Difference between revisions of "G.91 YS"

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The '''{{Specs|name}}''' is a rank {{Specs|rank}} Italian jet fighter {{Battle-rating}}. It was introduced in [[Update 1.87 "Locked On"]].
 
The '''{{Specs|name}}''' is a rank {{Specs|rank}} Italian jet fighter {{Battle-rating}}. It was introduced in [[Update 1.87 "Locked On"]].
 +
 +
The {{PAGENAME}} is a multi-role fighter which first debuted in 1966. Based largely on earlier Fiat G.91 fighters, the G.91 YS was a complete redesign but kept the basic shape of the G.91 series. The biggest difference between the two types was the conversion from a single-engine to two General Electric J85 turbojets outfitted with afterburners. This conversion alone resulted in a 60% increase in the aircraft's thrust, however, it was not enough for this jet to become supersonic even when in a dive.
 +
 +
In similar fashion to the earlier French fighter, the [[Super_Mystere_B2|Super Mystere B2]], the {{PAGENAME}} was outfitted with dual 30 mm DEFA autocannons in the cheeks of the forward fuselage.  Also in the same vein, the {{PAGENAME}} was built to be a multi-role fighter as a fighter-interceptor or a fighter-bomber. Due to the increased power of the dual engines, this fighter when acting in a bomber role has the ability to carry up to 4,000 lbs of bombs, though configurations as low as 1,000 lbs is available. FFAR Mighty Mouse unguided rockets are another good option for taking out softer ground targets in which the larger 500 – 1,000 lb bombs would otherwise be overkill.
 +
 +
The {{PAGENAME}} while lacking in the supersonic flight department is a feisty little fellow which can still hold its own in an air-to-air combat role. The dual autocannons can make quick work of any head-on attacks provided the pilot gets out of the way of incoming bullets in return. AIM-9B Sidewinder missiles prove themselves very effective especially against slower targets such as bombers and helicopters but are a bit more difficult to achieve success against other fighters due to their ability to pull high-g manoeuvres and break the missile lock and avoid them.
 +
 +
The pilot has the option to change up the load-out of the aircraft due to the map he finds himself on and what they are comfortable with. Air-to-air and ground-attack options are both viable and can help change the tide of the battle by loading up on what the team needs more.
  
 
== General info ==
 
== General info ==
=== Flight Performance ===
+
=== 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.''-->
+
<!-- ''Describe how the aircraft behaves in the air. Speed, manoeuvrability, acceleration and allowable loads - these are the most important characteristics of the vehicle.'' -->
 
The {{PAGENAME}} is a very good Boom & Zoom fighter, the only issue is confronting other jets with afterburner capabilities which make your Boom & Zoom attempt more difficult. The G.91 has a lower turn speed than the other G.91's (swapped for acceleration and a little bit more speed) it is also two high power engine's, making it possible to return to base on one engine or even fight like that if you want. Sadly the G.91 isn't supersonic but it can get close in a steep dive, making it one of the best trans-sonic jets ever made!
 
The {{PAGENAME}} is a very good Boom & Zoom fighter, the only issue is confronting other jets with afterburner capabilities which make your Boom & Zoom attempt more difficult. The G.91 has a lower turn speed than the other G.91's (swapped for acceleration and a little bit more speed) it is also two high power engine's, making it possible to return to base on one engine or even fight like that if you want. Sadly the G.91 isn't supersonic but it can get close in a steep dive, making it one of the best trans-sonic jets ever made!
 
[[File:G91YS Jermster 91 001.jpg|350px|thumb|left|A bird's eye view of a '''{{PAGENAME}}''' fighter.]]
 
[[File:G91YS Jermster 91 001.jpg|350px|thumb|left|A bird's eye view of a '''{{PAGENAME}}''' fighter.]]
 
