Difference between revisions of "J28B"

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{{Specs-Card|code=vampire_fb5_j28b}}
 
{{Specs-Card|code=vampire_fb5_j28b}}
 
 
{{About
 
{{About
 
| about = Swedish jet fighter '''{{PAGENAME}}'''
 
| about = Swedish jet fighter '''{{PAGENAME}}'''
| usage = other version
+
| and
| link = Vampire FB 5
+
| usage = other versions
 +
| link-1 = Vampire FB 5
 +
| link-2 = Vampire FB 52A
 
}}
 
}}
  
 
== Description ==
 
== Description ==
 +
<!-- ''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]]
 +
{{Break}}
 
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Swedish jet fighter {{Battle-rating}}. It was introduced in [[Update 1.95 "Northern Wind"]].
 
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Swedish jet fighter {{Battle-rating}}. It was introduced in [[Update 1.95 "Northern Wind"]].
  
The J28B is an early war jet known as the [[Vampire FB 5]] in the British tech tree. It was ordered in large numbers by the Swedish air force to leap into the jet age. The Vampire family is known for its great dogfighting capabilities, meaning the J28B can comfortably fend off several opponents at once if controlled by a skillful pilot. This aerial performance is given at the cost of engine power.
+
The J28B is an early war jet known as the [[Vampire FB 5]] in the British tech tree. It was ordered in large numbers by the Swedish air force to leap into the jet age. The Vampire family is known for its great dogfighting capabilities, meaning the J28B can comfortably fend off several opponents at once if controlled by a skilful pilot. This aerial performance is given at the cost of engine power.
[[File:GarageImage_{{PAGENAME}}.jpg|420px|thumb|left]]
+
 
 
== General info ==
 
== General info ==
 
=== Flight performance ===
 
=== Flight performance ===
The J28B performs well at low altitude where it easily outturns most opponents it faces. Thanks to excellent flaps and air brakes, a pilot aware of his/her energy can fend off anyone that picks a fight. The flaps can be utilized at various speeds to outturn any enemy at any time. It is generally dogfights that the vampire platform shines. Although the power is lackluster, a pilot aware of his surroundings and enemies will have no difficulty avoiding incoming enemies. This lack of engine power will, however, cripple the J28B when it comes to acceleration. A vampire tends to lose a lot of speed when engaged in turning. So gaining it back to defend itself from new targets becomes a hassle. And even if a J28B pilot manages to get his/her speed up, catching a target will be close to impossible with a slow top speed. This lack of power hinders the vampire in many ways, mostly related to energy. This is why "vamp" pilots are advised to climb at the beginning of a match, despite the lack of a decent climb rate.
+
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 +
The J28B performs well at low altitude where it easily outturns most opponents it faces. Thanks to excellent flaps and air brakes, a pilot aware of his/her energy can fend off anyone that picks a fight. The flaps can be utilised at various speeds to outturn any enemy at any time. It is generally dogfights that the Vampire platform shines. Although the power is lacklustre, a pilot aware of his surroundings and enemies will have no difficulty avoiding incoming enemies. This lack of engine power will, however, cripple the J28B when it comes to acceleration. A Vampire tends to lose a lot of speed when engaged in turning. So gaining it back to defend itself from new targets becomes a hassle. And even if a J28B pilot manages to get his/her speed up, catching a target will be close to impossible with a slow top speed. This lack of power hinders the Vampire in many ways, mostly related to energy. This is why "Vamp" pilots are advised to climb at the beginning of a match, despite the lack of a decent climb rate.
 +
 
 +
The J28B performs identically to the Vampire FB 5 which should not come as a surprise. The firepower is what makes them different, however. The J28B is outfitted with the Swedish Akan m/47B (short for "Automatkanon"), which is the Swedish designation of the British Hispano Mk.V, although Even though the calibre and fire rate is the same, the burst mass is larger. This has to do with the Swedish ammunition. The Swedish ammo type contains more TNT and is fully tracer equipped, meaning stealth isn't an option. Despite this downside, the guns perform closer to the American AN/M3 guns instead of the British Hispanos, making the J28B the most effective Vampire in regards to firing. The J28B is also outfitted with several types of anti-tank and ship rockets. Despite lacking the large 1000lb bombs the FB 5 offers, the rockets offer a much different experience compared to the original model. The rockets fire one at a time held on by a Swedish rocket rack, pointing them further down than usual. The average pilot, especially the ones coming from the FB 5, will find this new placement tricky to get used to. But considering the single fire system, a skilled pilot might be able to rank up more kills in tank battles compared to the FB 5. If this becomes too sufferable, however, it is recommended to use rocket salvo instead to fire off two rockets at once, for a more traditional feel. It's not worth sacrificing accuracy for efficiency when it comes to rockets.
  
