War Thunder Wiki - User contributions [en]

J21A-1

2022-05-27T14:28:52Z

U121036499: /* Flight performance */

{{About
| about = Swedish fighter '''{{PAGENAME}}'''
| usage = other versions
| link = J21 (Family)
}}
{{Specs-Card
|code=saab_j21a_1
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
|cockpit=cockpit_saab_j21a_1.jpg
}}

== Description ==


The '''{{Specs|name}}''' is a rank {{Specs|rank}} Swedish fighter {{Battle-rating}}. It was introduced in [[Update 1.95 "Northern Wind"]] along with the rest of the Swedish air tree.

== General info ==
=== Flight performance ===
{{Specs-Avia-Flight}}

The J21 series is arguably the most iconic propeller-engined aircraft to ever come out of Sweden. For the time, they were underpowered, slow aircraft that were were outclassed by nearly all opponents it could have faced. Its distinctive twin-boom, rear-engined fascia is easy to recognize and its performance is nothing to scoff at either, though the climb rate is poor and the engine overheats quickly when using WEP. The [[Akan m/39A (13.2 mm)|Akan m/39A]]'s are some of the most effective non-cannon aircraft weaponry in the game, boasting superior aspects to even the famed [[M2 Browning (12.7 mm)|M2 Browning]], specifically in terms of raw stopping power and muzzle velocity. The [[Akan m/41A (20 mm)|Akan m/41A]]'s are quite powerful as well. The challenge for the pilot is to manoeuvre this aircraft into a solid shooting solution which can be difficult especially against more agile aircraft. Although suffering from a relatively low rip speed, skilled and new pilots can use this somewhat to their advantage, mainly by diving on opponents and climbing again, although this shouldn’t be attempted at extreme speeds.

{| class="wikitable" style="text-align:center" width="70%"
! rowspan="2" | Characteristics
! colspan="2" | Max Speed (km/h at 4,300 m)
! rowspan="2" | Max altitude (metres)
! colspan="2" | Turn time (seconds)
! colspan="2" | Rate of climb (metres/second)
! rowspan="2" | Take-off run (metres)
|-
! AB !! RB !! AB !! RB !! AB !! RB
|-
! Stock
|900|||| rowspan="2" | {{Specs|ceiling}} || 21.0 || 21.9 || 12.6 || 12.6 || rowspan="2" | 300
|-
! Upgraded
| 666 || 640 || 19.0 || 20.0 || 19.0 || 15.5
|-
|}

==== Details ====
{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="5" | Features
|-
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear
|-
| ✓ || ✓ || ✓ || X || X 
|-
|}

{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="7" | Limits
|-
! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear (km/h)
! colspan="3" | Flaps (km/h)
! colspan="2" | Max Static G
|-
! Combat !! Take-off !! Landing !! + !! -
|-
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 445 || 425 || 325 || ~11 || ~5
|-
|}

{| class="wikitable" style="text-align:center"
|-
! colspan="4" | Optimal velocities (km/h)
|-
! Ailerons !! Rudder !! Elevators !! Radiator
|-
| < 450 || < 390 || < 420 || > 715
|-
|}

=== Survivability and armour ===
[[File:J21 Armour Plating.png|450px|thumb|right|Protective components found in the '''{{PAGENAME}}'''.]]
{{Specs-Avia-Armour}}


* 10 mm steel - Firewall armour plate
* 10 mm steel - Firewall cover armour plate
* 10 mm steel - Pilot's back armour plate
* 60 mm bulletproof glass

=== Modifications and economy ===
{{Specs-Economy}}

== Armaments ==
{{Specs-Avia-Armaments}}
=== Offensive armament ===
{{Specs-Avia-Offensive}}

{{main|Akan m/41A (20 mm)|Akan m/39A (13.2 mm)}}

The '''''{{PAGENAME}}''''' is armed with:

* 1 x 20 mm Akan m/41A cannon, nose-mounted (140 rpg)
* 2 x 13.2 mm Akan m/39A machine guns, nose-mounted (350 rpg = 700 total)
* 2 x 13.2 mm Akan m/39A machine guns, wing-mounted (325 rpg = 650 total)

The '''automatkanon m/41A''' is essentially a slower firing [[Hispano 404 (20 mm)|Hispano 404]] with more ammunition, with all the advantages and disadvantages that come with it. While one might think that the slower firing speed is a disadvantage, it is just high enough to still be effective and is very beneficial for conserving ammunition. It is important to note that when stock, the cannon is very inaccurate and overheats quickly, but becomes quite accurate after modifications.

