Difference between revisions of "Ki-27 otsu"

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m (updated flight performance stats)
(Updated as of 1.89.1.33 →‎History: I can't seem to find the in-game description that it supposedly has, so have commented it out for now. Could someone confirm whether it does/n't exist and if it doesn't maybe integrate it into the main history block?)
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== Description ==
 
== Description ==
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<!--''In the description, the first part needs to be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle. If the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle it is talking about.''-->
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<!-- ''In the description, the first part should be about the history of and the creation and combat usage of the aircraft, as well as its key features. In the second part, tell the reader about the aircraft in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
 
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
 
{{break}}
 
{{break}}
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The '''{{Specs|name}}''' is a Rank {{Specs|rank}} Japanese fighter {{Battle-rating|1}}. This aircraft was introduced in [[Update 1.43]].  
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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Japanese fighter {{Battle-rating}}. It was introduced in [[Update 1.43]].
  
−
The Ki-27 is a front-line fighter for interwar / pre-WW2 historical engagements such as the Battles of Khalkin Gol. In most maps, the Ki-27 will distinguish itself as a low-level dog-fighter; its performance below 1,000 m altitudes is superb and can manoeuvre away from nearly any other comparable fighter. Like the Ki-10 series before it, the Ki-27 otsu suffers from its poor armament (twin 7.7 mm Type 89s) and weak armour, which means it makes for a poor interceptor despite its high speed, but the Ki-27 makes an excellent escort for friendly bombers and flying boats. Providing cover for their allied bombers is a top priority for the Ki-27 pilots.  
+
The Ki-27 is a front-line fighter for interwar / pre-WW2 historical engagements such as the Battles of Khalkin Gol. In most maps, the Ki-27 will distinguish itself as a low-level dog-fighter; its performance below 1,000 m is superb and it can manoeuvre away from nearly any other comparable fighter. Like the Ki-10 series before it, the Ki-27 otsu suffers from its poor armament (twin 7.7 mm Type 89s) and weak armour, which means it makes for a poor interceptor despite its high speed, but the Ki-27 makes an excellent escort for friendly bombers and flying boats. Providing cover for their allied bombers is a top priority for the Ki-27 pilots.
  
 
Like its [[Ki-10-II|Ki-10]] predecessor, the Ki-27 relies on its manoeuvrability for its protection. Turn-Fighting, therefore, is vital for a Ki-27 pilot. Avoid diving on opponents, due to the Ki-27's fuel feed issues, and focus on scaring enemy pursuers away from bombers rather than chasing a kill. A lone Ki-27 is easy prey for allied energy fighters. Like most Japanese fighters, engaging an enemy head-on is not recommended. If fighting an enemy "energy Fighter" head-on, a good strategy is to turn away (usually a slight turn as you'll want him to miss you, but also pass you), and hope that he turns to follow.
 
Like its [[Ki-10-II|Ki-10]] predecessor, the Ki-27 relies on its manoeuvrability for its protection. Turn-Fighting, therefore, is vital for a Ki-27 pilot. Avoid diving on opponents, due to the Ki-27's fuel feed issues, and focus on scaring enemy pursuers away from bombers rather than chasing a kill. A lone Ki-27 is easy prey for allied energy fighters. Like most Japanese fighters, engaging an enemy head-on is not recommended. If fighting an enemy "energy Fighter" head-on, a good strategy is to turn away (usually a slight turn as you'll want him to miss you, but also pass you), and hope that he turns to follow.
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Like the comparable [[A5M4]], the Ki-27's carburettor engine suffers from fuel feed issues in negative G manoeuvres, like diving. Nosing down ''will'' cause the engine to choke out. Positive G manoeuvres like the Split-S are preferred. This issue will allow enemies to out dive the Ki-27, so engaging at low altitudes is preferred.
 
Like the comparable [[A5M4]], the Ki-27's carburettor engine suffers from fuel feed issues in negative G manoeuvres, like diving. Nosing down ''will'' cause the engine to choke out. Positive G manoeuvres like the Split-S are preferred. This issue will allow enemies to out dive the Ki-27, so engaging at low altitudes is preferred.
  