The J28B performs identically to the Vampire FB 5 which should not come as a surprise. The firepower is what makes them different, however. The J28B is outfitted with the Swedish Akan m/47B (short for "Automatkanon"), which is the Swedish designation of the British Hispano Mk.V, although Even though the caliber and fire rate is the same, the burst mass is larger. This has to do with the Swedish ammunition. The Swedish ammo type contains more TNT and is fully tracer equipped, meaning stealth isn't an option. Despite this downside, the guns perform closer to the American AN/M3 guns instead of the British Hispanos, making the J28B the most effective vampire in regards to firing. The J28B is also outfitted with several types of anti-tank and ship rockets. Despite lacking the large 1000lb bombs the FB 5 offers, the rockets offer a much different experience compared to the original model. The rockets fire one at a time held on by a Swedish rocket rack, pointing them further down than usual. The average pilot, especially the ones coming from the FB 5, will find this new placement tricky to get used to. But considering the single fire system, a skilled pilot might be able to rank up more kills in tank battles compared to the FB 5. If this becomes too sufferable, however, it is recommended to use rocket salvo instead to fire off two rockets at once, for a more traditional feel. It's not worth sacrificing accuracy for efficiency when it comes to rockets.
 
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
|-
+
! rowspan="2" | Characteristics
! colspan="8" | Characteristics
+
! colspan="2" | Max Speed<br>(km/h at 4,572 m)
|-
 
! colspan="8" | ''Stock''
 
|-
 
! colspan="2" | Max Speed<br>(km/h at 4572 m)
 
 
! rowspan="2" | Max altitude<br>(meters)
 
! rowspan="2" | Max altitude<br>(meters)
 
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Turn time<br>(seconds)
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! rowspan="2" | Take-off run<br>(meters)
 
! rowspan="2" | Take-off run<br>(meters)
 
|-
 
|-
! AB
+
! AB !! RB !! AB !! RB !! AB !! RB
! RB
 
! AB
 
! RB
 
! AB
 
! RB
 
|-
 
| 817 || 792 || {{Specs|ceiling}} || 25.0 || 25.7 || 16.1 || 15.1 || 650
 
 
|-
 
|-
! colspan="8" | ''Upgraded''
+
! Stock
 +
| 817 || 792 || rowspan="2" | {{Specs|ceiling}} || 25.0 || 25.7 || 16.1 || 15.1 || rowspan="2" | 650
 
|-
 
|-
! colspan="2" | Max Speed<br>(km/h at ?,??? m)
+
! Upgraded
! rowspan="2" | Max altitude<br>(meters)
+
| 895 || 855 || 23.5 || 24.0 || 24.4 || 20.0
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Rate of climb<br>(meters/second)
 
! rowspan="2" | Take-off run<br>(meters)
 
|-
 
! AB
 
! RB
 
! AB
 
! RB
 
! AB
 
! RB
 
|-
 
| 895 || 855 || {{Specs|ceiling}} || 23.5 || 24.0 || 24.4 || 20 || 650
 
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="5" | Features
+
! colspan="6" | Features
 
|-
 
|-
! Combat flaps
+
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
! Take-off flaps
 
! Landing flaps
 
! Air brakes
 
! Arrestor gear
 
 
|-
 
|-
| ✓ || ✓ || ✓ || ✓ || X    <!-- ✓ -->
+
| ✓ || ✓ || ✓ || ✓ || X || X    <!-- ✓ -->
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="5" | Limits
+
! colspan="7" | Limits
 
|-
 
|-
! rowspan="2" | Wing-break speed<br>(km/h)
+
! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear limit<br>(km/h)
+
! rowspan="2" | Gear (km/h)
! rowspan="2" | Combat flaps<br>(km/h)
+
! colspan="3" | Flaps (km/h)
 
