View source for JA37DI

{{Specs-Card
|code=saab_ja37di
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
}}

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

== General info ==
=== Flight performance ===
{{Specs-Avia-Flight}}
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.''

{| class="wikitable" style="text-align:center" width="70%"
! rowspan="2" | Characteristics
! colspan="2" | Max speed<br>(km/h at _,___ m)
! rowspan="2" | Max altitude<br>(metres)
! colspan="2" | Turn time<br>(seconds)
! colspan="2" | Rate of climb<br>(metres/second)
! rowspan="2" | Take-off run<br>(metres)
|-
! AB !! RB !! AB !! RB !! AB !! RB
|-
! Stock
| ___ || ___ || rowspan="2" | {{Specs|ceiling}} || __._ || __._ || __._ || __._ || rowspan="2" | ___
|-
! Upgraded
| ___ || ___ || __._ || __._ || __._ || __._
|-
|}

==== 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
|-
| _ || _ || _ || _ || _ || _     <!-- ✓ -->
|-
|}

{| 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}} || ___ || ___ || ___ || ~__ || ~__
|-
|}

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

==== Engine performance ====
{| class="wikitable" style="text-align:center"
|-
! colspan="3" | Engine
! colspan="4" | Aircraft mass
|-
! colspan="2" | Engine name || Number
! colspan="2" | {{Annotation|Basic mass|Mass of the aircraft with pilot and engine oil, but no fuel or weapons load}} || colspan="2" | Wing loading (full fuel)
|-
| colspan="2" | _____ || _
| colspan="2" | _,___ kg || colspan="2" | ___ kg/m<sup>2</sup>
|-
! colspan="3" | Engine characteristics
! colspan="3" | Mass with fuel (no weapons load) || rowspan="2" | {{Annotation|Max Gross<br>Weight|Mass of the fully equipped aircraft with heaviest weapons load}}
|-
! Weight (each) || colspan="2" | Type
! _m fuel || __m fuel || __m fuel
|-
| ___ kg || colspan="2" | ___
| _,___ kg || _,___ kg || _,___ kg || _,___ 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="4" | Thrust to weight ratio @ 0 m (___%/WEP)
|-
! Condition || 100% || ___%/WEP
! _m fuel || __m fuel || __m fuel || MGW
|-
| ''Stationary'' || ___ kgf || ___ kgf
| _.__ || _.__ || _.__ || _.__
|-
| ''Optimal'' || ___ kgf<br>(_ km/h) || ___ kgf<br>(_ km/h)
| _.__ || _.__ || _.__ || _.__
|-
|}

=== Survivability and armour ===
{{Specs-Avia-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.'' -->
''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.''

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

== Armaments ==
{{Specs-Avia-Armaments}}
{| class="wikitable" style="text-align:center"
|-
! colspan="5" | [[Ballistic Computer]]
|-
! CCIP (Guns) !! CCIP (Rockets) !! CCIP (Bombs) !! CCRP (Bombs) !! EEGS
|-
| {{Tick}} || {{Tick}} || {{Cross}} || {{Cross}} || {{Tick}}
|-
|}
=== Offensive armament ===
{{Specs-Avia-Offensive}}
<!-- ''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/75 (30 mm)}}

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

* A choice between two presets:
** 1 x 30 mm Akan m/75 cannon (150 rpg) + 48 x large calibre countermeasures
** 1 x 30 mm Akan m/75 cannon  + 48 x large calibre countermeasures + 320 x countermeasures

=== Suspended armament ===
{{Specs-Avia-Suspended}}
<!-- ''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.''

{{Navigation-Start|Default weapon presets}}
{{Navigation-First-Simple-Line}}
* 2 x RB 74 missiles + 2 x RB 99 missiles + 1 x 1,250 l drop tank
* 6 x RB 74 missiles
* 4 x RB 99 missiles
* 24 x psrak m/70 rockets
{{Navigation-End}}

== 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).'' -->
''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).''

=== 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".'' -->
''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:'''
*

'''Cons:'''
*

== 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: <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).'' -->
''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).''

== Media ==
<!-- ''Excellent additions to the article would be video guides, screenshots from the game, and photos.'' -->
''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.'' -->
''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;''
* ''other literature.'' -->
''Paste links to sources and external resources, such as:''
* ''topic on the official game forum;''
* ''other literature.''

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