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Hunter FGA.9 PACK
General characteristics
1 personCrew
4.5 tTake-off weight
4.99 kg/sBurst mass
Flight characteristics
10800 mCeiling
Daimler-Benz DB-605BEngine
waterCooling system
Speed of destruction
683 km/hStructural
325 km/hGear
Offensive armament
20 mm Akan m/45 cannonWeapon 1
140 roundsAmmunition
725 shots/minFire rate
4 x 13.2 mm Akan m/39A machine gunWeapon 2
1350 roundsAmmunition
1080 shots/minFire rate
46000 Rp icon.pngResearch
150000 Sl icon.pngPurchase
Sl icon.png10000 / 12720/14000 / 17808/6460 / 8217Repair
43000 Sl icon.pngCrew training
150000 Sl icon.pngExperts
820 Ge icon.pngAces
160 % Rp icon.pngReward for battle
400 % Sl icon.png380 % Sl icon.png120 % Sl icon.png
This page is about the Swedish fighter J21A-2. For other versions, see J21 (Family).


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.

GarageImage J21A-2.jpg

The J21A-2 is a rank IV Swedish fighter with a battle rating of 3.7 (AB/RB/SB). It was introduced in Update 1.95 "Northern Wind".

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.

Max Speed
(km/h at ?,??? m)
Max altitude
Turn time
Rate of climb
Take-off run
 ???  ??? 10800  ??.?  ??.?  ?.?  ?.?  ???
Max Speed
(km/h at ?,??? m)
Max altitude
Turn time
Rate of climb
Take-off run
666 640 10800 19.0 20.0 19.0 15.5 300


Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear
Wing-break speed
Gear limit
Combat flaps
Max Static G
+ -
 ??? ~?? ~??
Optimal velocities
< ??? < ??? < ??? > ???
Protective components found in the J21A-2.
Compressor (RB/SB)
Setting 1
Optimal altitude 100% Engine power WEP Engine power
 ?,??? m  ??? hp N/A

Survivability and 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


Offensive armament

The J21A-2 is armed with:

  • 1 x 20 mm Akan m/41A autocannon (140 RPG)
  • 2 x 13.2 mm Akan m/39A heavy machine guns - wing mounted (325 RPG)
  • 2 x 13.2 mm Akan m/39A heavy machine guns - nose mounted (350 RPG)

Usage in battles

The J21A-2 (along with the rest of the J21A variants) is an excellent energy fighter. The plane retains and gains speed very well, as long as it is flying in a straight line. In level flight or in a dive, the J21A is very fast and can outrun most of its opponents. Additionally, it can maneuver quite well compared to some of its opponents but pilots must watch to ensure their speed does not drop too low as this makes the J21A an easy target. The nose mounted armament makes it possible to sucessfully fight head-on with opponents and the 20 mm cannon is especially devastating when combined with the 13.2 mm machine guns. This armament also makes the J21A good as a bomber-interceptor since it can knock out critical components of an opponent's aircraft very quickly.

Overall, the J21A was designed (and should be used) as an interceptor. One excellent tactic is to climb at about 20 degrees until reaching 4000-5000 meters and operating from that altitude in a boom-and-zoom role. This enables the J21A to use its excellent dive speed and heavy armament to maximum effect.

Another effective tactic is to fly level and fast at medium altitude 2000-3000 meters and act as a support fighter, assiting team mates who are overwhelmed by picking off some of their opponents in hit-and-run attacks. While the J21 can maneuver quite well (especially with combat flaps) it is not advisable to do this except as a last resort because the aircraft bleeds speed very rapidly. Also, this can expose the J21's engine (mounted in the rear of the aircraft) to and an enemy, allowing him the opportunity to knock out the J21's engine or hit its fuel tank (centrally located between the cockpit and the engine). This is another reason to avoid running away from an opponent, except when you can dive faster than the enemy or outclimb him. Many planes at the J21's level can keep up with it, although many also cannot. As long as you know your opponent and their capablities, you can use the J21 very effectively.

Although the J21 can be set on fire rather easily due to its centrally located fuel tank, it is often possible to put out the fire by diving very steeply and fast. This creates enough of a slipstream around the fuselage to often put out the fire.

Manual Engine Control

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


Tier Flight performance Survivability Weaponry
I Fuselage repair Radiator Offensive 20 mm
II Compressor Airframe Offensive 13 mm
III Wings repair Engine New 20 mm cannons
IV Engine injection Cover New 13 mm MGs

Pros and cons


  • Very stable, does not stall in level flight even with the throttle set to zero
  • Retains controllability at all speeds, even when stalling
  • Engine protected from head-on attacks
  • Most armament is nose-mounted
  • Heavy armament with excellent ammunition belts


  • Pusher aircraft, engine mounted facing rear, exposed to enemy aircraft which may follow
  • Required to set convergence due to wing-mounted machine guns
  • Loses speed rapidly in sharp turns
  • Long weapon reload time


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: https://wiki.warthunder.com/(Vehicle-name)/History) and add a link to it here using the main template. Be sure to reference text and sources by using <ref>, as well as adding them at the end of the article. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under === In-game description ===, also if applicable).


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.

SAAB - Svenska AeroplanAktieBolaget, "AB" (Swedish Aeroplane Company Limited, "Ltd.")
Fighters  J21A-1 · J21A-2 · A21A-3
Jet Fighters  A21RB · J21RA · J29A · J/A29B · J29D · J29F · A32A · J32B · J35D
Bombers  B17A · B17B · B17BS
Dive-bombers  B3C · B18A · B18B · T18B-1 · T18B-2

Saab  J21A-1 · J21A-2 · A21A-3
FFVS  J22-A · J22-B
(Finland) VL  Mörkö-Morane · Pyörremyrsky
Foreign Import  J8A · Iacobi's J8A · J11 · J20 · J26