! colspan="2" | Max Static G
 
! colspan="2" | Max Static G
 
|-
 
|-
! +
+
! Combat !! Take-off !! Landing !! + !! -
! -
 
 
|-
 
|-
| 888 ||350|| 520 || ~10 || ~5
+
| 888 <!--{{Specs|destruction|constructions}}--> ||330 <!--{{Specs|destruction|chassis}}--> || 520 || ___ || 300 || ~10 || ~5
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="4" | Optimal velocities
+
! colspan="4" | Optimal velocities (km/h)
 
|-
 
|-
! Ailerons<br>(km/h)
+
! Ailerons !! Rudder !! Elevators !! Radiator
! Rudder<br>(km/h)
 
! Elevators<br>(km/h)
 
! Radiator<br>(km/h)
 
 
|-
 
|-
 
| < 550 || < 600 || < 600 || N/A
 
| < 550 || < 600 || < 600 || N/A
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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.'' -->
 +
* 38 mm Bulletproof glass - Armoured windscreen
 +
* 12.7 mm Steel  - Armour plate behind the pilot's head
 +
* 3 mm Steel - Armour plate under the engine
  
* 38 mm Bulletproof glass - Armored windscreen
+
The J28B has the same armour as the Vampire FB 5 as well as the Italian [[Vampire FB 52A]]. Despite being dangerous in a head-on due to the beefed-up guns, a J28B should never fully commit to a head-on engagement, the bulletproof glass will, however, save the pilot most of the time. The tail section is not easily saved though. The twin-boom makes it twice as likely to hit the traction of control surfaces. This leaves the J28B completely useless usually resulting in abandonment of the aircraft, which should be avoided at all costs.
* 12.7 mm Steel  - Armor plate behind the pilot's head
 
* 3 mm Steel - Armor plate under the engine
 
 
 
The J28B has the same armour as the Vampire FB 5 as well as the Italian [[Vampire FB 52A]]. Despite being dangerous in a head-on due to the beefed-up guns, A J28B should never fully commit to a headon engagement, the bulletproof glass will, however, save the pilot most of the time. The tail section is not easily saved though. The twin-boom makes it twice as likely to hit the traction of control surfaces. This leaves the J28B completely useless usually resulting in abandonment of the aircraft, which should be avoided at all costs.
 
  
 
== 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|Akan m/47B (20 mm)}}
 
{{main|Akan m/47B (20 mm)}}
  
 
The '''''{{PAGENAME}}''''' is armed with:
 
The '''''{{PAGENAME}}''''' is armed with:
 
+
* 4 x 20 mm Akan m/47B cannons, chin-mounted (150 rpg = 600 total)
* 4 x 20 mm Akan m/47B autocannons (150 RPG - 600 rounds 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|m/49A|m/51|m/49}}
+
{{main|m/49|m/49A|m/51}}
 
 
The '''''{{PAGENAME}}''''' can be outfitted with the following suspended ordnance:
 
  
 +
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
* Without load
 
* Without load
* 8 x m/49A unguided rockets
+
* 8 x m/49A rockets
* 8 x m/51 unguided rockets
+
* 8 x m/51 rockets
* 4 x m/49 unguided rockets
+
* 4 x m/49 rockets
  
 
== Usage in battles ==
 
== Usage in battles ==
A J28B pilot should always be aware of his/her speed and altitude, or energy in more advanced terms. To avoid enemies with superior engine power using you as a boom and zoom target, a J28B pilot should use altitude to their advantage. Since the vampire platform is bad at building up energy, the pilot should store as much energy as possible for when the battle begins. Before engaging targets, it can also be useful to always keep a speed of at least 400kph to limit the number of options an enemy has to counterattack. This also helps the J28B to swiftly turn around and begin a dogfight if the opponent commits to one. This playstyle can be applied to every vampire plane in the game since they perform mostly the same. The J28B has to watch out for [[Ho 229 V3]] players, however, since they can outmatch the J28B in turning. A good way to counter the Horten is to make it bleed speed. Forcing it to turn once or twice and then extending away from the enemy aircraft.
+
<!-- ''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).'' -->
 +
A J28B pilot should always be aware of his/her speed and altitude, or energy in more advanced terms. To avoid enemies with superior engine power using you as a boom and zoom target, a J28B pilot should use altitude to their advantage. Since the Vampire platform is bad at building up energy, the pilot should store as much energy as possible for when the battle begins. Before engaging targets, it can also be useful to always keep a speed of at least 400 km/h to limit the number of options an enemy has to counterattack. This also helps the J28B to swiftly turn around and begin a dogfight if the opponent commits to one. This playstyle can be applied to every Vampire plane in the game since they perform mostly the same. The J28B has to watch out for [[Ho 229 V3]] players, however, since they can outmatch the J28B in turning. A good way to counter the Horten is to make it bleed speed. Forcing it to turn once or twice and then extending away from the enemy aircraft.
  