{{break}}
 
{{break}}
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
|-
+
! rowspan="2" | Characteristics
! colspan="8" | Characteristics
 
|-
 
! colspan="8" | ''Stock''
 
|-
 
 
! colspan="2" | Max Speed<br>(km/h at 0 m - at sea level)
 
! colspan="2" | Max Speed<br>(km/h at 0 m - at sea level)
 
! rowspan="2" | Max altitude<br>(meters)
 
! rowspan="2" | Max altitude<br>(meters)
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! rowspan="2" | Take-off run<br>(meters)
 
! rowspan="2" | Take-off run<br>(meters)
 
|-
 
|-
! AB
+
! AB !! RB !! AB !! RB !! AB !! RB
! RB
 
! AB
 
! RB
 
! AB
 
! RB
 
|-
 
| 1,114 || 1,109 || {{Specs|ceiling}} || 29.5 || 30.7 || 60.4 || 54.6 || 750
 
|-
 
! colspan="8" | ''Upgraded''
 
 
|-
 
|-
! colspan="2" | Max Speed<br>(km/h at 0 m - at sea level)
+
! Stock
! rowspan="2" | Max altitude<br>(meters)
+
| 1,114 || 1,109 || rowspan="2" | {{Specs|ceiling}} || 29.5 || 30.7 || 60.4 || 54.6 || rowspan="2" | 750
! colspan="2" | Turn time<br>(seconds)
 
! colspan="2" | Rate of climb<br>(meters/second)
 
! rowspan="2" | Take-off run<br>(meters)
 
 
|-
 
|-
! AB
+
! Upgraded
! RB
+
| 1,131 || 1,123 || 28.6 || 29.0 || 91.8 || 75
! AB
 
! RB
 
! AB
 
! RB
 
|-
 
|1,131||1,123|| {{Specs|ceiling}} || 28.6 || 29.0 || 91.8 || 75.0 || 750
 
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="5" | Features
+
! colspan="6" | Features
 
|-
 
|-
! Combat flaps
+
! Combat flaps !! Take-off flaps !! Landing flaps !! Air brakes !! Arrestor gear !! Drogue chute
! Take-off flaps
 
! Landing flaps
 
! Air brakes
 
! Arrestor gear
 
 
|-
 
|-
| ✓ || ✓ || ✓ || ✓ || X<!-- ✓ -->
+
| ✓ || ✓ || ✓ || ✓ || ✓ || ✓    <!-- ✓ -->
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="5" | Limits
+
! colspan="7" | Limits
 
|-
 
|-
! rowspan="2" | Wing-break speed<br>(km/h)
+
! rowspan="2" | Wings (km/h)
! rowspan="2" | Gear limit<br>(km/h)
+
! rowspan="2" | Gear (km/h)
! rowspan="2" | Combat flaps<br>(km/h)
+
! colspan="3" | Flaps (km/h)
 
! colspan="2" | Max Static G
 
! colspan="2" | Max Static G
 
|-
 
|-
! +
+
! Combat !! Take-off !! Landing !! + !! -
! -
 
 
|-
 
|-
| {{Specs|destruction|constructions}} || {{Specs|destruction|chassis}} || 620 || ~11 || ~4
+
| {{Specs|destruction|body}} || {{Specs|destruction|gear}} || 620 || 620 || 371 || ~11 || ~4
 
|-
 
|-
 
|}
 
|}
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{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="4" | Optimal velocities
+
! colspan="4" | Optimal velocities (km/h)
 
|-
 
|-
! Ailerons<br>(km/h)
+
! Ailerons !! Rudder !! Elevators !! Radiator
! Rudder<br>(km/h)
 
! Elevators<br>(km/h)
 
! Radiator<br>(km/h)
 
 
|-
 
|-
 
| < 800 || < 650 || < 660 || N/A
 
| < 800 || < 650 || < 660 || N/A
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|}
 
|}
  
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==== Engine performance ====
 
{| class="wikitable" style="text-align:center"
 
{| class="wikitable" style="text-align:center"
 
|-
 
|-
! colspan="3" | Compressor (RB/SB)
+
! colspan="3" | Engine
 +
! colspan="6" | Aircraft mass
 +
|-
 +
! colspan="2" | Engine name || Number
 +
! colspan="3" | Empty mass || colspan="3" | Wing loading (full fuel)
 +
|-
 +
| colspan="2" | General Electric J85-GE-13A || 2
 +
| colspan="3" | 4,350 kg || colspan="3" | 380 kg/m<sup>2</sup>
 