−
Additionally, the Ki-27 runs hot and will overheat at 100% throttle on all but the coldest maps. To cool off, ease the throttle back to 40% or 50% and, if possible, try to gain altitude. If the engine overheats during a dog fight, try to break off if the opportunity presents itself. No pilot can outmaneuver an overheated engine.
+
Additionally, the Ki-27 runs hot and will overheat at 100% throttle on all but the coldest maps. To cool off, ease the throttle back to 40% or 50% and, if possible, try to gain altitude. If the engine overheats during a dog fight, try to break off if the opportunity presents itself. No pilot can outmanoeuvre an overheated engine.
 +
 
 
== General info ==
 
== General info ==
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=== Flight Performance ===
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=== Flight performance ===
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<!--''Describe how the aircraft behaves in the air. Maximum speed, maneuverability, speed and allowable loads - these are the most important characteristics of the vehicle.''-->
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''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''
 +
 
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
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! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Rate of climb<br>(meters/second)
 
! colspan="2" | Rate of climb<br>(meters/second)
−
! rowspan="2" |Take-off run<br>(meters)
+
! rowspan="2" | Take-off run<br>(meters)
 
|-
 
|-
 
! AB
 
! AB
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! RB
 
! RB
 
|-
 
|-
−
| 476 || 465 || {{Specs|ceiling}} || 10.4 || 11.0 || 6.2 || 8.8 || 180
+
| 476 || 465 || {{Specs|ceiling}} || 10.2 || 10.6 || 8.5 || 8.5 || 180
 
|-
 
|-
 
! colspan="8" | ''Upgraded''
 
! colspan="8" | ''Upgraded''
 
|-
 
|-
 
! colspan="2" | Max Speed<br>(km/h at 3,500 m)
 
! colspan="2" | Max Speed<br>(km/h at 3,500 m)
−
! rowspan="2" |Max altitude (meters)
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! rowspan="2" | Max altitude<br>(meters)
−
! colspan="2" | Turn time (seconds)
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! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Rate of climb<br>(meters/second)
 
! colspan="2" | Rate of climb<br>(meters/second)
−
! rowspan="2" |Take-off run (meters)
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! rowspan="2" | Take-off run<br>(meters)
 
|-
 
|-
 
! AB
 
! AB
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! RB
 
! RB
 
|-
 
|-
−
| 517 || 495 || {{Specs|ceiling}} || 9.8 || 10.0 || 18.8 || 12.8 || 180
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| 517 || 495 || {{Specs|ceiling}} || 9.8 || 10.0 || 18.6 || 12.8 || 180
 
|-
 
|-
 
|}
 
|}
  
−
====Details====
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==== Details ====
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
 
! colspan="5" | Features
 
! colspan="5" | Features
 
|-
 
|-
−
! Combat flap
+
! Combat flaps
−
! Take-off flap
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! Take-off flaps
−
! Landing flap
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! Landing flaps
 
! Air brakes
 
! Air brakes
 
! Arrestor gear
 
! Arrestor gear
 
|-
 
|-
−
| X || ✓ || ✓ || X || X    <!-- ✓ -->
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| X || X || ✓ || X || X    <!-- ✓ -->
 
|-
 
|-
 
|}
 
|}
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! rowspan="2" | Wing-break speed<br>(km/h)
 
! rowspan="2" | Wing-break speed<br>(km/h)
 
! rowspan="2" | Gear limit<br>(km/h)
 
! rowspan="2" | Gear limit<br>(km/h)
−
! rowspan="2" | Combat flap<br> (km/h)
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! rowspan="2" | Combat flaps<br>(km/h)
 
! colspan="2" | Max Static G
 
! colspan="2" | Max Static G
 
|-
 
|-
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! -
 
! -
 
|-
 
|-
−
| {{Specs|разрушение|конструкции}} || {{Specs|разрушение|шасси}} || 350 || ~18 || ~12
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| {{Specs|destruction|constructions}} || {{Specs|destruction|chassis}} || 350 || ~10 || ~7
 
|-
 
|-
 
|}
 
|}
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! Radiator<br>(km/h)
 
! Radiator<br>(km/h)
 
|-
 
|-
−
| < 350 || < 350 || < 350 || > 260?
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| < 350 || < 350 || < 350 || > 296
 
|-
 
|-
 
|}
 
|}
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! WEP Engine power
 
! WEP Engine power
 
|-
 
|-
−
| 3,,300 m || 680 hp || 816 hp
+
| 3,300 m || 705 hp || 846 hp
−
|-
 
−
<!--! colspan="3" | Setting 2
 
−
|-
 
−
! Optimal altitude
 
−
! 100% Engine power
 
−
! WEP Engine power
 
−
|-
 
−
| ?,??? m || ?,??? hp || ?,??? hp  
 
 
|-
 
|-
−
! colspan="3" | Setting 3
 
−
|-
 
−
! Optimal altitude
 
−
! 100% Engine power
 
−
! WEP Engine power
 
−
|-
 
−
| ?,??? m || ?,??? hp || ?,??? hp
 
−
|- -->
 
 
|}
 
|}
  
 
=== Survivability and armour ===
 
=== Survivability and armour ===
−
<!--''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured. Describe the armour, if there is any, also mention the vulnerability of other critical aircraft systems.''-->
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''Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.''
−
 