A playstyle close to that of a propeller-driven aircraft can be applied. Where energy is the key to survival. The J28B has quite the firepower compared to the other vampire models. This can reward players who can safely head-on from a distance and then avoid incoming shots from the enemy. This will usually result in a crit or kill if the enemy doesn't avoid as well. The fired rounds are quite deadly and require less guntime compared to the British counterpart. This gives the J28B an overall higher chance of surviving since it can afford to spend less time on each target. A pilot comfortable with his or her aim will easily outsmart opponents and make them think twice before engaging in a dogfight.
+
A playstyle close to that of a propeller-driven aircraft can be applied. Where energy is the key to survival. The J28B has quite the firepower compared to the other Vampire models. This can reward players who can safely head-on from a distance and then avoid incoming shots from the enemy. This will usually result in a crit or kill if the enemy doesn't avoid as well. The fired rounds are quite deadly and require less guntime compared to the British counterpart. This gives the J28B an overall higher chance of surviving since it can afford to spend less time on each target. A pilot comfortable with his or her aim will easily outsmart opponents and make them think twice before engaging in a dogfight.
 
 
=== Manual Engine Control ===
 
{| class="wikitable" style="text-align:center"
 
|-
 
! colspan="7" | MEC elements
 
|-
 
! rowspan="2" | Mixer
 
! rowspan="2" | Pitch
 
! colspan="3" | Radiator
 
! rowspan="2" | Supercharger
 
! rowspan="2" | Turbocharger
 
|-
 
! Oil
 
! Water
 
! Type
 
|-
 
| Not controllable || rowspan="2" | Not controllable<br>Not auto controlled || rowspan="2" | Not controllable<br>Auto control available || rowspan="2" | Not controllable<br>Auto control available || rowspan="2" | Separate || rowspan="2" | Not controllable<br>1 gear || rowspan="2" | Not controllable
 
|-
 
|}
 
  
 
=== Modules ===
 
=== Modules ===
 
{| class="wikitable"
 
{| class="wikitable"
! colspan="1" | Tier
+
! Tier
 
! colspan="2" | Flight performance
 
! colspan="2" | Flight performance
! colspan="1" | Survivability
+
! Survivability
 
! colspan="2" | Weaponry
 
! colspan="2" | Weaponry
 
|-
 
|-
 
| I
 
| I
 
| Fuselage repair
 
| Fuselage repair
| Radiator
+
|
 
|
 
|
 
| Offensive 20 mm
 
| Offensive 20 mm
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| Engine
 
| Engine
 
|
 
|
| New 20mm cannons
+
| New 20 mm cannons
|m/51
+
| m/51
 
|-
 
|-
 
| IV
 
| IV
|G-suit
+
| G-suit
 
|
 
|
 
| Cover
 
| Cover
 
|
 
|
|m/49
+
| m/49
 
|-
 
|-
 
|}
 
|}
  
 
=== 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".'' -->
 +
 
'''Pros:'''
 
'''Pros:'''
 
 
* Great turning and dogfighting capabilities.
 
* Great turning and dogfighting capabilities.
 
* Stronger guns than the British/Italian counterpart.
 
* Stronger guns than the British/Italian counterpart.
 
* Effective air-brakes that generate lift once deployed.
 
* Effective air-brakes that generate lift once deployed.
 
* Decent ammo count.
 
* Decent ammo count.
 
 
* Easy to land.
 
* Easy to land.
 
*
 
  
 
'''Cons:'''
 
'''Cons:'''
 
 
* Slow top speed.
 
* Slow top speed.
 
* Poor rate of climb.
 
* Poor rate of climb.
 
* Low gun placement forcing pilots to aim higher than usual.
 
* Low gun placement forcing pilots to aim higher than usual.
 
* Weak tail section that often suffers damage from enemy fire.
 
* Weak tail section that often suffers damage from enemy fire.
 
