bulletproof glass in cockpit front.
- 6-13 mm Steel plate in pilot's seat.
The Ki-84 ko is armed with:
- 2 x 20 mm Ho-5 cannons, wing-mounted (150 rpg = 300 total)
- 2 x 12.7 mm Ho-103 machine guns, nose-mounted (350 rpg = 700 total)
The Ki-84 ko can be outfitted with the following ordnance:
- Without load
- 2 x 50 kg Army Type 94 GPHE bombs (100 kg total)
- 2 x 250 kg Army Type 92 GPHE bombs (500 kg total)
Usage in battles
The Ki-84 ko is a very good multi-purpose fighter, its capable of energy fighting and sustained dog fighting making it a menace to face with few enemies matching it, it takes a rather skilled pilot to shake these off as they have great turn fighting capabilities, good climb rate and a decent top speed for their BR.
It is important to remember that when uptiered, you will be fighting aircraft such as the Spitfire F Mk 22, which is faster both in a straight line and in a shallow or step dive, the best way to reliable deal with this threat is to coax your enemy into a rolling scissors or sustained dog fight as the Spitfire F Mk 22 does not have a faster turn rate than the Ki-84 ko, alternatively if they do not dog fight and they are above you, you can force an over-shoot with some defensive flying and catch the Spitfire either as it passes or when it starts to go back up into its climb thanks to the Ki-84 ko's good climb rate.
The Ki-84 ko is not very well armoured at all and should avoid any head on engagements or well defended aircraft such as B-24's as it is rather fragile to enemy fire. The weaponry isn't spectacular either and may require a bit of practice as they are rather lack luster compared to other planes you will fight.
As a Ki-84 pilot your safest bet is to climb above your opponents and pick and choose your battles, often a good strategy to use is to hunt down the highest altitude enemies and pick them off one by one, remember not to waste all the altitude you have obtained as altitude is your friend in the Ki-84, whether you prefer Boom and Zoom or Dogfighting, the Ki-84 ko is sure to please you.
Manual Engine Control
Not auto controlled
Not auto controlled
Not auto controlled
|I||Fuselage repair||Radiator||Offensive 12 mm||9 in (mod23)|
|II||Compressor||Airframe||New 12 mm MGs||12 in (mod27)|
|III||Wings repair||Engine||Offensive 20 mm|
|IV||Engine injection||Cover||New 20 mm cannons|
Pros and cons
- Incredible rate of climb
- Good top speed
- Great acceleration
- Good performance at altitude
- Much better dive speed than the earlier Ki-61 series
- Good manoeuvrability at lower speeds
- Good energy retention
- Lower maximum dive speed than its American counterparts
- Unspectacular weaponry
- Somewhat vulnerable to damage
- Elevator locks up at high speeds
Describe the history of the creation and combat usage of the aircraft in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the
main template. Be sure to reference text and sources by using
<ref></ref>, as well as adding them at the end of the article with
<references />. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under
=== In-game description ===, also if applicable).
Excellent additions to the article would be video guides, screenshots from the game, and photos.
Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:
- reference to the series of the aircraft;
- links to approximate analogues of other nations and research trees.
Paste links to sources and external resources, such as:
- topic on the official game forum;
- encyclopedia page on the aircraft;
- other literature.
|Nakajima Aircraft Company ()|
|Fighters||Ki-27 otsu · Ki-27 otsu Tachiarai|
|Ki-43-I · Ki-43-II · Ki-43-III otsu|
|Ki-44-I · Ki-44-I 34 · Ki-44-II otsu · Ki-44-II hei|
|Ki-84 ko · Ki-84 otsu · Ki-84 hei|
|Interceptors||J1N1 · J5N1|
|B6N1 Model 11 · B6N2 Model 12 · B6N2a Model 12Ko|
|G5N1 · G8N1|
|Ki-49-I · Ki-49-IIa · Ki-49-IIb · Ki-49-IIb/L|
|Captured||␗Ki-27 otsu · ▃Ki-43-II · ␗Ki-43-III ko · ␗Ki-44-II hei · ␗Ki-84 ko|
|*Refit of the Mitsubishi A6M2 mod. 11|
|See also||Fuji Heavy Industries (1957-2017)|
|A5M||A5M4 · Hagiri's A5M4|
|A6M||A6M2 mod. 11 · A6M2 · A6M3 · A6M3 mod. 22 · A6M3 mod. 22Ko · A6M5 · A6M5 Ko · A6M5 otsu|
|A7M||A7M1 (NK9H) · A7M2|
|J2M||J2M2 · J2M3 · J2M4 Kai · J2M5 · J2M5 (30 mm)|
|N1K-J||N1K1-Ja · N1K2-J · N1K2-Ja|
|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|
|Ki-84||Ki-84 ko · Ki-84 otsu · Ki-84 hei|
|Ki-100||Ki-100 · Ki-100-II|
|Other countries||▅F4U-1A · ▅Bf 109 E-7 · ▅Fw 190 A-5|
|*Imported designation of the He 112 (A6M was in development - A7M wasn't heard of yet)|