 
−
* No armour plating
 
−
* No armour glazing
 
−
* Critical components located at the front of aircraft (fuel, pilot, engine, controls)
 
−
* More fuel tanks located in wings near the fuselage
 
  
 
== Armaments ==
 
== Armaments ==
 
=== Offensive armament ===
 
=== Offensive armament ===
−
<!--''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.''-->
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<!-- ''Describe the offensive armament of the aircraft, if any. Describe how effective the cannons and machine guns are in a battle, and also what belts or drums are better to use. If there is no offensive weaponry, delete this subsection.'' -->
 
{{main|Type 89 army (7.7 mm)}}
 
{{main|Type 89 army (7.7 mm)}}
  
 
The '''''{{PAGENAME}}''''' is armed with:
 
The '''''{{PAGENAME}}''''' is armed with:
 +
* 2 x 7.7 mm Type 89 army machine guns, nose-mounted (500 rpg = 1,000 total)
  
−
* 2 x 7.7 mm Type 89 machine guns, nose mounted (500 rpg = 1,000 total)
+
== Usage in battles ==
 +
<!-- ''Describe the tactics of playing in an aircraft, the features of using aircraft in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view, but instead, give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 +
A superior dogfighter for turn-fighting, the Ki-27 is the first plane to begin showing the features typical of the Japanese [[A6M2|"Zero"]] but with none of the bite. Its speed and manoeuvrability are plagued by engine problems, with no armour and a standard armament.
  
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<!--=== Suspended armament ===
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In battle, no Allied fighter can out-turn you, except for biplanes, but most will outgun you (and even most biplanes match the Ki-27 in armament).
−
''Describe the aircraft's suspended armament: additional cannons under the wings, bombs, rockets and torpedoes. This section is especially important for bombers and attackers. If there is no suspended weaponry remove this subsection.''
 
−
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;''Main article:&nbsp;'''[[:Category:Suspended armaments|Bombs]]'''''
 
  
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=== Defensive armament ===
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Biplanes (except the [[I-153 M-62|I-153 Chaika]]) make easy prey for the Ki-27, and the Ki-27 can easily outmanoeuvre the [[P-36C|P-36 Hawk]], the [[F2A-1|F2A Brewster Buffalo]] and the [[I-16 type 24|I-16 Ishak]], but their stronger armaments will knock out a Ki-27 in a single good burst. Simply outrunning any of them is an excellent evasive manoeuvre. [[Hurricane Mk I/L|Hurricane Mk I]]s can strictly complete with the Ki-27 Otsu in manoeuvrability, but the Hurricane's heavier armament (four times that of the Ki-27) can also quickly shred a Ki-27. Additionally, outrunning a Hurricane in a Ki-27 is not possible. [[I-15bis|I-15]]s, which the Ki-27 historically outperformed, will be the bane of a Ki-27s existence, as their excellent turn ability will force it into energy bleeding manoeuvres or Boom & Zoom style combat. Risky with competition around to abuse either state.
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''Defensive armament with turret machine guns or cannons, crewed by gunners. Examine the number of gunners and what belts or drums are better to use. If defensive weaponry is not available, remove this subsection.''
 
−
-->
 
−
== Usage in the battles ==
 
−
<!--''Describe the tactics of playing in an aircraft, the features of using vehicles in a team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but give the reader food for thought. Examine the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''-->
 
−
A superior dogfighter for turn-fighting, the Ki-27 is the first plane to begin showing the features typical of the Japanese "[[A6M2|Zero]]" but with none of the bite. Its speed and manoeuvrability are plagued by engine problems, with no armour and a standard armament.
 
  
−
In battle, no Allied fighter can out-turn you, except for biplanes, but most will outgun you (and even most biplanes match the Ki-27 in armament).
+
Despite its low battle rating, you can face some challenging foes when flying the Ki-27. Bi-planes will give you a run for your money in terms of manoeuvrability, while some early mono-planes will be faster and more heavily armed than you. Therefore, it is important to judge your foes accordingly.
  