*
 
  
 
== History ==
 
== History ==
The Swedish air force studied carefully what was happening at the front of the 2nd world war, and by 1944 it was already obvious that the propeller era was coming to a close. By early 1945, the Swedes had already begun a project to power the Saab J21 with a ramjet. However, it seemed this project would take far too long. By autumn of 1945, the J29 project was also beginning to take shape. But even this project wouldn't take to the skies until 1949, so a foreign design had to do until then.
+
<!-- ''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 Swedish air force carefully studied what was happening at the Fronts in WWII, and by 1944 it was already obvious that the propeller era was coming to a close. By early 1945, the Swedes had already begun a project to power the Saab J21 with a ramjet. However, it seemed this project would take far too long. By autumn of 1945, the J29 project was also beginning to take shape. But even this project wouldn't take to the skies until 1949, so a foreign design had to do until then.
  
The British De Havilland Vampire was one of the first jet-powered fighter planes to enter the market, and Sweden was very interested in this design. In early 1946, Sweden ordered 70 Vampire F Mk 1 models designated J28A, thus becoming one of the first customers of the Vampire. This version was mostly used as practice for the new era of jet-driven aircraft. But the Swedes became fond of the design. So when the export version of the Vampire FB 5 entered the market known as the Mk 50, Sweden was very interested and orders started in 1949. This version was to be known as the J28B or A28B depending on suspended armaments. This version differed from the Mk 1 by having a renewed, rounder tail section, and a lower placed elevator. The engine was upgraded from the RM1 to the RM1A that was now produced by SFA (Svenska flygmotor AB) in Sweden and delivered to de Havilland in Britain for installation. The main armament was also changed from the Hispano Mk II to the more potent Hispano Mk V. By 1952, 310 J28B vampires had been delivered to Sweden. 12 of these would be rebuilt as a two-seat trainer, known as the J28C-3.
+
The British de Havilland Vampire was one of the first jet-powered fighter planes to enter the market, and Sweden was very interested in this design. In early 1946, Sweden ordered 70 Vampire F Mk 1 models designated J28A, thus becoming one of the first customers of the Vampire. This version was mostly used as practice for the new era of jet-driven aircraft. But the Swedes became fond of the design. So when the export version of the Vampire FB 5 entered the market known as the Mk 50, Sweden was very interested and orders started in 1949. This version was to be known as the J28B or A28B depending on suspended armaments. This version differed from the Mk 1 by having a renewed, rounder tail section, and a lower placed elevator. The engine was upgraded from the RM1 to the RM1A that was now produced by SFA (Svenska flygmotor AB) in Sweden and delivered to de Havilland in Britain for installation. The main armament was also changed from the Hispano Mk II to the more potent Hispano Mk V. By 1952, 310 J28B Vampires had been delivered to Sweden. 12 of these would be rebuilt as a two-seat trainer, known as the J28C-3.
  
 
== Media ==
 
== Media ==
Line 243: Line 195:
 
;Videos-->
 
;Videos-->
 
== 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;''
 +
* ''links to approximate analogues of other nations and research trees.'' -->
 
'''Vampire family'''
 
'''Vampire family'''
  
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== External links ==
 
== External links ==
 
+
<!-- ''Paste links to sources and external resources, such as:''
 
* ''topic on the official game forum;''
 
* ''topic on the official game forum;''
* [[wikipedia:De_Havilland_Vampire|(en.wikipedia.org website) - De havilland vampire]]
+
* ''encyclopedia page on the aircraft;''
* [https://aef.se/Flygvapnet/Notiser/J28A,_B,_C_Vampire_notis_2.htm (aef.se website) - De Havilland Vampire - Flygvapnets första jetflygplan]
+
* ''other literature.'' -->
* [https://svfplhist.home.blog/fpl-28-i-flygvapnet/ (svfplhist.home.blog website) - Fpl 28 - I flygvapnet]
+
* [[wikipedia:De_Havilland_Vampire|[Wikipedia] De Havilland Vampire]]
 +
* [https://aef.se/Flygvapnet/Notiser/J28A,_B,_C_Vampire_notis_2.htm [aef.se<nowiki>]</nowiki> De Havilland Vampire - Flygvapnets första jetflygplan]
 +
* [https://svfplhist.home.blog/fpl-28-i-flygvapnet/ [svfplhist.home.blog<nowiki>]</nowiki> - Fpl 28 - I flygvapnet]
  
[[Category:Sweden aircraft]]
 
 
{{AirManufacturer deHavilland}}
 
{{AirManufacturer deHavilland}}
{{Template:Sweden_jet_aircraft}}
+
{{Sweden jet aircraft}}

Revision as of 16:27, 10 January 2020

VTOL | Rank 5 USSR
Yak-38 Pack
vampire_fb5_j28b.png
J28B
AB RB SB
7.7 7.3 7.7
Research:99 000 Specs-Card-Exp.png
Purchase:390 000 Specs-Card-Lion.png
Show in game
This page is about the Swedish jet fighter J28B. For other versions, see Vampire FB 5 and Vampire FB 52A.

