G.91 YS

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G.91 YS
General characteristics
1 personCrew
8.5 tTake-off weight
10.42 kg/sBurst mass
Flight characteristics
12 500 mCeiling
2 х General Electric J85-GE-13AEngine
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
400 000 Rp icon.pngResearch
1 030 000 Sl icon.pngPurchase
Sl icon.png19 000 / 25 783/15 000 / 20 355/2 700 / 3 663Repair
300 000 Sl icon.pngCrew training
1 030 000 Sl icon.pngExperts
3 000 Ge icon.pngAces
238 % Rp icon.pngReward for battle
500 % Sl icon.png280 % Sl icon.png150 % Sl icon.png
This page is about the aircraft G.91 YS. For other uses, see G.91 (Disambiguation).


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".

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 0m - sea level)
Max altitude
Turn time
Rate of climb
Take-off run
1114 1109 12 500 29.5 30.7 60.4 54.6 750
Max Speed
(km/h at 0m - sea level)
Max altitude (meters) Turn time (seconds) Rate of climb
Take-off run (meters)
 ?  ? 12 500  ??.?  ??.?  ??.?  ??.? 750


Combat flap Take-off flap Landing flap Air brakes Arrestor gear
Wing-break speed
Gear limit
Combat flap
Max Static G
+ -
1128 371  ??? ~?? ~?
Optimal velocities
< ??? < ??? < ??? > ???

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.


Offensive armament

Main article: DEFA 552 (30 mm)
  • 2 x DEFA 30 mm cannons (125 RPG = 250 total)

Suspended armament

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).


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

Pros and cons


  • Great turn speed for a jet; on par with the MiG-15 in this area.
  • Can equip with AIM-9 Sidewinder missiles.
  • Wide variety of payload options.
  • Decently fast.
  • Two 30 mm DEFA cannons cause more damage than the original 4 x M3 Browning machine guns.


  • Nearly every foe at its rank (ex. F-100D, MiG-19) are faster.
  • Fairly low ammo count for the guns means that you need to be conservative with your ammo.


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.

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.

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


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

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