Difference between revisions of "J-4"

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== General info ==
 
== General info ==
 
=== Flight performance ===
 
=== 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.''
+
<!-- ''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" width="70%"
 
! rowspan="2" | Characteristics
 
! rowspan="2" | Characteristics
 
! colspan="2" | Max Speed<br>(km/h at 2,000 m)
 
! colspan="2" | Max Speed<br>(km/h at 2,000 m)
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|-
 
|-
 
! Stock
 
! Stock
−
| 1,097 || 1,061 || rowspan="2" | {{Specs|ceiling}} || 22.2 || 23.2 || 41.2 || 39.1 || rowspan="2" | 475
+
| 1,091 || 1,061 || rowspan="2" | {{Specs|ceiling}} || 22.2 || 23.2 || 41.2 || 39.1 || rowspan="2" | 475
 
|-
 
|-
 
! Upgraded
 
! Upgraded
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==== Details ====
 
==== Details ====
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
 
! colspan="6" | Features
 
! colspan="6" | Features
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|}
 
|}
  
−
{| class="wikitable" style="text-align:center"
+
{| class="wikitable" style="text-align:center" width="50%"
 
|-
 
|-
 
! colspan="7" | Limits
 
! colspan="7" | Limits
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=== 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, etc. Describe the armour, if there is any, and also mention the vulnerability of other critical aircraft systems.''-->
+
<!-- ''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.'' -->
  
 
* 60 mm Bulletproof glass in cockpit front.
 
* 60 mm Bulletproof glass in cockpit front.
 
* 16 mm Steel plates behind the pilot.
 
* 16 mm Steel plates behind the pilot.
 
* 10 mm Steel plate in the nose.
 
* 10 mm Steel plate in the nose.
−
 
  
 
== 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.''-->
+
<!-- ''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|N-37D (37 mm)|NR-23 (23 mm)}}
 
{{main|N-37D (37 mm)|NR-23 (23 mm)}}
  
−
The '''''{{PAGENAME}}''''' was outfitted with the following offensive armament:
+
The '''''{{PAGENAME}}''''' is armed with:
  
−
* 1 x 37 mm N-37D autocannon (40 rounds total)
+
* 1 x 37 mm N-37D cannon, chin-mounted (40 rpg)
−
* 2 x 23 mm NR-23 autocannons (160 rounds total)
+
* 2 x 23 mm NR-23 cannons, chin-mounted (80 rpg = 160 total)
  
 
=== Suspended armament ===
 
=== Suspended 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.''-->
+
<!-- ''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.'' -->
 
{{main|OFAB-250-270 (250 kg)|S-5K|S-5M|S-21}}
 
{{main|OFAB-250-270 (250 kg)|S-5K|S-5M|S-21}}
  
−
The '''''{{PAGENAME}}''''' can be outfitted with the following suspended ordnance:
+
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
  
−
* 2 x 250 kg OFAB-250-270 bombs (total = 500 kg)
+
* Without load
 +
* 2 x 250 kg OFAB-250-270 bombs (500 kg total)
 
* 16 x S-5K rockets
 
* 16 x S-5K rockets
 
* 16 x S-5M rockets
 
* 16 x S-5M rockets
−
* 2 X S-21 rockets
+
* 2 x S-21 rockets
  
−
<!--
 
−
=== Defensive armament ===
 
−
''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 battles ==
 
== Usage in battles ==
−
<!--''Describe the tactics of playing in the 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).''-->
+
<!-- ''Describe the tactics of playing in the 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).'' -->
  
−
The newly gained top speed performance and maneuverbility come at a hefty price. Turn rate and low speed flexibility are reduced, due the stronger swept wing design and weight gain.
+
The newly gained top speed performance and manoeuvrability come at a hefty price. Turn rate and low speed flexibility are reduced, due the stronger swept wing design and weight gain.
  
 
Acceleration also takes a hit, especially on take-off the predecessor will rush ahead.
 
Acceleration also takes a hit, especially on take-off the predecessor will rush ahead.
  
−
As some positive characteristics traits of the MiG-15 vanish, some negative aspect vanish. The newly designed tail enables far better control close over Mach 0.8 (it still lacks a flying tail though) and the roll rate also significantly improved. Manual limitation set the airframe at positive 8G, with the increased control the likelihood of over stressing your airframe is easy and a steady hand required in evasive maneuvers.
+
As some positive characteristics traits of the MiG-15 vanish, some negative aspects also vanish. The newly designed tail enables far better control close to Mach 0.8 (it still lacks a flying tail though) and the roll rate also significantly improved. Manual limitation set the airframe at positive 8G, with the increased control the likelihood of over stressing your airframe is easy and a steady hand required in evasive manoeuvres.
 +
 
 +
=== Modules ===
 +
{| class="wikitable"
 +
! Tier
 +
! colspan="2" | Flight performance
 +
! Survivability
 +
! colspan="3" | Weaponry
 +
|-
 +
| I
 +
| Fuselage repair
 +
| Compressor
 +
|
 +
| Offensive 23 mm
 +
|
 +
| BD-2-48
 +
|-
 +
| II
 +
| New boosters
 +
|
 +
| Airframe
 +
|
 +
| Offensive 37 mm
 +
| S5K
 +
|-
 +
| III
 +
| Wings repair
 +
|
 +
|
 +
| New 23 mm cannons
 +
|
 +
| S5M
 +
|-
 +
| IV
 +
| G-suit
 +
| Engine
 +
| Cover
 +
|
 +
| New 37 mm cannons
 +
| S21
 +
|-
 +
|}
  
 
=== 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. 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".''-->
+
<!-- ''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:'''
 
* Incredibly fast in a dive.
 