The complimentary '''automatkanon m/39A''' heavy machine guns are, as mentioned previously, arguably the best non-cannon weapons in the game. Their high muzzle velocity, very high fire rate and reasonable accuracy allow them to saturate the sky with lead. The higher calibre of 13.2 mm allows for more stopping power than the typical 12.7 mm and converts them from just being a nuisance to a threat to be heeded. It is interesting to note that due to their HEF-T rounds, they technically fall under the category of "cannon", as normally exploding rounds typically start at 20 mm.

== Usage in battles ==


For pilots just beginning to learn this aircraft's flight characteristics, it is best used as a support aircraft, it is too slow to take into dives reliably and suffers from Yak-like rip speeds, without any of the benefits that the Yaks have in agility. For pilots with more experience, you can successfully push this aircraft to its limits and beyond and eliminate lesser experienced pilots in more agile aircraft or even other more experienced pilots through strong counter-manoeuvres.

==== Specific Enemies Worth Noting: ====

* '''[[P-47D-25]]/[[P-47D-28|28]]:''' The high-speed Thunderbolts are a menace in any game mode. They are some of the fastest things in the bracket and sport an octet of the late M2 Brownings that will set you ablaze in a few short bursts. While they are already quick at medium altitudes, they become even faster at high altitudes, easily blitzing past the poor J21. However, they have incredibly poor turn rates and climb just as badly. The go-to tactic versus a P-47 is to turn with it in order to get on its tail then shread it with your guns.
* '''[[M.B.157]]:''' The 157 is one of the worst enemies you can come across as it is basically a Thunderbolt that can turn and climb. Its ludicrous speed along with excellent climb rate and its above-average manoeuvrability make for an enemy that you cannot face in a 1-on-1. Your best bet is to try to head-on it if you can manage to do so. The one Achilles heel of the 157 is its low ammunition count, so try to get it to waste as much ammo as possible before it needs to disengage. At this point, you can either try to gun it down or attempt to regain altitude so you may catch it later.
* '''[[Bf 109 (Family)|Bf 109 F series]]:''' The F series of 109's are noteworthy adversaries whose strengths change with the model. The F-1 and F-2 will turn better than you and climb quite well but you are, the F-4 is almost a hard counter depending on if it runs gunpods. Without gunpods, the F-4 out-speeds, outclimbs, outturns and out-accelerates the J21, outclassing it in every way. But since most F-4's run gunpods, their decreased performance helps even the odds. Boom & Zoom the F-1 and F-2, head on the F-4 only as a last resort.

=== 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 || Controllable Auto control available || Controllable Auto control available || Controllable Auto control available || Separate || Not controllable 1 gear || Not controllable
|-
|}

=== Pros and cons ===


'''Pros:'''

* Very stable, does not stall in level flight even with the throttle set to zero
* Engine protected from head-on attacks
* Highly effective and accurate armament layout that will tear through enemies like paper
* Can take quite a few hits and still fly reasonably well
* Very high energy retention
* Easy to land thanks to its tricycle landing gear
* Rear-mounted engine makes head-ons safer (can't be hit during head-on)

'''Cons:'''

* Pusher aircraft, engine mounted facing rear, can be hit by tailing aircraft
* Fuel tanks can take damage if you pull up from a dive on an enemy plane
* Required to set convergence due to wing-mounted machine guns
* Agility is quite poor, it is subpar to most aircraft
* Engine overheats during takeoff and during flight at WEP even with full modifications
* Very low rip speed - cannot push past 640 km/h (400 mph) without threatening to rip off wings

== History ==

The SAAB 21 is a twin-boom pusher fighter and attacker designed by the famed Swedish engineer Frid Wänström, who also worked on the SAAB 29 ''Tunnan'', 32 ''Lansen'', 35 ''Draken'' and 37 ''Viggen''. In the anticipation and wake of World War 2, Sweden was concerned over its neutrality policy coming under threat by the other European countries, specifically hostile ones such as Nazi Germany. In order to deter belligerent forces and potential aggressors, the Swedish Air Force created a major plan to modernize their fleet, which included the import of foreign models such as the Italian [[J11|CR.42]] and [[J20|Re.2000]] as a stopgap measure.