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Bi-planes (except the I-153 Chaika) make easy prey for the Ki-27, and the Ki-27 can easily outmanoeuvre the [[P-36C|P-36 Hawk]], the [[F2A-1|F2A Brewster Buffalo]] and the [[I-16 type 24|I-16 Ishak]], but their more massive armaments will knock out a Ki-27 in a single good burst. Simply outrunning any of them is an excellent evasive manoeuvre. [[Hurricane Mk I/L|Hurricane Mk I]]s can strictly complete with the Ki-27 Otsu in manoeuvrability, but the Hurricane's heavier armament (four times what the ''Nate'' has) can also quickly shred a Ki-27. Additionally, outrunning a Hurricane in a Ki-27 is not possible. [[I-15bis|I-15]]s, which the Ki-27 historically outperformed, will be the bane of a Ki-27s existence, as their excellent turn ability will force the Nate to energy bleeding manoeuvres or Boom & Zoom style combat. Risky with competition around to abuse either state.
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One of the most challenging opponents is the ''[[I-153 M-62|I-153 Chaika]]''. It is not a mere upgraded [[I-15bis]], but in all performance aspects ''equal'' to the Nakajima Ki-27 fighter. Also on the Russian side, the Mig-3 is a significant threat. It is one of the fastest aircraft in its battle rating and has decent armament. In skilled hands, it can be an almost impossible opponent to combat, especially when using Boom & Zoom tactics against you. Your only defence will be to try and outmanoeuvre it or to lure it into a turn fight. The I-16 is also a familiar opponent.
  
−
Despite its low {{Battle-rating|1}}, you can face some challenging foes when flying the Ki-27. Bi-planes will give you a run for your money in terms of manoeuvrability, while some early mono-planes will be faster and more heavily armed than you. Therefore, it is important to judge your foes accordingly.  
+
From America, you will face the [[P-26A-33|P-26]]. They are quite good divers and have a decent roll rate, but will not be able to outmanoeuvre you in a turn fight. The [[P-36A|P-36]] is more challenging. Faster and well armed, you will have to rely on your turn rate to try and outmanoeuvre them.
  
−
+
=== Manual Engine Control ===
−
One of the most challenging opponents is the ''[[I-153 M-62|Chaika]]''. It is not a mere upgraded [[I-15bis]], but in all performance aspects ''equal'' to the Nakajima Ki-27 fighter. Also on the Russian side, the Mig-3 is a significant threat. It is one of the fastest aircraft in its battle rating and has decent armament. In skilled hands, it can be an almost impossible opponent to combat, especially when using Boom & Zoom tactics against you. Your only defence will be to try and outmanoeuvre it or to lure it into a turn fight. The I-16 is also a familiar opponent.
 
−
 
 
−
From America, you will face the P-26. They are quite good divers and have a decent roll rate, but will not be able to outmaneuver you in a turn fight. The P-36 is more challenging. Faster and well armed, you will have to rely on your turn rate to try and out maneuver them.
 
−
===Manual Engine Control===
 
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
 
! colspan="7" | MEC elements
 
! colspan="7" | MEC elements
 
|-
 
|-
−
! rowspan="2" |Mixer
+
! rowspan="2" | Mixer
−
! rowspan="2" |Pitch
+
! rowspan="2" | Pitch
−
! colspan="3" |Radiator
+
! colspan="3" | Radiator
−
! rowspan="2" |Supercharger
+
! rowspan="2" | Supercharger
−
! rowspan="2" |Turbocharger
+
! rowspan="2" | Turbocharger
 
|-
 
|-
 
! Oil
 
! Oil
 
! Water
 
! Water
−
! Type  
+
! Type
 
|-
 
|-
−
| Controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Not controllable || rowspan="2" | Separate || rowspan="2" | Not ontrollable || rowspan="2" | Not controllable
+
| Controllable || rowspan="2" | Not controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Controllable<br>Not auto controlled || rowspan="2" | Separate || rowspan="2" | Not controllable<br>1 gear || rowspan="2" | Not controllable
 
|-
 
|-
 
|}
 
|}
  
−
===Modules===
+
=== Modules ===
 
{| class="wikitable"
 
{| class="wikitable"
 