* Incredibly fast in a dive.
 
* Excellent climb speed, almost same as the [[J-2]]
 
* Excellent climb speed, almost same as the [[J-2]]
−
* Very good maneuverability at low to medium speeds, also better maneuverability than its predecessor at high speed
+
* Very good manoeuvrability at low to medium speeds, also better manoeuvrability than its predecessor at high speed
 
* Excellent energy retention, but if you turn too hard, expect to lose a few hundred km/h
 
* Excellent energy retention, but if you turn too hard, expect to lose a few hundred km/h
 
* Can safely reach a speed of 1,150 km/h when diving
 
* Can safely reach a speed of 1,150 km/h when diving
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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 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).''-->
+
<!-- ''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 usage of the designation '''J-4''' is unclear, though most western observers claim it was applied to either the MiG-15 or MiG-17.  One theory suggested that J-4 was the Chinese designation of the [[MiG-15bis]], though this was later debunked when it was found that the [[J-2]] was in fact a 15bis model.  The most likely theory (and the one followed in-game) is that the designation was applied to imported Soviet-built MiG-17As, while license-built MiG-17Fs were designated [[Shenyang F-5|Shenyang J-5 (F-5)]].
 
The usage of the designation '''J-4''' is unclear, though most western observers claim it was applied to either the MiG-15 or MiG-17.  One theory suggested that J-4 was the Chinese designation of the [[MiG-15bis]], though this was later debunked when it was found that the [[J-2]] was in fact a 15bis model.  The most likely theory (and the one followed in-game) is that the designation was applied to imported Soviet-built MiG-17As, while license-built MiG-17Fs were designated [[Shenyang F-5|Shenyang J-5 (F-5)]].
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== See also ==
 
== See also ==
 
''Links to the articles on the War Thunder Wiki that you think will be useful for the reader, for example:''
 
''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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== External links ==
 
== External links ==
 
''Paste links to sources and external resources, such as:''
 
''Paste links to sources and external resources, such as:''
−
 
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
 
* ''encyclopedia page on the aircraft;''
 
* ''encyclopedia page on the aircraft;''

Revision as of 09:59, 30 August 2020

Rank VI USSR | Premium | Golden Eagles
Su-25K Pack
J-4
mig-17_china.png
J-4
China flag.png China
V Rank
Battle rating:
AB RB SB
9.0 8.7 9.0
Class:
Research:61 000 Specs-Card-Exp.png
Purchase:340 000 Specs-Card-Lion.png
Show in game
This page is about the Soviet-built Chinese jet fighter J-4. For other versions, see MiG-17 (Family).

Description

GarageImage J-4.jpg


The J-4 is a rank V Chinese jet fighter with a battle rating of 9.0 (AB/SB) and 8.7 (RB). It was introduced in Update 1.91 "Night Vision". It is a Chinese version of the MiG-17 and performs identically to it.

General info

Flight performance

Characteristics Max Speed
(km/h at 2,000 m) 		Max altitude
(metres) 		Turn time
(seconds) 		Rate of climb
(metres/second) 		Take-off run
(metres)
AB RB AB RB AB RB
Stock 1,091 1,061 15500 22.2 23.2 41.2 39.1 475
Upgraded 1,128 1,114 21.2 21.5 59.9 50.0

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
X ✓ ✓ ✓ X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
0 450 N/A 650 450 ~12 ~5
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 600 < 700 < 750 N/A

Engine performance

Engine Aircraft mass
Engine name Number Empty mass Wing loading (full fuel)
Klimov VK-1 1 3,868 kg 223 kg/m2
Engine characteristics Mass with fuel (no weapons load) Max Takeoff
Weight
Weight (each) Type 9m fuel 20m fuel 31m fuel
892 kg Centrifugal-flow turbojet 4,209 kg 4,625 kg 5,041 kg 5,485 kg
Maximum engine thrust @ 0 m (RB / SB) Thrust to weight ratio @ 0 m (100%)
Condition 100% WEP 9m fuel 20m fuel 31m fuel MTOW
Stationary 2,450 kgf N/A 0.58 0.53 0.49 0.45
Optimal 2,450 kgf
(0 km/h) 		N/A 0.58 0.53 0.49 0.45

Survivability and armour

  • 60 mm Bulletproof glass in cockpit front.
  • 16 mm Steel plates behind the pilot.
  • 10 mm Steel plate in the nose.