|-
 
|-
! colspan="3" | Setting 1
+
! colspan="3" | Engine characteristics
 +
! colspan="5" | Mass with fuel (no weapons load) || rowspan="2" | Max Takeoff<br/>Weight
 
|-
 
|-
! Optimal altitude
+
! Weight (each) || colspan="2" | Type
! 100% Engine power
+
! 17m fuel || 20m fuel || 30m fuel || 45m fuel || 57m fuel
! WEP Engine power
 
 
|-
 
|-
| 0 m || 1,230 kgf || 1,894 kgf
+
| 271 kg || colspan="2" | Afterburning axial-flow turbojet
 +
| 5,114 kg || 5,246 kg || 5,688 kg || 6,351 kg || 6,882 kg || 8,500 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
 +
! 17m fuel || 20m fuel || 30m fuel || 45m fuel || 57m fuel || MTOW
 +
|-
 +
| ''Stationary'' || 1,230 kgf || 1,894 kgf
 +
| 0.74 || 0.72 || 0.67 || 0.60 || 0.55 || 0.45
 +
|-
 +
| ''Optimal'' || 1,242 kgf<br/>(1,000 km/h) || 1,913 kgf<br/>(1,000 km/h)
 +
| 0.75 || 0.73 || 0.67 || 0.60 || 0.56 || 0.45
 
|-
 
|-
 
|}
 
|}
  
 
=== Survivability and armour ===
 
=== Survivability and 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.''-->
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<!-- ''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.'' -->
  
 
* 40 mm bulletproof glass in the canopy windshield (angled to provide about 94 mm of protection)
 
* 40 mm bulletproof glass in the canopy windshield (angled to provide about 94 mm of protection)
 
* 6.5 mm steel behind pilot's seat
 
* 6.5 mm steel behind pilot's seat
  
Like many later generation jet fighters (those built in the 1960s-70s) the {{PAGENAME}} traded armour for greater ordnance carrying capacity. Though not without all armour, the canopy windshield has an effective thickness of 94 mm to protect the pilot in the event of a head-on attack. Though the 6.5 mm of steel behind the pilot's seat seem to be on the thin side, bullets coming in from that direction will need to pass through the engine first. If the pilot is going to be hit by bullets it will most likely be through side angle shots or from above.  
+
Like many later generation jet fighters (those built in the 1960s-70s) the {{PAGENAME}} traded armour for greater ordnance carrying capacity. Though not without all armour, the canopy windshield has an effective thickness of 94 mm to protect the pilot in the event of a head-on attack. Though the 6.5 mm of steel behind the pilot's seat seem to be on the thin side, bullets coming in from that direction will need to pass through the engine first. If the pilot is going to be hit by bullets it will most likely be through side angle shots or from above.
 
[[File:G91YS AgressiveRecon 001.jpg|700px|thumb|center|Aerial shot of a '''{{PAGENAME}}''' at altitude.]]
 
[[File:G91YS AgressiveRecon 001.jpg|700px|thumb|center|Aerial shot of a '''{{PAGENAME}}''' at altitude.]]
  
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{{main|DEFA 552 (30 mm)}}
 
{{main|DEFA 552 (30 mm)}}
 
[[File:G91YS CrazyJow 001.jpg|400px|thumb|right|'''{{PAGENAME}}''' fighter with the sun setting behind it.]]
 
[[File:G91YS CrazyJow 001.jpg|400px|thumb|right|'''{{PAGENAME}}''' fighter with the sun setting behind it.]]
 +
 
The '''''{{PAGENAME}}''''' is armed with:
 
The '''''{{PAGENAME}}''''' is armed with:
 
 
* 2 x 30 mm DEFA 552 cannons, nose-mounted (125 rpg = 250 total)
 
* 2 x 30 mm DEFA 552 cannons, nose-mounted (125 rpg = 250 total)
  
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The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
The '''''{{PAGENAME}}''''' can be outfitted with the following ordnance:
 
 
* Without load
 
* Without load
 
* 2 x 500 lb LDGP Mk 82 bombs (1,000 lb total)
 
* 2 x 500 lb LDGP Mk 82 bombs (1,000 lb total)
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== Usage in battles ==
 
