Difference between revisions of "Ki-21-I hei"

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* [https://forum.warthunder.com/index.php?/topic/234534-mitsubishi-ki-21-i-kohei/ Official data sheet - more details about the performance]
  
 
{{AirManufacturer Mitsubishi}}
 
{{AirManufacturer Mitsubishi}}

Revision as of 14:24, 23 January 2021

This page is about the gift Japanese bomber Ki-21-I hei. For the regular version, see Ki-21-Ia.
Ki-21-I hei
ki_21_1hei.png
GarageImage Ki-21-I hei.jpg
Ki-21-I hei
Show in game
MARKET

Description

The Ki-21-I hei is a gift rank I Japanese medium bomber with a battle rating of 2.3 (AB), 2.0 (RB), and 1.7 (SB). It was introduced in Update 1.65 "Way of the Samurai" during the 2016 Winter Holiday event.

General info

Flight performance

Max speed
at 400 m432 km/h
Turn time14 s
Max altitude8 600 m
Engine2 х Nakajima Ha-5
TypeRadial
Cooling systemAir
Take-off weight8 t
Characteristics Max Speed
(km/h at 400 m)
Max altitude
(metres)
Turn time
(seconds)
Rate of climb
(metres/second)
Take-off run
(metres)
AB RB AB RB AB RB
Stock 413 400 8600 14.7 15.3 3.1 3.1 600
Upgraded 453 432 13.6 14.0 9.8 5.9

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
540 380 450 450 250 ~7 ~2
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 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

Crew5 people
Speed of destruction
Structural540 km/h
Gear380 km/h
  • No armour
  • Self-sealing fuel tanks (2 in each wing, 2 in the mid-fuselage)

Modifications and economy

Repair cost
AB530 Sl icon.png
RB1 500 Sl icon.png
SB960 Sl icon.png
Crew training450 Sl icon.png
Experts3 000 Sl icon.png
Aces40 Ge icon.png
Research Aces220 000 Rp icon.png
Reward for battleAB / RB / SB
Talisman.png 2 × 20 / 50 / 70 % Sl icon.png
Talisman.png 2 × 100 / 100 / 100 % Rp icon.png
Modifications
Flight performance Survivability Weaponry
Mods aerodinamic fuse.png
Fuselage repair
Mods radiator.png
Radiator
Mods compressor.png
Compressor
Mods aerodinamic wing.png
Wings repair
Mods new engine.png
Engine
Mods metanol.png
Engine injection
Mods armor frame.png
Airframe
Mods armor cover.png
Cover
Mods ammo.png
bmg303_turret_belt_pack
Mod arrow 0.png
Mods pilon bomb.png
12 in (mod30)
Mod arrow 1.png
Mods turret gun.png
vikkersK_turret_new_gun
Mods ammo.png
type97_turret_belt_pack
Mod arrow 0.png
Mods pilon bomb.png
14 in (mod30)
Mods turret gun.png
type89_turret_new_gun

Armaments

Suspended armament

Number of setups4
List of setups
Setup 120 x 50 kg Army Type 94 GPHE bomb
Setup 210 x 100 kg Army Type 94 GPHE bomb
Setup 34 x 250 kg Army Type 92 GPHE bomb
Setup 42 x 500 kg Army Type 92 GPHE bomb

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

Turret2 x 7.7 mm Type 89 machine gun 'special'
Ammunition900 rounds
Fire rate700 shots/min
7 х Turret7.7 mm Te-1 machine gun
Ammunition483 rounds
Fire rate950 shots/min

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.

Pros and cons

Pros:

  • 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

Cons:

  • 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

History

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).

Media

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


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
Navy 
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
Army 
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
2020  Operation W.I.N.T.E.R.
Pilot stars  Ro.57 Quadriarma · MiG-21PFM
Tanker stars  E.B.R. (1954) · Class 3 (P)
Sailor stars  Type K-8 (1942) · USS Baltimore (CA-68)
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