Armaments

Offensive armament

Main articles: N-37D (37 mm), NR-23 (23 mm)

The J-4 is armed with:

  • 1 x 37 mm N-37D cannon, chin-mounted (40 rpg)
  • 2 x 23 mm NR-23 cannons, chin-mounted (80 rpg = 160 total)

Suspended armament

Main articles: OFAB-250-270 (250 kg), S-5K, S-5M, S-21

The J-4 can be outfitted with the following ordnance:

  • Without load
  • 2 x 250 kg OFAB-250-270 bombs (500 kg total)
  • 16 x S-5K rockets
  • 16 x S-5M rockets
  • 2 x S-21 rockets

Usage in battles

The newly gained top speed performance and manoeuvrability come at a hefty price. Turn rate and low speed flexibility are reduced, due the stronger swept wing design and weight gain.

Acceleration also takes a hit, especially on take-off the predecessor will rush ahead.

As some positive characteristics traits of the MiG-15 vanish, some negative aspects also vanish. The newly designed tail enables far better control close to Mach 0.8 (it still lacks a flying tail though) and the roll rate also significantly improved. Manual limitation set the airframe at positive 8G, with the increased control the likelihood of over stressing your airframe is easy and a steady hand required in evasive manoeuvres.

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair Compressor Offensive 23 mm BD-2-48
II New boosters Airframe Offensive 37 mm S5K
III Wings repair New 23 mm cannons S5M
IV G-suit Engine Cover New 37 mm cannons S21

Pros and cons

Pros:

  • Incredibly fast in a dive.
  • Excellent climb speed, almost same as the J-2
  • Very good manoeuvrability at low to medium speeds, also better manoeuvrability than its predecessor at high speed
  • Excellent energy retention, but if you turn too hard, expect to lose a few hundred km/h
  • Can safely reach a speed of 1,150 km/h when diving
  • Unless rolling and pulling up at the same time, its hard to break your wings in turn
  • Similarities with the J-2 means the play style between the two are quite similar

Cons:

  • Roll rate is not very good, but its still better than that of the the J-2
  • Guns are hard to aim and lead due to their relatively low muzzle velocity; small ammo capacity
  • Different trajectory performances between 23 mm and 37 mm; requires experience and practice to use the weapons
  • Poor acceleration in speeds between 800 - 1,100 km/h
  • Doesn't do well in uptiers due to lack of air-to-air missiles, afterburner and radar
  • Engine easily overheats, throttle management necessary

History

The usage of the designation J-4 is unclear, though most western observers claim it was applied to either the MiG-15 or MiG-17. One theory suggested that J-4 was the Chinese designation of the MiG-15bis, though this was later debunked when it was found that the J-2 was in fact a 15bis model. The most likely theory (and the one followed in-game) is that the designation was applied to imported Soviet-built MiG-17As, while license-built MiG-17Fs were designated Shenyang J-5 (F-5).

The MiG-17 was purchased and used by the PLAAF during the early Cold War era. It saw service alongside the MiG-15 during the Second Taiwan Strait Crisis, fighting against the ROCAF's F-86 Sabres. The two air forces were matched fairly evenly in terms of aircraft, perhaps with performance advantage going to the MiG-17s over the Sabres, but during the course of the conflict the Sabres were upgraded to use the AIM-9 Sidewinder air-to-air missile. This new weapon was used successfully to shoot down numerous Communist aircraft, starting its first combat experience on a good note. However, in late September 1958, a dud Sidewinder lodged itself in a MiG-17, which returned to base. The missile was successfully removed and eventually sent to the Soviet Union for reverse engineering. The result of this would be the very similar Vympel K-13 missile, entering service as the R-3S in 1962. The PLAAF would also license produce the K-13 as the PL-2 some years later, bringing the Sidewinder into service on the other side of the Taiwan Strait.

Information is sparse on the fate of the MiG-17 afterwards. They were most likely supplanted by the domestically produced Shenyang J-5 version and eventually phased out of service upon the introduction of sufficient quantities of the superior MiG-19/J-6 and J-7.

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.


Shenyang Aircraft Corporation (中航工业沈阳飞机工业(集团)有限公司)
Jet Fighters 
MiG-15  J-2*
MiG-17  J-4*
MiG-19  J-6A*
J-8  J-8B · J-8F
Su-27 variants  J-11* · J-11A*
Export  Shenyang F-5*
  *Licensed
Note: "J-2" and "J-4" are not official designations
See Also  Mikoyan-Gurevich Design Bureau

China jet aircraft
Fighters  J-2 · J-4 · J-6A · J-7II · J-7D · J-7E · J-8B · J-8F · J-10A · J-11 · J-11A
Strike aircraft  Q-5 early · Q-5A · Q-5L · JH-7A
Bombers  H-5
France  ␗Mirage 2000-5Ei
USA  ␗F-84G-21-RE · ␗F-84G-31-RE · ␗F-86F-30 · ␗F-86F-40 · ␗F-100A · ␗F-100F · ␗F-104A · ␗F-104G · ␗F-5A · ␗F-5E · ␗F-16A MLU
USSR  ␗MiG-9 · ␗MiG-9 (l)
North Korea  Shenyang F-5
Pakistan  A-5C · JF-17

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