Meanwhile, Swedish corporation SAAB began studying designs for the possible development of a new, high-performance fighter aircraft. Most of the designs were based around the Bristol Taurus two-row 14 cylinder radial engine developing around 1,000~1,100 horsepower. The most promising design was a twin-boom pusher layout and made use of many new features unfamiliar to the SAAB technicians and engineers at the time, but was able to compete with the other fighter aircraft at the time while also maintaining several advantages such as a heavy amount of nose-mounted armament and superior pilot visibility, along with ease of maintenance. The design was kept dormant until 41, as Sweden was beginning to see that it would not be able to procure improved foreign models as a result of the war, they started another rearmament program to adopt advanced indigenous fighter aircraft.

Accordingly, SAAB blew the dust off of their old twin-boom design and set to work. Earlier on, it was decided to replace the Bristol Taurus with an American Pratt-&-Whitney Twin Wasp, but this was changed when the engine manufacturer ''Svenska'' was requested to provide an alternative engine, which was difficult due to the time constraints. Thus, they decided that a licensed engine would be the best course of action. The legendary German Daimler-Benz DB 605 that powered many famous designs was chosen and modified to fit Swedish needs. Three prototypes were completed and its maiden flight was completed in 1942.

The type was delivered in 1945, and a total of 300 models were produced.

=== [[wt:en/news/6530-development-saab-j21a-1-nordic-exotic-en|Devblog]] ===
In 1941, Sweden started a domestic rearmament program in order to bolster the strength of its armed forces in an effort to ensure its neutrality during the ongoing war. Among the branches intended for reinforcement was the Swedish Air Force, which up until this point had mainly been operating foreign, partially outdated aircraft.

The SAAB company had already been working on a design study for a modern fighter aircraft since the early 1940s. Their project had a rather unorthodox design - a single-engine, twin-boom aircraft in a pusher configuration. With the arrival of the 1941 rearmament program, sparking a great interest for domestic aircraft production, SAAB began working on refining their design for mass production.

After further work, three full prototypes were constructed for testing, two of which were fully functional. In July 1943, the prototype of the SAAB 21 first took to the skies for its maiden flight. Production of the SAAB 21 began some time after its maiden flight, with the first aircraft reaching their units in December 1945.

Overall, over 50 J21A-1s were produced before production of the first model stopped by December 1946. In total however, close to 300 piston-engined J21s of all variants were produced before the production run of the type ended in 1949.

Due to the J21’s introduction to service coinciding with the dawn of the jet age, the type didn’t remain in active service for too long. In fact, the J21 was retired in 1954 - some ten years after its initial introduction - and its only operator remains the Swedish Air Force.

== Media ==


;Skins

* [https://live.warthunder.com/feed/camouflages/?vehicleCountry=sweden&vehicleType=aircraft&vehicleClass=fighter&vehicle=saab_j21a_1 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]

;Images
<gallery mode="packed" heights="150">
File:J21A-1 WTWallpaper 001.jpg|
File:J21A-1 WTWallpaper 002.jpg|
File:J21A-1 WTWallpaper 003.jpg|
File:J21A-1 WTWallpaper 004.jpg|
File:J21A-1 WTWallpaper 005.jpg|
File:J21A-1 WTWallpaper 006.jpg|
File:J21A-1 WTWallpaper 007.jpg|
File:J21A-1 WTWallpaper 008.jpg|
</gallery>

;Videos
{{Youtube-gallery|F2XyFpa4YEE|'''The King from Above! J21A-1 - Sweden - Review!!''' - ''Jengar''|f_fK6YbMH_Y|'''THE Must-Have Swedish Plane: J21A-1''' - ''Spit_flyer''}}

== See also ==


;Related development

* [[J21 (Family)]]

;Aircraft of comparable role and configuration

* [[S.O.8000 Narval]]

== External links ==


* [[wt:en/news/6530-development-saab-j21a-1-nordic-exotic-en|[Devblog] SAAB J21A-1: Nordic Exotic]]
* [https://forum.warthunder.com/index.php?/topic/474726-saab-j21a-1/ Official data sheet - more details about the performance]

{{AirManufacturer Saab}}
{{Sweden fighters}}

JA37C

2022-05-27T14:27:58Z

U121036499: /* Flight performance */

{{About
| about = Swedish jet fighter '''{{PAGENAME}}'''
| usage = other versions
| link = SAAB 37 Viggen (Family)
}}
{{Specs-Card
|code=saab_ja37
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
}}

== Description ==

The '''{{Specs|name}}''' is a rank {{Specs|rank}} Swedish jet fighter {{Battle-rating}}. It was introduced in [[Update "Direct Hit"]].