== Usage in battles ==
<!--''Describe the tactics of playing in an aircraft, the features of using vehicles 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).'' -->
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The YS has a lot of power and energy potential, keep that in mind before going into battle. To add to this fighters punch, it also utilises AIM 9B missiles and in capable hands, this fighter can be a monster on the battlefield. The YS also has the capability of mounting 76 x FFAR Mighty Mouse rockets which provide the potential of low-altitude Boom & Zooming on trucks, anti-aircraft artillery, light tanks and even enemy fighters attempting an airfield capture, though this does not come without a cost. When dropping in low on ground targets, the fighter sacrifices its speed and manoeuvrability for that ordinance. The YS also can outfit a few bombs so the YS can then be used as a base bomber following up by attacking enemy fighters, but even still it isn't always reliable and can be easily intercepted from any other supersonic fighter jets patrolling the area.
  
The YS has a lot of power and energy potential, keep that in mind before going into battle. To add to this fighters punch, it also utilises AIM 9B missiles and in capable hands, this fighter can be a monster on the battlefield. The YS also has the capability of mounting 76 x FFAR Mighty Mouse rockets which provide the potential of low-altitude Boom & Zooming on trucks, anti-aircraft artillery, light tanks and even enemy fighters attempting an airfield capture, though this does not come without a cost. When dropping in low on ground targets, the fighter sacrifices its speed and manoeuvrability for that ordinance. The YS also can outfit a few bombs so the YS can then be used as a base bomber following up by attacking enemy fighters, but even still it isn't always reliable and can be easily intercepted from any other supersonic fighter jets patrolling the area.  
+
Your biggest threats will be F-4C's, Mig 19S/PT, F-100D, Mitsubishi T2, J-6A, J-7II, Hunter F.6, mainly because they have superior speed and ordinance, The Hunter is probably the best-matched jet to the {{PAGENAME}}. The only top tier jet which should not be too much of a pain is the Super Mystere B2, and F-86K because they have limited speed and slow acceleration compared and will never win in a vertical climb against the {{PAGENAME}}.
  
Your biggest threats will be F-4C's, Mig 19S/PT, F-100D, Mitsubishi T2, J-6A, J-7II, Hunter F.6, mainly because they have superior speed and ordinance, The Hunter is probably the best-matched jet to the {{PAGENAME}}. The only top tier jet which should not be too much of a pain is the Super Mystere B2, and F-86K because they have limited speed and slow acceleration compared and will never win in a vertical climb against the {{PAGENAME}}. 
 
<!--
 
=== 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 || rowspan="2" | Not controllable<br>Not auto controlled || rowspan="2" | Not controllable<br>Auto control available || rowspan="2" | Not controllable<br>Auto control available || rowspan="2" | Combined || rowspan="2" | Not controllable<br>1 gear || rowspan="2" | Not controllable
 
|-
 
|}
 
-->
 
 
=== Modules ===
 
=== Modules ===
 
{| class="wikitable"
 
{| class="wikitable"
! colspan="1" | Tier
+
! Tier
 
! colspan="2" | Flight performance
 
! colspan="2" | Flight performance
! colspan="1" | Survivability
+
! Survivability
 
! colspan="3" | Weaponry
 
! colspan="3" | Weaponry
 
|-
 
|-
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[[File:G91YS easterly0815 001.png |400px|thumb|right|'''{{PAGENAME}}''' popping its breaking parachute upon landing.]]
 
[[File:G91YS easterly0815 001.png |400px|thumb|right|'''{{PAGENAME}}''' popping its breaking parachute upon landing.]]
 
'''Pros:'''
 
'''Pros:'''
 
+
* Excellent acceleration and roll speed
* Excellent acceleration and roll speed  
+
* Able to carry [[AIM-9B]] air-to-air missiles
* Able to carry [[AIM-9B]] air-to-air missiles  
 
 
* Wide variety of payload options
 
* Wide variety of payload options
 
* High rate of climb
 
* High rate of climb
 
* Deadly main armament
 
* Deadly main armament
 +
* Drag chute helps slow you down very quickly during landings
  
 
'''Cons:'''
 
'''Cons:'''
 
 
* Slower than most planes it will face
 
* Slower than most planes it will face
 
* Limited ammo
 
* Limited ammo
* Slower turn rate compared to earlier G.91's  
+
* Slower turn rate compared to earlier G.91's
* High repair cost  
+
* High repair cost
 +
* Flaps and landing gear are prone to ripping off
 +
* New booster module is a must to research in order to avoid crashing during a very fast and low-level dive
  
 
== History ==
 
== 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>=== Encyclopedia Info ===</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).'' -->
 
[[File:G91YS Jermster 91 002.jpg|400px|thumb|right|'''{{PAGENAME}}''' heading into an active battle zone.]]
 