! colspan="1" | Tier
 
! colspan="1" | Tier
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|-
 
|-
 
| I
 
| I
−
| Fuselage Repair
+
| Fuselage repair
 
| Radiator
 
| Radiator
−
|  
+
|
 
| Offensive 7 mm
 
| Offensive 7 mm
 
|-
 
|-
 
| II
 
| II
−
|  
+
|
 
| Compressor
 
| Compressor
 
| Airframe
 
| Airframe
−
|  
+
|
 
|-
 
|-
 
| III
 
| III
−
| Wings Repair
+
| Wings repair
 
| Engine
 
| Engine
−
|  
+
|
 
| New 7 mm MGs
 
| New 7 mm MGs
 
|-
 
|-
 
| IV
 
| IV
−
|  
+
|
−
| Engine Injection
+
| Engine injection
 
| Cover
 
| Cover
−
|  
+
|
 
|-
 
|-
 
|}
 
|}
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=== Pros and cons ===
 
=== Pros and cons ===
−
<!--''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Do not use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - they have a substitution in the form of softer "inadequate", "effective".''-->
+
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in the bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
  
 
'''Pros:'''
 
'''Pros:'''
−
 
 
* Great manoeuvrability, on par with biplanes
 
* Great manoeuvrability, on par with biplanes
 
* Good stability in turns
 
* Good stability in turns
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'''Cons:'''
 
'''Cons:'''
−
 
 
* Limited firepower
 
* Limited firepower
 
* Engine overheats rapidly on hot maps
 
* Engine overheats rapidly on hot maps
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== History ==
 
== History ==
−
<!--''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 big, take it to a separate article, taking a link to an article about the vehicle and adding a block "/ historical reference" (example: https://wiki.warthunder.com/Name-vehicles/historical reference) and add a link to it here using the <code>main</code> template. Be sure to include links to sources at the end of the article.''-->
+
<!-- ''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: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
−
The Nakajima Ki-27 otsu began as the Ki-11, a competitor for the [[Ki-10-I|Kawasaki Ki-10]] biplane. While faster and more modern than the Ki-10 biplane, the Ki-11 wasn't adopted because the Imperial Japanese Army valued manoeuvrability over speed. Nakajima continued development of the design before finalising the Ki-12, a modern monoplane with a liquid-cooled engine and retractable landing gear, but the Army denied it outright as to maintenance heavy for forwarding airbases in Manchurian and China. The redesigned plane instead featured a radial air-cooled engine, fixed landing gear and fully enclosed cockpit and received the designation Ki-27.  
+
The Nakajima Ki-27 otsu began as the Ki-11, a competitor for the [[Ki-10-I|Kawasaki Ki-10]] biplane. While faster and more modern than the Ki-10 biplane, the Ki-11 wasn't adopted because the Imperial Japanese Army valued manoeuvrability over speed. Nakajima continued development of the design before finalising the Ki-12, a modern monoplane with a liquid-cooled engine and retractable landing gear, but the Army denied it outright as too maintenance heavy for forward airbases in Manchuria and China. The redesigned plane instead featured a radial air-cooled engine, fixed landing gear and fully enclosed cockpit and received the designation Ki-27.
  
−
In 1936, the Ki-27 competed against the Kawasaki Ki-28 (a prototype design fated never to enter production) and the Mitsubishi Ki-33 (a de-navalized [[A5M4|A5M]]). While the Ki-33 outperformed the Ki-27 in most regards, the Imperial Japanese Army was loathed to adopt a "navy fighter", and approved the Ki-27 with minor modifications. The Ki-27 entered service as the Army Type 97 Fighter.
+
In 1936, the Ki-27 competed against the Kawasaki Ki-28 (a prototype design fated to never enter production) and the Mitsubishi Ki-33 (a de-navalised [[A5M4|A5M]]). While the Ki-33 outperformed the Ki-27 in most regards, the Imperial Japanese Army was loath to adopt a "navy fighter", and approved the Ki-27 with minor modifications. The Ki-27 entered service as the Army Type 97 Fighter.
  
−
While the Ki-10 would not be finally phased out from front line service until 1942, by 1940, the Ki-27 was the premiere army fighter on the front lines. It was unmatched by any plane in the Chinese air force inventory, and outperformed the Soviet [[I-15bis|I-15]] and [[I-16 type 18|I-16]] fighters in the Battles of Khalkhin Gol, with some pilots scoring 11 kills against Soviet planes in a single day. Against Chinese Curtiss [[P-36A|P-36 Hawks]], veteran Ki-27 pilots achieved similar, but not as impressive kill rates.
+
While the Ki-10 would not be finally phased out from front line service until 1942, by 1940, the Ki-27 was the primary army fighter on the front lines. It was unmatched by any plane in the Chinese air force inventory, and outperformed the Soviet [[I-15bis|I-15]] and [[I-16 type 18|I-16]] fighters in the Battles of Khalkhin Gol, with some pilots scoring 11 kills against Soviet planes in a single day. Against Chinese Curtiss [[P-36A|P-36 Hawks]], veteran Ki-27 pilots achieved similar, but not as impressive kill rates.
  