Description

GarageImage J28B.jpg


The J28B is a rank V Swedish jet fighter with a battle rating of 7.7 (AB/SB) and 7.3 (RB). It was introduced in Update 1.95 "Northern Wind".

The J28B is an early war jet known as the Vampire FB 5 in the British tech tree. It was ordered in large numbers by the Swedish air force to leap into the jet age. The Vampire family is known for its great dogfighting capabilities, meaning the J28B can comfortably fend off several opponents at once if controlled by a skilful pilot. This aerial performance is given at the cost of engine power.

General info

Flight performance

The J28B performs well at low altitude where it easily outturns most opponents it faces. Thanks to excellent flaps and air brakes, a pilot aware of his/her energy can fend off anyone that picks a fight. The flaps can be utilised at various speeds to outturn any enemy at any time. It is generally dogfights that the Vampire platform shines. Although the power is lacklustre, a pilot aware of his surroundings and enemies will have no difficulty avoiding incoming enemies. This lack of engine power will, however, cripple the J28B when it comes to acceleration. A Vampire tends to lose a lot of speed when engaged in turning. So gaining it back to defend itself from new targets becomes a hassle. And even if a J28B pilot manages to get his/her speed up, catching a target will be close to impossible with a slow top speed. This lack of power hinders the Vampire in many ways, mostly related to energy. This is why "Vamp" pilots are advised to climb at the beginning of a match, despite the lack of a decent climb rate.

The J28B performs identically to the Vampire FB 5 which should not come as a surprise. The firepower is what makes them different, however. The J28B is outfitted with the Swedish Akan m/47B (short for "Automatkanon"), which is the Swedish designation of the British Hispano Mk.V, although Even though the calibre and fire rate is the same, the burst mass is larger. This has to do with the Swedish ammunition. The Swedish ammo type contains more TNT and is fully tracer equipped, meaning stealth isn't an option. Despite this downside, the guns perform closer to the American AN/M3 guns instead of the British Hispanos, making the J28B the most effective Vampire in regards to firing. The J28B is also outfitted with several types of anti-tank and ship rockets. Despite lacking the large 1000lb bombs the FB 5 offers, the rockets offer a much different experience compared to the original model. The rockets fire one at a time held on by a Swedish rocket rack, pointing them further down than usual. The average pilot, especially the ones coming from the FB 5, will find this new placement tricky to get used to. But considering the single fire system, a skilled pilot might be able to rank up more kills in tank battles compared to the FB 5. If this becomes too sufferable, however, it is recommended to use rocket salvo instead to fire off two rockets at once, for a more traditional feel. It's not worth sacrificing accuracy for efficiency when it comes to rockets.

Characteristics Max Speed
(km/h at 4,572 m)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
Stock 817 792 10668 25.0 25.7 16.1 15.1 650
Upgraded 895 855 23.5 24.0 24.4 20.0

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
X X
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
888 330 520 ___ 300 ~10 ~5
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 550 < 600 < 600 N/A
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
3,000 m 1,224 hp N/A

Survivability and armour

  • 38 mm Bulletproof glass - Armoured windscreen
  • 12.7 mm Steel - Armour plate behind the pilot's head
  • 3 mm Steel - Armour plate under the engine

The J28B has the same armour as the Vampire FB 5 as well as the Italian Vampire FB 52A. Despite being dangerous in a head-on due to the beefed-up guns, a J28B should never fully commit to a head-on engagement, the bulletproof glass will, however, save the pilot most of the time. The tail section is not easily saved though. The twin-boom makes it twice as likely to hit the traction of control surfaces. This leaves the J28B completely useless usually resulting in abandonment of the aircraft, which should be avoided at all costs.