[[File:G91YS Jermster 91 002.jpg|400px|thumb|right|'''{{PAGENAME}}''' heading into an active battle zone.]]
During the 1960s, Fiat began developing a successor to their previous G.91 fighter, which had thus far managed to obtain a favorable reputation with its operators. Fiat based their new aircraft heavily on the two-seat trainer version of the G.91 and decided outfit the aircraft with two General Electric J85 afterburning engines contrary to the preceding single-engine G.91.
+
During the 1960s, Fiat began developing a successor to their previous G.91 fighter, which had thus far managed to obtain a favourable reputation with its operators. Fiat based their new aircraft heavily on the two-seat trainer version of the G.91 and decided outfit the aircraft with two General Electric J85 afterburning engines contrary to the preceding single-engine G.91.
  
Additionally, the aircraft’s fuselage and wings were enlarged to accomodate for the bigger powerplant and improve handling characteristics, while a slew of other tweaks and upgrades further enhanced the aircraft’s overall design. The new G.91Y performed its maiden flight in December 1966. Testing revealed minor aerodynamic issues which would be resolved on subsequent production aircraft with only minor redesigns.
+
Additionally, the aircraft's fuselage and wings were enlarged to accommodate for the bigger powerplant and improve handling characteristics, while a slew of other tweaks and upgrades further enhanced the aircraft's overall design. The new G.91Y performed its maiden flight in December 1966. Testing revealed minor aerodynamic issues which would be resolved on subsequent production aircraft with only minor redesigns.
  
 
Production of the G.91Y began with an initial order for 20 pre-production machines, following the manufacturing of two prototypes. This order would eventually go up to 75 aircraft, although only 67 including the initial prototypes were delivered in the end. By the mid 1970s, all outstanding orders for the G.91Y were fulfilled and production had ceased for this variant.
 
Production of the G.91Y began with an initial order for 20 pre-production machines, following the manufacturing of two prototypes. This order would eventually go up to 75 aircraft, although only 67 including the initial prototypes were delivered in the end. By the mid 1970s, all outstanding orders for the G.91Y were fulfilled and production had ceased for this variant.
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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:''
 
 
* ''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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* ''encyclopedia page on the aircraft;''
 
* ''encyclopedia page on the aircraft;''
 
* ''other literature.'' -->
 
* ''other literature.'' -->
 
 
* [https://warthunder.com/en/news/6078-development-g-91ys-turning-and-burning-en [Devblog<nowiki>]</nowiki> G.91YS: Turning and Burning]
 
* [https://warthunder.com/en/news/6078-development-g-91ys-turning-and-burning-en [Devblog<nowiki>]</nowiki> G.91YS: Turning and Burning]
  