== General info ==
=== Flight performance ===
{{Specs-Avia-Flight}}


{| class="wikitable" style="text-align:center" width="70%"
! rowspan="2" | Characteristics
! colspan="2" | Max Speed (km/h at 9,000 m)
! rowspan="2" | Max altitude (metres)
! colspan="2" | Turn time (seconds)
! colspan="2" | Rate of climb (metres/second)
! rowspan="2" | Take-off run (metres)
|-
! AB !! RB !! AB !! RB !! AB !! RB
|-
! Stock
| 1,920 ||2500|| rowspan="2" | {{Specs|ceiling}} || 26.1 || 26.4 || 169.2 || 158.8 || rowspan="2" | 900
|-
! Upgraded
| 2,061 || 1,997 || 23.9 || 25.0 || 232.9 || 199.6
|-
|}

==== Details ====
{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="6" | Features
|-
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
|-
| X || X || ✓ || ✓ || X || X 
|-
|}

{| class="wikitable" style="text-align:center" width="50%"
|-
! colspan="7" | Limits
|-
! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear (km/h)
! colspan="3" | Flaps (km/h)
! colspan="2" | Max Static G
|-
! Combat !! Take-off !! Landing !! + !! -
|-
| 1,536  || {{Specs|destruction|gear}} || N/A || N/A || 400 || ~12 || ~4
|-
|}

{| class="wikitable" style="text-align:center"
|-
! colspan="4" | Optimal velocities (km/h)
|-
! Ailerons !! Rudder !! Elevators !! Radiator
|-
| < 865 || < 700 || < 520 || N/A
|-
|}

==== Engine performance ====
{| class="wikitable" style="text-align:center"
|-
! colspan="3" | Engine
! colspan="6" | Aircraft mass
|-
! colspan="2" | Engine name || Number
! colspan="3" | {{Annotation|Basic mass|Mass of the aircraft with pilot and engine oil, but no fuel or weapons load}} || colspan="3" | Wing loading (full fuel)
|-
| colspan="2" | Svenska Flygmotor RM8B || 1
| colspan="3" | 12,315 kg || colspan="3" | 364 kg/m2
|-
! colspan="3" | Engine characteristics
! colspan="5" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff Weight
|-
! Weight (each) || colspan="2" | Type
! 15m fuel || 20m fuel || 30m fuel || 45m fuel || 50m fuel
|-
| 2,350 kg || colspan="2" | Afterburning low-bypass turbofan
| 13,641 kg || 14,080 kg || 14,963 kg || 16,287 kg || 16,735 kg || 19,000 kg
|-
! colspan="3" | {{Annotation|Maximum engine thrust @ 0 m (RB/SB)|The maximum thrust produced by each engine, while mounted in the aircraft. NOTE: Thrust varies significantly depending on speed & altitude.}}
! colspan="6" | Thrust to weight ratio @ 0 m (WEP)
|-
! Condition || 100% || WEP
! 15m fuel || 20m fuel || 30m fuel || 45m fuel || 50m fuel || MTOW
|-
| ''Stationary'' || 6,585 kgf || 11,025 kgf
| 0.81 || 0.78 || 0.74 || 0.68 || 0.66 || 0.58
|-
| ''Optimal'' || 6,585 kgf (0 km/h) || 15,990 kgf (1,250 km/h)
| 1.17 || 1.14 || 1.07 || 0.98 || 0.96 || 0.84
|-
|}

=== Survivability and armour ===
{{Specs-Avia-Armour}}

The JA37C, being primarily a fighter-interceptor, is not equipped with any armour plating. Fuel tanks comprise much of the fuselage and wing area, and a fire will usually mean death. The elevons on the wing handle both elevator pitch and roll, so losing even 1 will make the plane nearly uncontrollable. Avoid damage at all costs, as even a damaged non-critical component will likely cause drag, making flight performance worse. As with most top tier fighters, it becomes much more challenging to fly with even a slight amount of damage compared to lower tier planes.