Armaments

Offensive armament

Main article: Akan m/47B (20 mm)

The J28B is armed with:

  • 4 x 20 mm Akan m/47B cannons, chin-mounted (150 rpg = 600 total)

Suspended armament

Main articles: m/49, m/49A, m/51

The J28B can be outfitted with the following ordnance:

  • Without load
  • 8 x m/49A rockets
  • 8 x m/51 rockets
  • 4 x m/49 rockets

Usage in battles

A J28B pilot should always be aware of his/her speed and altitude, or energy in more advanced terms. To avoid enemies with superior engine power using you as a boom and zoom target, a J28B pilot should use altitude to their advantage. Since the Vampire platform is bad at building up energy, the pilot should store as much energy as possible for when the battle begins. Before engaging targets, it can also be useful to always keep a speed of at least 400 km/h to limit the number of options an enemy has to counterattack. This also helps the J28B to swiftly turn around and begin a dogfight if the opponent commits to one. This playstyle can be applied to every Vampire plane in the game since they perform mostly the same. The J28B has to watch out for Ho 229 V3 players, however, since they can outmatch the J28B in turning. A good way to counter the Horten is to make it bleed speed. Forcing it to turn once or twice and then extending away from the enemy aircraft.

A playstyle close to that of a propeller-driven aircraft can be applied. Where energy is the key to survival. The J28B has quite the firepower compared to the other Vampire models. This can reward players who can safely head-on from a distance and then avoid incoming shots from the enemy. This will usually result in a crit or kill if the enemy doesn't avoid as well. The fired rounds are quite deadly and require less guntime compared to the British counterpart. This gives the J28B an overall higher chance of surviving since it can afford to spend less time on each target. A pilot comfortable with his or her aim will easily outsmart opponents and make them think twice before engaging in a dogfight.

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair Offensive 20 mm
II Compressor Airframe m/49A
III Wings repair Engine New 20 mm cannons m/51
IV G-suit Cover m/49

Pros and cons

Pros:

  • Great turning and dogfighting capabilities.
  • Stronger guns than the British/Italian counterpart.
  • Effective air-brakes that generate lift once deployed.
  • Decent ammo count.
  • Easy to land.

Cons:

  • Slow top speed.
  • Poor rate of climb.
  • Low gun placement forcing pilots to aim higher than usual.
  • Weak tail section that often suffers damage from enemy fire.

History

The Swedish air force carefully studied what was happening at the Fronts in WWII, and by 1944 it was already obvious that the propeller era was coming to a close. By early 1945, the Swedes had already begun a project to power the Saab J21 with a ramjet. However, it seemed this project would take far too long. By autumn of 1945, the J29 project was also beginning to take shape. But even this project wouldn't take to the skies until 1949, so a foreign design had to do until then.

The British de Havilland Vampire was one of the first jet-powered fighter planes to enter the market, and Sweden was very interested in this design. In early 1946, Sweden ordered 70 Vampire F Mk 1 models designated J28A, thus becoming one of the first customers of the Vampire. This version was mostly used as practice for the new era of jet-driven aircraft. But the Swedes became fond of the design. So when the export version of the Vampire FB 5 entered the market known as the Mk 50, Sweden was very interested and orders started in 1949. This version was to be known as the J28B or A28B depending on suspended armaments. This version differed from the Mk 1 by having a renewed, rounder tail section, and a lower placed elevator. The engine was upgraded from the RM1 to the RM1A that was now produced by SFA (Svenska flygmotor AB) in Sweden and delivered to de Havilland in Britain for installation. The main armament was also changed from the Hispano Mk II to the more potent Hispano Mk V. By 1952, 310 J28B Vampires had been delivered to Sweden. 12 of these would be rebuilt as a two-seat trainer, known as the J28C-3.

Media

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

See also

Vampire family

Similar aircraft

External links


de Havilland Aircraft Company Limited
Fighters  Hornet Mk.III · Mosquito FB Mk VI · Mosquito FB Mk XVIII
Jet Fighters  Vampire FB 5 · Venom FB.4 · Sea Venom FAW 20
Export  Mosquito FB.Mk.26 · Vampire FB 52A · J28B

Sweden jet aircraft
Saab 
Fighters  J21RA · A21RB · J29A · J/A29B · J29D · J29F · A32A · J32B · J35D
Attackers  SK60B · SAAB-105G · SAAB-105ÖE
Foreign import  J28B