Ki-61-I otsu

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Ki-61-I otsu Hien
ki_61_1a_otsu.png
AB
RB
SB
General characteristics
Brief
Detailed
3.3/3.0/2.3BR
FighterClass
1 personCrew
2.5 tEmpty weight
3.1 tTake-off weight
Flight characteristics
10 000 mCeiling
sec21.0/21.0/20.3Turn Time
168 km/hStalling speed
Kawasaki Ha-40Engine
InlineType
waterCooling system
Speed of destruction
850 km/hStructural
330 km/hGear
Offensive armament
4 х 12.7 mm Ho-103 machine gunWeapon 1
1 800 roundsAmmunition
900 shots/minFire rate
Suspended armament
2 х 50 kg Army Type 94 GPHE bombSetup 1
2 х 100 kg Army Type 94 GPHE bombSetup 2
2 х 250 kg Army Type 92 GPHE bombSetup 3
Economy
11 000 Rp icon.pngResearch
38 000 Sl icon.pngPurchase
Sl icon.png3 200 / 4 016/3 300 / 4 141/1 180 / 1 480Repair
11 000 Sl icon.pngCrew training
38 000 Sl icon.pngExperts
250 Ge icon.pngAces
x 1.24 Rp icon.pngReward for battle
This page is about the Japanese fighter Ki-61-I otsu. For other versions, see Ki-61 (Family).

Description

GarageImage Ki-61-I otsu.jpg


The Ki-61-I otsu Hien is a rank II Japanese fighter with a battle rating of 2.3 (AB), 3.0 (RB), and 3.3 (SB). It has been in the game since the start of the Open Beta Test prior to Update 1.27.

Unlike its more manoeuvrable and agile counterpart, the A6M Reisen, the Ki-61 is more of what one would call an "energy fighter". Compared to the "Zero" it is faster, has a higher climb rate, and handles better at higher speeds. Armed with four 12.7 mm Ho-103 machine guns and plenty of ammunition, the Ki-61-Ib is a more than capable fighter. As a continuation of the Japanese army tree, the Ki-61 is the successor of the earlier Ki-43 Hayabusa. The Hien is faster, has a higher rate of climb, and features a better armament. Utilize these three aspects when facing enemy aircraft.

One of the major advantages the Ki-61-Ib has is its climb rate. The stat card may be misleading, but this plane can reach altitudes no enemies will be close to (unless of course, the enemy is another Hien). This allows the Hien to choose when and where it wants to fight. Instead of simply "turning and burning" the Ki-61 is very good at energy fighting, or "boom and zoom". Once at a high altitude the Hien pilot may choose to dive lower to attack an enemy. If the enemy is not destroyed on the first pass, it is recommended to climb sharply and gain altitude. By doing this, the Hien sets itself up for another attack while not being in the range of the enemy's guns.

The Ki-61-I otsu looks akin to the Bf 109 in construction, with its inline engine and armament locations in the nose and wings.

The Ki-61-I otsu utilised four 12.7 mm Ho-103 Japanese machine guns. Generally, they are unreliable and it often takes hundreds of rounds to destroy an enemy plane. This is due to the lack of primer in the rounds themselves. 12.7 mm rounds fired by the M2 Browning may seem to do more damage because they have more primer which dictates how fast the round will exit the barrel. Due to this, it is necessary to get up close to enemies. Aim for the engine, pilot, or fuel tanks if the location is known. Remember to lead with these machine guns, as the rounds are not high velocity.

General info

Flight performance

Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.

Characteristics
Stock
Max Speed
(km/h at 5,000 m)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
567 552 10 000 21.1 21.7 7.9 7.9 420
Upgraded
Max Speed
(km/h at 5,000 m)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
609 587 10 000 19.9 20.3 14.9 11 420

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X
Limits
Wing-break speed
(km/h)
Gear limit
(km/h)
Combat flaps
(km/h)
Max Static G
+ -
850 330 500 ~10 ~7
Optimal velocities
Ailerons
(km/h)
Rudder
(km/h)
Elevators
(km/h)
Radiator
(km/h)
< 360 < 350 < 460 > 312
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
3,550 m 1,100 hp 1,232 hp

Survivability and armour

  • 13 mm Steel plate in pilot's seat

Armaments

Offensive armament

Main article: Ho-103 army (12.7 mm)

The Ki-61-I otsu is armed with:

  • 2 x 12.7 mm Ho-103 machine guns, nose-mounted (400 rpg = 800 total)
  • 2 x 12.7 mm Ho-103 machine guns, wing-mounted (500 rpg = 1,000 total)

Suspended armament

The Ki-61-I otsu can be outfitted with the following ordnance:

  • Without load
  • 2 x 50 kg Army Type 94 GPHE bombs (100 kg total)
  • 2 x 100 kg Army Type 94 GPHE bombs (200 kg total)
  • 2 x 250 kg Army Type 92 GPHE bombs (500 kg total)

Usage in battles

The Hien is best utilised as a multi-purpose fighter. Although proficient at energy fighting, the Ki-61 is also generally good at standard manoeuvres. It may lose turn fights with some enemy aircraft like the Spitfire Mk Vb/trop, but nonetheless it can still be used in multiple roles. The Hien is your standard "jack of all trades". It's not incredibly good at anything it does but it is even across the board. This allows the Hien pilot to choose what role he or she wants to play in the battle. One could play the reserved, high flying energy fighter, or the aggressive low flying dog-fighter. The Ki-61 allows these choices.

