Ki-21-I hei

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"APACHE" | AH-64A Peten
Ki-21-I hei
General characteristics
5 peopleCrew
7.91 tTake-off weight
Flight characteristics
8600 mCeiling
2 х Nakajima Ha-5Engine
airCooling system
Speed of destruction
540 km/hStructural
380 km/hGear
Defensive armament
2 x 7.7 mm Type 89 machine gun 'special'Turret
900 roundsAmmunition
700 shots/minFire rate
7.7 mm Te-1 machine gun7 х Turret
483 roundsAmmunition
950 shots/minFire rate
Suspended armament
20 x 50 kg Army Type 94 GPHE bombSetup 1
10 x 100 kg Army Type 94 GPHE bombSetup 2
4 x 250 kg Army Type 92 GPHE bombSetup 3
2 x 500 kg Army Type 92 GPHE bombSetup 4
Sl icon.png1100/1700/460Repair
450 Sl icon.pngCrew training
3000 Sl icon.pngExperts
40 Ge icon.pngAces
100 × 2 Talisman.png % Rp icon.pngReward for battle
80 × 2 Talisman.png % Sl icon.png40 × 2 Talisman.png % Sl icon.png20 × 2 Talisman.png % Sl icon.png
This page is about the gift Japanese bomber Ki-21-I hei. For the regular version, see Ki-21-Ia.


GarageImage Ki-21-I hei.jpg

The Ki-21-I hei is a gift rank I Japanese medium bomber with a battle rating of 2.0 (AB) and 1.7 (RB/SB). It was introduced in Update 1.65 "Way of the Samurai" during the 2016 Winter Holiday event.

General info

Flight Performance

Characteristics Max Speed

(km/h at 400 m)

Max altitude


Turn time


Rate of climb


Take-off run


Stock 413 400 8600 14.7 15.3 3.1 3.1 600
Upgraded 453 432 13.6 14.0 9.8 5.9


Combat flap Take-off flap Landing flap Air brakes Arrestor gear
Wing-break speed
Gear limit
Combat flap
Max Static G
+ -
540 380 450 ~7 ~2
Optimal velocities
< 260 < 260 < 260 > 320
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
3,700 m 890 hp 1,080 hp

Survivability and armour

  • No armour
  • Self-sealing fuel tanks (2 in each wing, 2 in the mid-fuselage)


Suspended armament

The Ki-21-I hei can be outfitted with the following ordnance:

  • 20 x 50 kg Army Type 94 GPHE bombs (1,000 kg total)
  • 10 x 100 kg Army Type 94 GPHE bombs (1,000 kg total)
  • 4 x 250 kg Army Type 92 GPHE bombs (1,000 kg total)
  • 2 x 500 kg Army Type 92 GPHE bombs (1,000 kg total)

Defensive armament

The Ki-21-I hei is defended by:

  • 1 x 7.7 mm Type 89 'special' army machine gun x2, dorsal turret (450 rpg = 900 total)
  • 7 x 7.7 mm Te-1 army machine gun (483 rpg = 3381 total)

Usage in battles

The main difference between the Ki-21-Ia and this Ki-21-Ic is armament, 2 x Te-1's compared to 7 x Te-1's which are simply the best 7.7 mm's Japan can offer, with a 950 rpm firerate, API - IT belts in the universal belt which do a lot of damage and covers the whole plane.

If attacked by fighters, it is important to remember and recognize the Ki-21's turning capabilities. It is actually possible to win lateral turn fights against fighters with this aircraft as she is one of the most manoeuvrable bombers if not the most manoeuvrable bomber in game.

This aircraft has the ability to hold up to 1000 kg of bombs in several different variations: 20 x 50 kg, 10 x 100 kg, 4x 250 kg, and 2 x 500 kg. Use the 20 x 50 kg or 10 x 100 kg bombs to attack light tanks and light pillboxes. They are not viable against bigger targets, since direct hits are needed to destroy. This loadout is particularly useful on maps that have an abundance of non-moving targets (light pillboxes) or lightly armoured targets (armoured cars or AA trucks for example). Use either of the 4 x 250 kg or 2 x 500 kg payload to destroy heavier targets such as medium tanks, pillboxes, destroyers, and cargo ships.

Although unconventional, this aircraft is a fantastic weapon if you want to bait the enemy. Ideally, you would want to attract a higher flying enemy down to you and to get into a turn fight. This way, depending on the enemy aircraft you can out manoeuvre and distract him while teammates fly down to finish him off.