−
Over China, the Ki-27 was unmatched until the deployment of the [[P-40E-1|P-40 Warhawks]] with the American Volunteer Group. After, America's entry into the war, the Ki-27 also fared poorly against the US Navy's F2A Brewster Buffalo and F4F Wildcat and was removed from most front line service within the first months of the war, replaced by the much-improved Ki-43. However, it remained a front line fighter in Thai service, where the Ki-27 scored recorded kills against [[P-51D-30|P-51]]s and at least one [[P-38G-1|P-38]].
+
Over China, the Ki-27 was unmatched until the deployment of the [[P-40E-1|P-40 Warhawks]] with the American Volunteer Group. After America's entry into the war, the Ki-27 also fared poorly against the US Navy's F2A Brewster Buffalo and F4F Wildcat and was removed from most front line service within the first months of the war, replaced by the much-improved Ki-43. However, it remained a front line fighter in Thai service, where the Ki-27 scored recorded kills against [[P-51D-30|P-51]]s and at least one [[P-38G-1|P-38]].
  
−
Because of their high production numbers and relatively few losses, Ki-27 would see a renewed role late in the war as Kamikaze planes.  
+
Because of their high production numbers and relatively few losses, Ki-27 would see a renewed role late in the war as Kamikaze planes.
  
−
=== Ingame description ===
+
<!-- === In-game description ===
 
The '''Nakajima Ki-27''' (九七式戦闘機 Kyūnana-Shiki sentōki, or Type 97 Fighter; Allied Codename "''Nate''") was the main fighter aircraft used by the Imperial Japanese Army Air Force up until 1940. Its Allied nickname was "Nate".
 
The '''Nakajima Ki-27''' (九七式戦闘機 Kyūnana-Shiki sentōki, or Type 97 Fighter; Allied Codename "''Nate''") was the main fighter aircraft used by the Imperial Japanese Army Air Force up until 1940. Its Allied nickname was "Nate".
  
 
The Japanese achieved air superiority over China and threatened even the Soviets with the Ki-27 when it was first introduced. Nothing the Chinese or Soviets had available to them were able to match the Ki-27's ability to dogfight effectively, and the kill ratio of the Ki-27 was high.
 
The Japanese achieved air superiority over China and threatened even the Soviets with the Ki-27 when it was first introduced. Nothing the Chinese or Soviets had available to them were able to match the Ki-27's ability to dogfight effectively, and the kill ratio of the Ki-27 was high.
  
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Note: The Ki-27 was the primary Japanese fighter used in the Battles of Khalkin Gol, though this is not yet reflected (as of 4/2/2015) in War Thunder's Dynamic Campaign mode, which has Ki-10's and [[Ki-43-II|Ki-43]]'s, likely due to the fact that the Ki-27 arrived in a later patch.  
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Note: The Ki-27 was the primary Japanese fighter used in the Battles of Khalkin Gol, though this is not yet reflected (as of 4/2/2015) in War Thunder's Dynamic Campaign mode, which has Ki-10's and [[Ki-43-II|Ki-43]]'s, likely due to the fact that the Ki-27 arrived in a later patch.
  
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The version in War Thunder has fuel "bumps" integrated into the plane.
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The version in War Thunder has fuel "bumps" integrated into the plane. -->
  
 
== Media ==
 
== Media ==
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''An excellent addition to the article will be video guides, as well as screenshots from the game and photos.''
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''Excellent additions to the article would be video guides, screenshots from the game, and photos.''
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== Read also ==
 
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''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example,''
 
  
 +
== 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;''
 
* ''reference to the series of the aircraft;''
 
* ''links to approximate analogues of other nations and research trees.''
 
* ''links to approximate analogues of other nations and research trees.''
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<!--''ETC.''-->
 
  
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== Sources ==
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== External links ==
 
''Paste links to sources and external resources, such as:''
 
''Paste links to sources and external resources, such as:''
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* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
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* ''page on aircraft encyclopedia;''
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* ''encyclopedia page on the aircraft;''
 
* ''other literature.''
 
* ''other literature.''
  