=== Modifications and economy ===
{{Specs-Economy}}

== Armaments ==
{{Specs-Avia-Armaments}}
{| class="wikitable" style="text-align:center"
|-
! colspan="4" | [[Ballistic Computer]]
|-
! CCIP (Guns) !! CCIP (Rockets) !! CCIP (Bombs) !! CCRP (Bombs)
|-
| {{Tick}} || {{Tick}} || {{Cross}} || {{Cross}}
|-
|}
=== Offensive armament ===
{{Specs-Avia-Offensive}}

{{main|Akan m/75 (30 mm)}}

The '''''{{PAGENAME}}''''' is armed with:

* A choice between two presets:
** 1 x 30 mm Akan m/75 cannon, belly-mounted (150 rpg)
** 1 x 30 mm Akan m/75 cannon (150 rpg) + 48 x countermeasures

=== Suspended armament ===
{{Specs-Avia-Suspended}}

{{main|RB24|RB24J|RB71|psrak m/70}}

The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:

* Without load
* 2 x RB24J missiles
* 6 x RB24 missiles
* 6 x RB24J missiles
* 2 x RB71 missiles
* 2 x RB71 missiles + 4 x RB24 missiles
* 2 x RB71 missiles + 4 x RB24J missiles
* 24 x psrak m/70 rockets
* 24 x psrak m/70 rockets + 2 x RB24 missiles
* 24 x psrak m/70 rockets + 2 x RB24J missiles
* 12 x psrak m/70 rockets + 2 x RB71 missiles + 2 x RB24 missiles
* 12 x psrak m/70 rockets + 2 x RB71 missiles + 2 x RB24J missiles

== Usage in battles ==

The Viggen is a simple and effective plane to use in realistic battles. You will notice on take-off it is a bit sluggish and won't accelerate very well, as it is heavy, but once you're above 700 km/h the thrust and aerodynamics help you accelerate better from here. The Viggen performs better compared to most fighters at lower altitudes (3,000 m and below) in terms of manoeuvrability and top speed. Taking advantage of your top speed, Doppler radar and Skyflash missiles, you can be aggressive and hit the battle early and low level to take out any attackers using your Doppler radar.

If you want to be more conservative, you can hang with your team and go around the side. The Viggen is very hard to rip, getting some altitude and coming into the fight at a supersonic dive can be very effective if you maintain your speed trying to find targets for your Skyflash missiles. If in a head-on, the Skylfash can hit targets about 6 km away at sea level if they don't change direction. It is usually very effective and hard to dodge the agile Skyflash if head to head launched at about 3 km. The motor will still be burning and your missile will maintain energy to the target. The Doppler radar will no longer track a target if it starts to turn at a 90 degree angle (this is called beaming). The radar will lose lock and the missile will be unable to track if this happens. If you have enough time, you can potentially switch to the AIM-9J to try to get a lock behind the target from here. In last resort, you can use the gun, basically an Aden, it hits hard but is hard to target with a slower velocity and is placed underneath the fuselage. It is best to give a lot of lead and aim above the target usually within 300 m it is most effective but can hit targets out to 600 m if you can get the nose in the right position.

Though it is pretty manoeuvrable at all speeds, the Viggen won't do well in any dogfight with sustained turns, it will just bleed too much energy and getting slow is the last place for a Viggen. It is heavy, slow to accelerate and a big target. So get fast, and stay fast. 30 minutes of fuel won't last long either with any afterburner in this thing. There is not much difference taking 47/52min (full tank) when your plan is to maintain a high speed and avoid dogfighting.

=== Pros and cons ===


'''Pros:'''

* Very fast at sea level, can accelerate up to Mach 1.21.
* Good energy retention
* Great agility, responsive elevons at high speeds, and a large rudder
* Low stall speed
* Strong firepower: 30 mm gun shreds everything it hits
* Agile RB71 missiles
* Good air-to-air payload with up to 6 missile pylons
* Access to countermeasures
* Easy to land: strong landing gear and access to reverse thrust
* Strong air-to-air radar with access to pulse-Doppler tracking

'''Cons:'''

* Very high fuel consumption when afterburning
* Mediocre acceleration
* Weak airbrakes
* Very sluggish at lower speeds, poor stall control
* Low ammo count and lacks access to tracer munitions
* Unconventional flaps, mostly only useful during landings

== History ==

'''Background'''

During the 1960s, advances in technology occurred rapidly alongside the aviation industry, paving the way for more complex and capable designs. In order to keep up with the rest of the industry, SAAB had to develop aircraft at a constant pace, often coming up with replacements before the predecessor had even entered service. The SAAB Viggen was sought to be the replacement for the A32A and was being considered as early as 1952. The decision of whether to make a fighter or attacker design continued for years. By the end of the '50s, project 1500 started to show potential, with a delta wing design capable of performing multiple roles through different versions. The wing design would allow for short-distance take-off and landings, following the BAS60 roadbase system requirements. These also included all-weather capability and full coverage of the 2,000 km Swedish coastline.