 +
{{AirManufacturer Fiat}}
 
{{Italy jet aircraft}}
 
{{Italy jet aircraft}}

Latest revision as of 20:27, 11 February 2020

RANK 5 SWEDEN
SAAB J-29D PACK
G.91 YS
fiat_g91_ys.png
AB
RB
SB
General characteristics
Brief
Detailed
9.3/9.7/9.7BR
1 personCrew
8.5 tTake-off weight
10.42 kg/sBurst mass
Flight characteristics
12 500 mCeiling
2 х General Electric J85-GE-13AEngine
JetType
airCooling system
Speed of destruction
1128 km/hStructural
371 km/hGear
Offensive armament
2 x 30 mm DEFA 552 cannonWeapon 1
250 roundsAmmunition
1 200 shots/minFire rate
Suspended armament
2 x 500 lb LDGP Mk 82 bombSetup 1
4 x 500 lb LDGP Mk 82 bombSetup 2
2 x 1000 lb LDGP Mk 83 bombSetup 3
4 x 1000 lb LDGP Mk 83 bombSetup 4
76 x FFAR Mighty Mouse rocketsSetup 5
2 x AIM-9B Sidewinder air-to-air missilesSetup 6
2 x AIM-9B Sidewinder air-to-air missiles
2 x 500 lb LDGP Mk 82 bomb
Setup 7
2 x AIM-9B Sidewinder air-to-air missiles
4 x 500 lb LDGP Mk 82 bomb
Setup 8
2 x AIM-9B Sidewinder air-to-air missiles
2 x 1000 lb LDGP Mk 83 bomb
Setup 9
2 x AIM-9B Sidewinder air-to-air missiles
4 x 1000 lb LDGP Mk 83 bomb
Setup 10
2 x AIM-9B Sidewinder air-to-air missiles
76 x FFAR Mighty Mouse rockets
Setup 11
Economy
400 000 Rp icon.pngResearch
1 030 000 Sl icon.pngPurchase
Sl icon.png22 000 / 29 854/13 000 / 17 641/2 970 / 4 030Repair
300 000 Sl icon.pngCrew training
1 030 000 Sl icon.pngExperts
3 000 Ge icon.pngAces
238 % Rp icon.pngReward for battle
470 % Sl icon.png220 % Sl icon.png150 % Sl icon.png
This page is about the Italian jet fighter G.91 YS. For other uses, see G.91 (Family).

Description

GarageImage G.91 YS.jpg


The G.91 YS is a rank VI Italian jet fighter with a battle rating of 9.7 (AB/RB) and 9.3 (SB). It was introduced in Update 1.87 "Locked On".

The G.91 YS is a multi-role fighter which first debuted in 1966. Based largely on earlier Fiat G.91 fighters, the G.91 YS was a complete redesign but kept the basic shape of the G.91 series. The biggest difference between the two types was the conversion from a single-engine to two General Electric J85 turbojets outfitted with afterburners. This conversion alone resulted in a 60% increase in the aircraft's thrust, however, it was not enough for this jet to become supersonic even when in a dive.

In similar fashion to the earlier French fighter, the Super Mystere B2, the G.91 YS was outfitted with dual 30 mm DEFA autocannons in the cheeks of the forward fuselage. Also in the same vein, the G.91 YS was built to be a multi-role fighter as a fighter-interceptor or a fighter-bomber. Due to the increased power of the dual engines, this fighter when acting in a bomber role has the ability to carry up to 4,000 lbs of bombs, though configurations as low as 1,000 lbs is available. FFAR Mighty Mouse unguided rockets are another good option for taking out softer ground targets in which the larger 500 – 1,000 lb bombs would otherwise be overkill.

The G.91 YS while lacking in the supersonic flight department is a feisty little fellow which can still hold its own in an air-to-air combat role. The dual autocannons can make quick work of any head-on attacks provided the pilot gets out of the way of incoming bullets in return. AIM-9B Sidewinder missiles prove themselves very effective especially against slower targets such as bombers and helicopters but are a bit more difficult to achieve success against other fighters due to their ability to pull high-g manoeuvres and break the missile lock and avoid them.

The pilot has the option to change up the load-out of the aircraft due to the map he finds himself on and what they are comfortable with. Air-to-air and ground-attack options are both viable and can help change the tide of the battle by loading up on what the team needs more.

General info

Flight performance

The G.91 YS is a very good Boom & Zoom fighter, the only issue is confronting other jets with afterburner capabilities which make your Boom & Zoom attempt more difficult. The G.91 has a lower turn speed than the other G.91's (swapped for acceleration and a little bit more speed) it is also two high power engine's, making it possible to return to base on one engine or even fight like that if you want. Sadly the G.91 isn't supersonic but it can get close in a steep dive, making it one of the best trans-sonic jets ever made!

A bird's eye view of a G.91 YS fighter.