 
{{Japan fighters}}
 
{{Japan fighters}}

Revision as of 10:52, 7 June 2019

Rank VI USSR | Premium | Golden Eagles
Su-25K Pack
Ki-27 otsu
ki-27_otsu.png
Ki-27 otsu
Japan flag.png Japan
I Rank
Battle rating:
AB RB SB
1.3 2.0 1.3
Class:
Research:2 900 Specs-Card-Exp.png
Purchase:700 Specs-Card-Lion.png
Show in game

Description

GarageImage Ki-27 otsu.jpg


The Ki-27 otsu is a rank I Japanese fighter with a battle rating of 1.3 (AB/SB) and 2.0 (RB). It was introduced in Update 1.43.

The Ki-27 is a front-line fighter for interwar / pre-WW2 historical engagements such as the Battles of Khalkin Gol. In most maps, the Ki-27 will distinguish itself as a low-level dog-fighter; its performance below 1,000 m is superb and it can manoeuvre away from nearly any other comparable fighter. Like the Ki-10 series before it, the Ki-27 otsu suffers from its poor armament (twin 7.7 mm Type 89s) and weak armour, which means it makes for a poor interceptor despite its high speed, but the Ki-27 makes an excellent escort for friendly bombers and flying boats. Providing cover for their allied bombers is a top priority for the Ki-27 pilots.

Like its Ki-10 predecessor, the Ki-27 relies on its manoeuvrability for its protection. Turn-Fighting, therefore, is vital for a Ki-27 pilot. Avoid diving on opponents, due to the Ki-27's fuel feed issues, and focus on scaring enemy pursuers away from bombers rather than chasing a kill. A lone Ki-27 is easy prey for allied energy fighters. Like most Japanese fighters, engaging an enemy head-on is not recommended. If fighting an enemy "energy Fighter" head-on, a good strategy is to turn away (usually a slight turn as you'll want him to miss you, but also pass you), and hope that he turns to follow.

Like the comparable A5M4, the Ki-27's carburettor engine suffers from fuel feed issues in negative G manoeuvres, like diving. Nosing down will cause the engine to choke out. Positive G manoeuvres like the Split-S are preferred. This issue will allow enemies to out dive the Ki-27, so engaging at low altitudes is preferred.

Additionally, the Ki-27 runs hot and will overheat at 100% throttle on all but the coldest maps. To cool off, ease the throttle back to 40% or 50% and, if possible, try to gain altitude. If the engine overheats during a dog fight, try to break off if the opportunity presents itself. No pilot can outmanoeuvre an overheated engine.

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 3,500 m) 		Max altitude
(meters) 		Turn time
(seconds) 		Rate of climb
(meters/second) 		Take-off run
(meters)
AB RB AB RB AB RB
476 465 8500 10.2 10.6 8.5 8.5 180
Upgraded
Max Speed
(km/h at 3,500 m) 		Max altitude
(meters) 		Turn time
(seconds) 		Rate of climb
(meters/second) 		Take-off run
(meters)
AB RB AB RB AB RB
517 495 8500 9.8 10.0 18.6 12.8 180

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
X X ✓ X X
Limits
Wing-break speed
(km/h) 		Gear limit
(km/h) 		Combat flaps
(km/h) 		Max Static G
+ -
350 ~10 ~7
Optimal velocities
Ailerons
(km/h) 		Rudder
(km/h) 		Elevators
(km/h) 		Radiator
(km/h)
< 350 < 350 < 350 > 296
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
3,300 m 705 hp 846 hp

Survivability and armour

Examine the survivability of the aircraft. Note how vulnerable the structure is and how secure the pilot is, whether the fuel tanks are armoured, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.

Armaments

Offensive armament

Main article: Type 89 army (7.7 mm)

The Ki-27 otsu is armed with:

  • 2 x 7.7 mm Type 89 army machine guns, nose-mounted (500 rpg = 1,000 total)

Usage in battles

A superior dogfighter for turn-fighting, the Ki-27 is the first plane to begin showing the features typical of the Japanese "Zero" but with none of the bite. Its speed and manoeuvrability are plagued by engine problems, with no armour and a standard armament.

In battle, no Allied fighter can out-turn you, except for biplanes, but most will outgun you (and even most biplanes match the Ki-27 in armament).