The 37-1 prototype took to the skies in February of 1967. The design still had to go through extensive modifying before the plane could reach the production line. The canards were angled, the wing adjusted, and the fuselage bent slightly. Much of the unorthodox appearance of the Viggen arrived from the extensive testing done on the first prototypes. When finalized, an order of AJ37 Viggens was handed over to F7 Skaraborg, becoming the first division utilizing the aircraft.

'''JA37'''
[[File:JA37 Prototype.jpg|thumb|333x333px|JA37 Prototype airborne, carrying Rb71 Skyflash missiles.]]
With the Viggen successfully replacing ageing attack and reconnaissance aircraft, the focus shifted towards the replacement of the J35 Draken. This required extensive modifying of the Viggen as a whole, as the requirements for an interceptor wouldn't be met with the powerplant and avionics used in the already existing variants. The project was extensive, redesigning most areas of the plane to fit these specifications. SAAB had to fit an internal gun, an air-to-air radar, and a new flight computer which allowed a real-time data-feed between ground stations and flight groups. One of the more complicated adjustments was the powerplant, where the engineers had to install an additional fan stage. This helped counteract the compressor stall the RM8 engine often experienced at high angles of attack, allowing the JA37 to dogfight more comfortably. These modifications were expensive, exceeding the set budget several times. But SAAB pressed on with the design until the version was fully developed.

The first completed JA37 flew on November 4th, 1977. The first service variants were delivered to F13 Bråvalla in June of 1980, while F17 Blekinge and F21 Luleå received theirs in 1981 and 1982 respectively. The JA37 would go on to be the most produced variant of the Viggen, with 147 aircraft delivered between eight different divisions. The JA37 was highly appreciated by those who flew it, and saw many modifications that extended its lifespan.

'''JA37C'''

As the 80s came to an end, the Viggen platform began to require an overhaul to bring the capabilities closer to that of other countries. The Gripen project was still years away from being completed, so an upgrade program began that would involve all JA37 in continued service being upgraded to the JA37C standard. This package introduced countermeasures, and a new signal processor, allowing the radar to track more efficiently against enemy jamming. The radar could now follow multiple targets simultaneously and also display virtual targets to enhance pilot training. This variant of the JA37 would see use up until the end of the decade, still being a capable platform for its time.

=== [[wt:en/news/7304-development-perfect-interceptor-ja37c-jaktviggen-and-premium-j35a-draken-en|Devblog]] ===
The requirements for a new aircraft with very high performance to replace the SAAB 35 Draken emerged in the early 1960s. In 1962, the design team of the SAAB company prepared a draft design of the SAAB 37 aircraft, built according to an exotic double delta wing. The project seemed interesting for military authorities , and SAAB received funding to fully develop a new fighter in four basic configurations. The last and most advanced version was the SAAB JA37 Jaktviggen fighter-interceptor, the development of which continued until the mid-1970s, which was associated with the improvement of the engine and the development of modern electronic equipment. The first flight of the experimental JA37 interceptor fighter took place in June 1974, and in 1979 the fighter began to be supplied for service. Until 1990, 149 JA37 Jaktviggen units were produced. The specific appearance made the aircraft of the J37 family a "calling card" of the Royal Swedish Air Force for a long time.

== Media ==


;Skins

* [https://live.warthunder.com/feed/camouflages/?vehicle=saab_ja37 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]

;Videos
{{Youtube-gallery|hi_oRpH0stM|'''The Shooting Range #271''' - ''Metal Beasts'' section at 01:07 discusses the {{PAGENAME}}.}}

== 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 ==


* [[wt:en/news/7304-development-perfect-interceptor-ja37c-jaktviggen-and-premium-j35a-draken-en|[Devblog] Perfect interceptor JA37C Jaktviggen and Premium J35A Draken]]
* [https://forum.warthunder.com/index.php?/topic/534245-viggen-ja-37/ Official data sheet - more details about the performance]

{{AirManufacturer Saab}}
{{Sweden jet aircraft}}