Characteristics Max Speed
(km/h at 0 m - at sea level)
Max altitude
(meters)
Turn time
(seconds)
Rate of climb
(meters/second)
Take-off run
(meters)
AB RB AB RB AB RB
Stock 1,114 1,109 12 500 29.5 30.7 60.4 54.6 750
Upgraded 1,131 1,123 28.6 29.0 91.8 75

Details

Features
Combat flaps Take-off flaps Landing flaps Air brakes Arrestor gear Drogue chute
Limits
Wings (km/h) Gear (km/h) Flaps (km/h) Max Static G
Combat Take-off Landing + -
1128 371 620 620 371 ~11 ~4
Optimal velocities (km/h)
Ailerons Rudder Elevators Radiator
< 800 < 650 < 660 N/A

Engine performance

Engine Aircraft mass
Engine name Number Empty mass Wing loading (full fuel)
General Electric J85-GE-13A 2 4,350 kg 380 kg/m2
Engine characteristics Mass with fuel (no weapons load) Max Takeoff
Weight
Weight (each) Type 17m fuel 20m fuel 30m fuel 45m fuel 57m fuel
271 kg Afterburning axial-flow turbojet 5,114 kg 5,246 kg 5,688 kg 6,351 kg 6,882 kg 8,500 kg
Maximum engine thrust @ 0 m (RB / SB) Thrust to weight ratio @ 0 m (WEP)
Condition 100% WEP 17m fuel 20m fuel 30m fuel 45m fuel 57m fuel MTOW
Stationary 1,230 kgf 1,894 kgf 0.74 0.72 0.67 0.60 0.55 0.45
Optimal 1,242 kgf
(1,000 km/h)
1,913 kgf
(1,000 km/h)
0.75 0.73 0.67 0.60 0.56 0.45

Survivability and armour

  • 40 mm bulletproof glass in the canopy windshield (angled to provide about 94 mm of protection)
  • 6.5 mm steel behind pilot's seat

Like many later generation jet fighters (those built in the 1960s-70s) the G.91 YS traded armour for greater ordnance carrying capacity. Though not without all armour, the canopy windshield has an effective thickness of 94 mm to protect the pilot in the event of a head-on attack. Though the 6.5 mm of steel behind the pilot's seat seem to be on the thin side, bullets coming in from that direction will need to pass through the engine first. If the pilot is going to be hit by bullets it will most likely be through side angle shots or from above.

Aerial shot of a G.91 YS at altitude.

Armaments

Offensive armament

Main article: DEFA 552 (30 mm)
G.91 YS fighter with the sun setting behind it.

The G.91 YS is armed with:

  • 2 x 30 mm DEFA 552 cannons, nose-mounted (125 rpg = 250 total)

Suspended armament

The G.91 YS can be outfitted with the following ordnance:

  • Without load
  • 2 x 500 lb LDGP Mk 82 bombs (1,000 lb total)
  • 4 x 500 lb LDGP Mk 82 bombs (2,000 lb total)
  • 2 x 1,000 lb LDGP Mk 83 bombs (2,000 lb total)
  • 4 x 1,000 lb LDGP Mk 83 bombs (4,000 lb total)
  • 76 x FFAR Mighty Mouse rockets
  • 2 x AIM-9B missiles
  • 2 x 500 lb LDGP Mk 82 bombs + 2 x AIM-9B missiles (1,000 lb total)
  • 4 x 500 lb LDGP Mk 82 bombs + 2 x AIM-9B missiles (2,000 lb total)
  • 2 x 1,000 lb LDGP Mk 83 bombs + 2 x AIM-9B missiles (2,000 lb total)
  • 4 x 1,000 lb LDGP Mk 83 bombs + 2 x AIM-9B missiles (4,000 lb total)
  • 2 x AIM-9B missiles + 76 x FFAR Mighty Mouse rockets

Usage in battles

The YS has a lot of power and energy potential, keep that in mind before going into battle. To add to this fighters punch, it also utilises AIM 9B missiles and in capable hands, this fighter can be a monster on the battlefield. The YS also has the capability of mounting 76 x FFAR Mighty Mouse rockets which provide the potential of low-altitude Boom & Zooming on trucks, anti-aircraft artillery, light tanks and even enemy fighters attempting an airfield capture, though this does not come without a cost. When dropping in low on ground targets, the fighter sacrifices its speed and manoeuvrability for that ordinance. The YS also can outfit a few bombs so the YS can then be used as a base bomber following up by attacking enemy fighters, but even still it isn't always reliable and can be easily intercepted from any other supersonic fighter jets patrolling the area.