Biplanes (except the I-153 Chaika) make easy prey for the Ki-27, and the Ki-27 can easily outmanoeuvre the P-36 Hawk, the F2A Brewster Buffalo and the I-16 Ishak, but their stronger armaments will knock out a Ki-27 in a single good burst. Simply outrunning any of them is an excellent evasive manoeuvre. Hurricane Mk Is can strictly complete with the Ki-27 Otsu in manoeuvrability, but the Hurricane's heavier armament (four times that of the Ki-27) can also quickly shred a Ki-27. Additionally, outrunning a Hurricane in a Ki-27 is not possible. I-15s, which the Ki-27 historically outperformed, will be the bane of a Ki-27s existence, as their excellent turn ability will force it into energy bleeding manoeuvres or Boom & Zoom style combat. Risky with competition around to abuse either state.

Despite its low battle rating, you can face some challenging foes when flying the Ki-27. Bi-planes will give you a run for your money in terms of manoeuvrability, while some early mono-planes will be faster and more heavily armed than you. Therefore, it is important to judge your foes accordingly.

One of the most challenging opponents is the I-153 Chaika. It is not a mere upgraded I-15bis, but in all performance aspects equal to the Nakajima Ki-27 fighter. Also on the Russian side, the Mig-3 is a significant threat. It is one of the fastest aircraft in its battle rating and has decent armament. In skilled hands, it can be an almost impossible opponent to combat, especially when using Boom & Zoom tactics against you. Your only defence will be to try and outmanoeuvre it or to lure it into a turn fight. The I-16 is also a familiar opponent.

From America, you will face the P-26. They are quite good divers and have a decent roll rate, but will not be able to outmanoeuvre you in a turn fight. The P-36 is more challenging. Faster and well armed, you will have to rely on your turn rate to try and outmanoeuvre them.

Manual Engine Control

MEC elements
Mixer Pitch Radiator Supercharger Turbocharger
Oil Water Type
Controllable Not 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 7 mm
II Compressor Airframe
III Wings repair Engine New 7 mm MGs
IV Engine injection Cover
  • At this rank, the order of research is mainly personal preference, though the Ki-27 Otsu will benefit significantly from defensive and performance enhancing modifications.

Pros and cons

Pros:

  • Great manoeuvrability, on par with biplanes
  • Good stability in turns
  • Good speed, for its tier
  • Excellent climb, can reach above 20 m/s

Cons:

  • Limited firepower
  • Engine overheats rapidly on hot maps
  • Engine chokes in negative g dives
  • No armour

History

The Nakajima Ki-27 otsu began as the Ki-11, a competitor for the Kawasaki Ki-10 biplane. While faster and more modern than the Ki-10 biplane, the Ki-11 wasn't adopted because the Imperial Japanese Army valued manoeuvrability over speed. Nakajima continued development of the design before finalising the Ki-12, a modern monoplane with a liquid-cooled engine and retractable landing gear, but the Army denied it outright as too maintenance heavy for forward airbases in Manchuria and China. The redesigned plane instead featured a radial air-cooled engine, fixed landing gear and fully enclosed cockpit and received the designation Ki-27.

In 1936, the Ki-27 competed against the Kawasaki Ki-28 (a prototype design fated to never enter production) and the Mitsubishi Ki-33 (a de-navalised A5M). While the Ki-33 outperformed the Ki-27 in most regards, the Imperial Japanese Army was loath to adopt a "navy fighter", and approved the Ki-27 with minor modifications. The Ki-27 entered service as the Army Type 97 Fighter.

While the Ki-10 would not be finally phased out from front line service until 1942, by 1940, the Ki-27 was the primary army fighter on the front lines. It was unmatched by any plane in the Chinese air force inventory, and outperformed the Soviet I-15 and I-16 fighters in the Battles of Khalkhin Gol, with some pilots scoring 11 kills against Soviet planes in a single day. Against Chinese Curtiss P-36 Hawks, veteran Ki-27 pilots achieved similar, but not as impressive kill rates.

Over China, the Ki-27 was unmatched until the deployment of the P-40 Warhawks with the American Volunteer Group. After America's entry into the war, the Ki-27 also fared poorly against the US Navy's F2A Brewster Buffalo and F4F Wildcat and was removed from most front line service within the first months of the war, replaced by the much-improved Ki-43. However, it remained a front line fighter in Thai service, where the Ki-27 scored recorded kills against P-51s and at least one P-38.

Because of their high production numbers and relatively few losses, Ki-27 would see a renewed role late in the war as Kamikaze planes.


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
Navy 
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
Army 
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 · Tada's Ki-61-I hei · Ki-61-I tei · Ki-61-II Otsu 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)

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