Tier Flight performance Survivability Weaponry
I Fuselage repair Radiator Turret 7 mm 12 in (mod30)
II Compressor Airframe New 7 mm MGs (turret)
III Wings repair Engine Turret 7 mm 14 in (mod30)
IV Engine injection Cover New 7 mm MGs (turret)
This is a premium vehicle: all modifications are unlocked on purchase

Pros and cons


  • Very manoeuvrable
  • Extensive bombload for a rank I Japanese bomber
  • Decent cruising speed
  • Durable, can take some hits
  • Above average defensive armament for its BR
  • Internal payload


  • Loses effectiveness with altitude
  • No armour
  • Falls quickly when attacked by multiple foes
  • Head on attacks are usually fatal because of lack of protection for the pilots
  • Gunners can be knocked out easily


About the plane

The first-generation Ki-21, or Ki-21-I Kô (Model IA), was a full-metal monoplane bomber. Its cantilever wing was implanted in the middle position. The crew positions were largely glazed, providing good visibility for the five crewmen. The landing gear included two train legs fitting almost completely into the two engine nacelles, plus a non-retractable tailwheel. The two engines were Nakajima Ha-5 Kai, with unit power of 850 hp (1,000 hp at takeoff), each driving a three-bladed metal propeller with variable pitch. Serial production really began in 1938 in the Mitsubishi and Nakajima factories.

Combat usage

The first available aircraft were engaged in China during Summer 1938, where they were well-received by the crews of the army. The first reports on the commitment of these planes enabled Mitsubishi to make changes, particularly in terms of armaments. This led to the development of new versions, such as Ki-21-Ib (乙, otsu) and finally Ki-21-Ic (丙, hei).


Excellent additions to the article would be video guides, screenshots from the game, and photos.

See also

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.

External links

Paste links to sources and external resources, such as:

  • topic on the official game forum;
  • encyclopedia page on the aircraft;
  • other literature.

Mitsubishi Company (三菱商会)
Fighters  A5M4 · Hagiri's A5M4
  A6M2 mod. 11 · A6M2 · A6M3 · A6M3 mod. 22 · A6M3 mod. 22Ko · A6M5 · A6M5 Ko · A6M5 otsu
  A7M1 (NK9H) · A7M2
  J2M2 · J2M3 · J2M4 Kai · J2M5 · J2M5 (30 mm)
Hydroplanes  F1M2
Interceptors  Ki-83 · Ki-109
Bombers  G4M1
  Ki-21-Ia · Ki-21-I hei · Ki-67-I Ko · Ki-67-I otsu
Jet Fighters  Ki-200
Captured  ▃A6M2 · ␗A6M2
See also  Mitsubishi Heavy Industries (1945+)

Japan bombers
Carrier-based dive bomber 
D3A  D3A1
D4Y  D4Y1 · D4Y2 · D4Y3 Ko
Carrier-based attack bomber 
B5N  B5N2
B6N  B6N1 Model 11 · B6N2 Model 12 · B6N2a Model 12Ko
B7A  B7A2
Land-based Bomber 
P1Y  P1Y1 mod. 11
Land-based Attack bomber 
G4M  G4M1
G5N  G5N1
G8N  G8N1
Flying boat 
H6K  H6K4
H8K  H8K2 · H8K3
Shipboard Observation seaplane 
F1M  F1M2
Light  Ki-32
Medium  Ki-21-Ia · Ki-21-I hei
  Ki-49-I · Ki-49-IIa · Ki-49-IIb · Ki-49-IIb/L
  Ki-67-I Ko · Ki-67-I otsu
Other countries  ▅B-17E

Winter events
2019  Operation F.R.O.S.T.
Pilot stars  TIS MA · J6K1
Tanker stars  QF 3.7 Ram · Merkava Mk.2B
Sailor stars  94 ft PT-811 · Type 1924 Jaguar
2018  Festive Quest
Pilot stars  M.B.152C1 · Fw 190 C
Tanker stars  SU-85A · T30
Christmas Lights  P-43A-1 · Comet I "Iron Duke IV"
2017  Festive Quest
Pilot christmas toys  P-40C · NC.900
Tanker christmas toys  AEC Mk II · Ersatz M10
Christmas Lights  Fw 189 A-1 · KV-2 (1940)
2016  Winter Holiday
Pilot stages  Ki-21-I hei · Me 262 A-2a
Tanker stages  ▃LVT(A)(4) ZIS-2 · ▂Type 62
2015  War Thunder Fulfills Your Wishes!
Pilot reward  ▂P-63C-5
Tanker reward  VK 45.01 (P)
2014  Holiday War Thunder Marathon!
Pilot reward  I-301
Tanker reward  M8A1
2013  Winter Magic!
Rewards  TB-3M-17-32 · XF5F

Japan premium aircraft
Fighters  Hagiri's A5M4 · A7He1 · Ki-27 otsu Tachiarai
  Ki-44-II otsu · ▅Bf 109 E-7 · ▅F4U-1A · Ki-100-II · Ki-44-I 34
  ▅Fw 190 A-5 · A7M1 (NK9H) · Ki-61-I hei Tada's
  J2M4 Kai · A6M5 Ko · J2M5 · Ki-87 · J6K1
Twin-engine fighters  Ki-96
Jet fighters  F-86F-40 JASDF▅
Bombers  Ki-21-I hei · H8K3 · ▅B-17E