Your biggest threats will be F-4C's, Mig 19S/PT, F-100D, Mitsubishi T2, J-6A, J-7II, Hunter F.6, mainly because they have superior speed and ordinance, The Hunter is probably the best-matched jet to the G.91 YS. The only top tier jet which should not be too much of a pain is the Super Mystere B2, and F-86K because they have limited speed and slow acceleration compared and will never win in a vertical climb against the G.91 YS.

Modules

Tier Flight performance Survivability Weaponry
I Fuselage repair Compressor Offensive 30 mm M82
II New boosters Airframe M82-2 LAU-3A
III Wings repair Engine New 30 mm cannons M83
IV G-suit Cover M83-2 AIM-9B

Pros and cons

G.91 YS popping its breaking parachute upon landing.

Pros:

  • Excellent acceleration and roll speed
  • Able to carry AIM-9B air-to-air missiles
  • Wide variety of payload options
  • High rate of climb
  • Deadly main armament
  • Drag chute helps slow you down very quickly during landings

Cons:

  • Slower than most planes it will face
  • Limited ammo
  • Slower turn rate compared to earlier G.91's
  • High repair cost
  • Flaps and landing gear are prone to ripping off
  • New booster module is a must to research in order to avoid crashing during a very fast and low-level dive

History

G.91 YS heading into an active battle zone.

During the 1960s, Fiat began developing a successor to their previous G.91 fighter, which had thus far managed to obtain a favourable reputation with its operators. Fiat based their new aircraft heavily on the two-seat trainer version of the G.91 and decided outfit the aircraft with two General Electric J85 afterburning engines contrary to the preceding single-engine G.91.

Additionally, the aircraft's fuselage and wings were enlarged to accommodate for the bigger powerplant and improve handling characteristics, while a slew of other tweaks and upgrades further enhanced the aircraft's overall design. The new G.91Y performed its maiden flight in December 1966. Testing revealed minor aerodynamic issues which would be resolved on subsequent production aircraft with only minor redesigns.

Production of the G.91Y began with an initial order for 20 pre-production machines, following the manufacturing of two prototypes. This order would eventually go up to 75 aircraft, although only 67 including the initial prototypes were delivered in the end. By the mid 1970s, all outstanding orders for the G.91Y were fulfilled and production had ceased for this variant.

The G.91Y served exclusively with Italian squadrons up until the early 1990s, before being replaced by a more modern counterpart.

The G.91YS was a single prototype conversion of the G.91Y, which followed a requirement issued by the Swiss Air Force. The aircraft allowed installation of American Sidewinder air-to-air missiles, and a Swedish weapons control system. This special prototype first flew in October 1970, but was eventually not accepted into service by the Swiss. The prototype was converted back into service as a regular G.91Y.

- From Devblog

Media

Images
  • G91YS WTWallpaper 001.jpg
  • G91YS WTWallpaper 002.jpg
  • G91YS WTWallpaper 003.jpg
  • G91YS WTWallpaper 004.jpg
  • G91YS WTWallpaper 005.jpg
  • G91YS WTWallpaper 006.jpg
  • G91YS WTWallpaper 007.jpg
Videos

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


Fiat Aviation (Fiat Aviazione)
Fighters  CR.32 · CR.32 bis · CR.32 quater
  CR.42 · Marcolin's C.R.42 CN
  G.50 serie 2 · G.50 AS serie 7
  G.55 sottoserie 0 · G.55 serie 1 · G.55S
  G.56
Jet fighters  G.91 pre-serie · G.91 R/1 · G.91 YS
  ▄F-86K*
  F-104S*
Bombers  BR.20 DR · B.R.20M M1
Export  J11
  ▀G.91 R/3 · ▀G.91 R/4 · G.91 R/4
Captured  ▀CR.42 · ▀Marcolin's C.R.42 CN · ▀G.50 serie 2 · ▀G.50 AS serie 7
  *Licensed
See also  North American Aviation · Lockheed Martin

Italy jet aircraft
Fiat  G.91 pre-serie · G.91 R/1 · G.91 R/4 · G.91 YS
Foreign  ▄F-84G-21-RE · CL-13 Mk.4 · ▄F-86K · F-104S
  Vampire FB 52A