Its armament is generally flexible, as it is able to equip multiple kinds of bombs. However, its weapons are considered by many to be unreliable and unwieldy. With accuracy and shot placement, the large ammunition pool can work to your advantage. The best choice of bomb loadout is the 250 kg bombs due to the lack of precision needed. A pilot can miss a direct hit on a pillbox and still destroy it.

If caught in a sticky situation, the Hien pilot may choose to do several things. Depending on your altitude, executing rolling scissors or an overshoot may be a valid tactic. try to make the enemy pilot feel pressured to disengage. Depending on the enemy's aircraft, use your speed to your advantage and try to get away. The surest tactic would be communicating with teammates to ensure your assailant's death. Once tailed, the Hien pilot can "set up" an enemy by nosing up about 70 degrees so the entirety of the enemy plane is shown. At this stage, ideally, your teammate is arriving to save the day. In realistic battles, if your team is made up of A6Ms it may also be beneficial to fly to them and start turn fighting.

Manual Engine Control

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

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair Radiator Offensive 12 mm 7 in (mod20)
II Compressor Airframe 10 in (mod24)
III Wings repair Engine New 12 mm MGs 12 in (mod30)
IV Engine injection Cover
  • Unlocking the performance modules should be a Hien pilot's first concern since there are only two weaponry modules. The stock machine gun belts aren't very good in a general sense, but neither are the others. The New 12 mm MGs can be helpful as it allows for longer periods of firing. Unlocking the bomb modules can help on most maps, no matter the game mode. Destroying some extra ground units can't hurt a team's victory chances

Pros and cons

Pros:

  • Generally performs well in all categories
  • Outstanding climb rate
  • A large amount of ammunition
  • Some armour protection
  • Able to equip bombs

Cons:

  • Unreliable guns
  • Locks up at high speeds
  • No frontal armour
  • Average roll rate which worsens as speed increases

History

The Ki-61 was first put into service in with a special training unit, the 23rd Chutai, and entered combat for the first time in early 1943, during the New Guinea campaign. The Hiens were sent into a difficult theatre where jungles and adverse weather conditions coupled with a lack of spare parts quickly made short work of the Japanese fighters. Nonetheless, the Hien proved to be a worthy adversary and it even outclassed the P-40. Towards the end of the war, Ki-61s were relied upon heavily to defend the Japanese mainland from B-29 attacks. Some pilots used ramming attacks to down the Superfortresses. Soon, entire "special attack squadrons" were formed for the sole purpose of ramming B-29s.

In-game description

A lightweight multipurpose fighter plane, the Ki-61 Hien ("Swallow") was well-armed and well-armoured.

From the very beginning, the makers of the Ki-61 concerned themselves with protecting the fuel tanks and the pilot. The light multipurpose fighter was an effective answer to "hit-and-run" fighters, thanks to its survivability and high diving speed.

The Ki-61 had a Kawasaki Ha-40 liquid-cooled inverted V12 engine, a licensed copy of the DB 601A, capable of 1,175 hp.

A prototype was ready in 1941, and by the next year the first production models were manufactured and the Ki-61-I entered service. The Ki-61-I-Ko was equipped with two wing-mounted 7.7 mm machine guns and two fuselage-mounted synchronous 12.7 mm machine guns. The Ki-61-I-Otsu's four machine guns were all large-calibre.

All in all, 1,380 Ki-61-I aircraft were manufactured.

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

Paste links to sources and external resources, such as:

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


Japan fighters
A5M  A5M4 · Hagiri's A5M4
A6M  A6M2 mod. 11 · A6M2 Reisen · A6M3 Reisen · A6M3 Reisen mod. 22 · A6M3 Reisen mod. 22Ko · A6M5 Reisen · A6M5 Ko Reisen · A6M5 otsu
A7M  A7M1 Reppu (NK9H) · A7M2 Reppu
J2M  J2M2 Raiden · J2M3 Raiden · J2M4 Kai Raiden · J2M5 Raiden · J2M5 (30 mm)
N1K  N1K1-Ja · N1K2-J Shiden-Kai · N1K2-Ja Shiden-Kai
J7W  J7W1 Shinden
Hydroplanes  F1M2 · A6M2-N · N1K1 Kyofu
Ki-10  Ki-10-I · Ki-10-I C · Ki-10-II · Ki-10-II C
Ki-27  Ki-27 otsu
Ki-43  Ki-43-I Hayabusa · Ki-43-II Hayabusa · Ki-43-III otsu Hayabusa
Ki-44  Ki-44-I Shoki · Ki-44-II otsu Shoki · Ki-44-II hei Shoki
Ki-61  Ki-61-I ko Hien · Ki-61-I otsu Hien · Ki-61-I hei Hien · Ki-61-I tei Hien · Ki-61-II
Ki-84  Ki-84 ko Hayate · Ki-84 otsu Hayate · Ki-84 hei Hayate
Ki-87  Ki-87
Ki-94  Ki-94-II
Ki-100  Ki-100 · Ki-100-II
Other countries  A7He1 · ▅F4U-1A Corsair · ▅Bf 109 E-7 · ▅Fw 190 A-5