Difference between revisions of "J21RA"
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! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute | ! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute | ||
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| − | | ✓ || ✓ || ✓ || | + | | ✓ || ✓ || ✓ || ✓ || X || X <!-- ✓ --> |
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[[File:J21 Armour Plating.png|450px|thumb|right|Protective components found in the '''{{PAGENAME}}'''.]] | [[File:J21 Armour Plating.png|450px|thumb|right|Protective components found in the '''{{PAGENAME}}'''.]] | ||
<!-- ''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.'' --> | ||
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* 10 mm steel - Firewall armour plate | * 10 mm steel - Firewall armour plate | ||
* 10 mm steel - Firewall cover armour plate | * 10 mm steel - Firewall cover armour plate | ||
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The '''''{{PAGENAME}}''''' is armed with: | The '''''{{PAGENAME}}''''' is armed with: | ||
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* 1 x 20 mm Akan m/45 cannon, nose-mounted (140 rpg) | * 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 = 750 total) | * 2 x 12.7 mm Akan m/39A machine guns, nose-mounted (350 rpg = 750 total) | ||
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'''Pros:''' | '''Pros:''' | ||
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* Good turn rate compared to other jets | * Good turn rate compared to other jets | ||
* Decent armament | * Decent armament | ||
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'''Cons:''' | '''Cons:''' | ||
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* Slow for a jet | * Slow for a jet | ||
* Climb might be the worst in comparison to others in its battle rating | * Climb might be the worst in comparison to others in its battle rating | ||
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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:'' | ||
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* ''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:'' | ||
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* ''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 14:37, 10 June 2020
Contents
| This page is about the Swedish jet fighter J21RA. For other versions, see J21 (Family). |
Description
The J21RA 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
Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.
| Characteristics | Max Speed (km/h at 4,000 m) |
Max altitude (metres) |
Turn time (seconds) |
Rate of climb (metres/second) |
Take-off run (metres) | |||
|---|---|---|---|---|---|---|---|---|
| AB | RB | AB | RB | AB | RB | |||
| Stock | 763 | 744 | 12192 | 25.1 | 25.9 | 18.0 | 17.3 | 850 |
| Upgraded | 836 | 799 | 23.0 | 24.0 | 24.4 | 21.0 | ||
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 | + | - | ||
| 787 | 360 | 460 | 460 | 260 | ~11 | ~5 |
| Optimal velocities (km/h) | |||
|---|---|---|---|
| Ailerons | Rudder | Elevators | Radiator |
| < 450 | < 390 | < 420 | N/A |
Engine performance
| Engine | Aircraft mass | |||||
|---|---|---|---|---|---|---|
| Engine name | Number | Empty mass | Wing loading (full fuel) | |||
| Svenska Flygmotor RM1 | 1 | 3,420 kg | 188 kg/m2 | |||
| Engine characteristics | Mass with fuel (no weapons load) | Max Takeoff Weight | ||||
| Weight (each) | Type | 6m fuel | 20m fuel | 22m fuel | ||
| 705 kg | Centrifugal-flow turbojet | 3,654 kg | 4,107 kg | 4,172 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 | 22m fuel | MTOW |
| Stationary | 1,290 kgf | N/A | 0.35 | 0.31 | 0.31 | 0.26 |
| Optimal | 1,290 kgf (0 km/h) |
N/A | 0.35 | 0.31 | 0.31 | 0.26 |
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
Armaments
Offensive armament
The J21RA 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 = 750 total)
- 2 x 12.7 mm Akan m/39A machine guns, wing-mounted (325 rpg = 650 total)
Usage in battles
One way to operate this aircraft is to zoom climb up to about 2.5k-3k meters and then drop on a low and slow jet. Staying on someones tail is very easy with this plane and its defensive flying is quite effective.
Modules
| Tier | Flight performance | Survivability | Weaponry | ||
|---|---|---|---|---|---|
| I | Fuselage repair | Offensive 20 mm | |||
| II | New boosters | Compressor | Airframe | Offensive 12 mm | |
| III | Wings repair | Engine | New 20 mm cannons | ||
| IV | G-suit | Cover | New 12 mm MGs | ||
Pros and cons
Pros:
- Good turn rate compared to other jets
- Decent armament
- Good low-speed performance when utilising flaps
Cons:
- Slow for a jet
- Climb might be the worst in comparison to others in its battle rating
- Bad energy retention
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: 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).
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.
| Swedish Aeroplane Company Ltd. (SAAB) | |
|---|---|
| Pre-SAAB: ASJA | J6B |
| Fighters | J21A-1 · J21A-2 · A21A-3 |
| Jet fighters | A21RB · J21RA · J29A · A29B · J29D · J29F · J32B · J35A · J35D · JA37C · JA37D · JAS39A |
| Jet attackers | A32A · A32A Röd Adam · AJ37 · AJS37 · SAAB-105G · SK60B |
| Bombers | B17A · B17B · S17BS |
| Dive-bombers | B3C · B18A · B18B · T18B · T18B (57) |
| Export | SAAB-105OE · Saab J35XS · JAS39C · ◔JAS39EBS HU C |
| Sweden jet aircraft | |
|---|---|
| Fighters | J21RA |
| J29A · A29B · J29D · J29F | |
| J32B | |
| J34 | |
| J35A · J35D | |
| JA37C · JA37D | |
| JAS39A | |
| Strike aircraft | A21RB |
| A32A · A32A Röd Adam | |
| A28B | |
| AJ37 · AJS37 | |
| SK60B · SAAB-105G | |
| Export | SAAB-105OE |
| Finland | ▄Vampire FB 52A · ▄MiG-21bis · Saab J35XS |
