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General characteristics
1 personCrew
5.0 tTake-off weight
3.86 kg/sBurst mass
Flight characteristics
12 192 mCeiling
Svenska Flygmotor RM1AEngine
airCooling system
Speed of destruction
787 km/hStructural
360 km/hGear
Offensive armament
20 mm Akan m/45 cannonWeapon 1
140 roundsAmmunition
725 shots/minFire rate
4 x 12.7 mm Akan m/39A machine gunWeapon 2
1 350 roundsAmmunition
768 shots/minFire rate
Suspended armament
8 x 8 mm Ksp m/22 machine gunSetup 1
10 x m/49A rocketsSetup 2
10 x 15 cm srak m/51 rocketsSetup 3
5 x 18 cm hprak m/49 rocketsSetup 4
92 000 Rp icon.pngResearch
370 000 Sl icon.pngPurchase
Sl icon.png10 880 / 14 905/9 330 / 12 782/4 490 / 6 151Repair
110 000 Sl icon.pngCrew training
370 000 Sl icon.pngExperts
1 700 Ge icon.pngAces
196 % Rp icon.pngReward for battle
390 % Sl icon.png230 % Sl icon.png130 % Sl icon.png
This page is about the Swedish jet fighter A21RB. For other versions, see J21 (Family).


GarageImage A21RB.jpg

The A21RB is a rank V Swedish jet fighter with a battle rating of 6.7 (AB/RB/SB). It was introduced in Update 1.95 "Northern Wind".

General info

Flight performance

The A21RB is a very manoeuvrable jet with a good climb rate for an early jet. The guns, although a downgrade from the previous propeller-driven version of the plane provides enough firepower to down targets efficiently unless a snapshot is required. It does however have a very low rip speed, preventing you from diving on or chasing most of the opponents you'll be facing. Mounting rockets increases your drag by a huge amount, reducing your top speed by several hundred km/h while making you almost unable to climb.

Characteristics Max Speed
(km/h at 2,000 m)
Max altitude
Turn time
Rate of climb
Take-off run
Stock 811 789 12 192 25.1 25.7 21.0 20.3 850
Upgraded 878 850 23.0 24.0 28.4 24.5


Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
787 360 460 460 260 ~10 ~5
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 450 < 390 < 420 N/A

Engine performance

Protective components found in the A21RB.
Engine Aircraft mass
Engine name Number Empty mass Wing loading (full fuel)
Svenska Flygmotor RM1A 1 3,505 kg 192 kg/m2
Engine characteristics Mass with fuel (no weapons load) Max Takeoff
Weight (each) Type 6m fuel 20m fuel
705 kg Centrifugal-flow turbojet 3,759 kg 4,257 kg 5,000 kg
Maximum engine thrust @ 0 m (RB / SB) Thrust to weight ratio @ 0 m (100%)
Condition 100% WEP 6m fuel 20m fuel MTOW
Stationary 1,420 kgf N/A 0.41 0.33 0.28
Optimal 1,420 kgf
(0 km/h)
N/A 0.41 0.33 0.28

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 A21RB is armed with:

  • 1 x 20 mm Akan m/45 cannon, nose-mounted (140 rpg)
  • 2 x 12.7 mm Akan m/39A machine guns, nose-mounted (350 rpg = 700 total)
  • 2 x 12.7 mm Akan m/39A machine guns, wing-mounted (325 rpg = 650 total)

Suspended armament

Main articles: m/49, m/49A, m/51, Ksp m/22 (8 mm)

The A21RB can be outfitted with the following ordnance:

  • Without load
  • 8 x 8 mm Ksp m/22 machine guns, belly-mounted (gunpod) (100 rpg = 800 total)
  • 10 x m/49A rockets
  • 10 x m/51 rockets
  • 5 x m/49 rockets

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).


Tier Flight performance Survivability Weaponry
I Fuselage repair Offensive 20 mm Offensive 8 mm
II New boosters Compressor Airframe New 20 mm cannons m/49A
III Wings repair Engine Offensive 12 mm New 8 mm MGs m/51
IV G-suit Cover New 12 mm MGs m/49

Pros and cons


  • Able to mount very powerful and accurate rockets for ground attack
  • Upgraded engine compared to the comparable J21RA, giving you a better climb rate
  • Very familiar layout for seasoned Swede Pilots (It's literally a J21A with a jet engine)
  • Comes with airbrakes to prevent reaching the rip speed


  • Small fuel tank with limited fuel choice. Only able to choose a full tank (20 minutes) or a 9 minute tank
  • Engine fuel starvation if upside down for too long
  • Rocket ramp is rendered as a solid object, reducing your maximum speed by almost one hundred kph
  • Gun-pod only has 800 rounds in total spread between all guns
  • Extremely low rip speed for a jet, 787 km/h
  • 12.7 mm machine-guns instead of the 13.2 mm of the previous propeller-driven version of the plane, severely reducing firepower


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></ref>, as well as adding them at the end of the article with <references />. 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

Sweden jet aircraft
Saab  J21RA · A21RB · J29A · J/A29B · J29D · J29F · A32A · J32B · J35D
Foreign import  J28B