G.91 YS

G.91 YS

G.91 Y

AMX

G.91 YS

G.91 Y

AMX

Italy

VI Rank

Battle rating:

AB	RB	SB
9.7	9.3	9.7

Class:

Fighter

Jet fighter

Research:110 000

Purchase:620 000

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This page is about the Italian jet fighter G.91 YS. For other uses, see G.91 (Family).

Description

The G.91 YS is a rank VI Italian jet fighter with a battle rating of 9.7 (AB/SB) and 9.3 (RB). 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
Stock
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
1,114	1,109	12500	29.5	30.7	60.4	54.6	750
Upgraded
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
1,131	1,123	12500	28.6	29.0	91.8	75.0	750

Details

Features
Combat flaps	Take-off flaps	Landing flaps	Air brakes	Arrestor gear
X	X	✓	✓	✓

Limits
Wing-break speed (km/h)	Gear limit (km/h)	Combat flaps (km/h)	Max Static G
			+	-
		620	~11	~4

Optimal velocities
Ailerons (km/h)	Rudder (km/h)	Elevators (km/h)	Radiator (km/h)
< 800	< 650	< 660	N/A

Compressor (RB/SB)
Setting 1
Optimal altitude	100% Engine power	WEP Engine power
0 m	1,230 kgf	1,894 kgf

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

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

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 are a must to research in order to not crash during a very fast 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

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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

• [Devblog] G.91YS: Turning and Burning

Italy jet aircraft
Aerfer	Sagittario 2 · Ariete
Fiat	G.91 pre-serie · G.91 R/1 · G.91 R/4 (Portugal) · G.91 Y · G.91 YS
AMX International	AMX · AMX A-1A (Brazil)
Panavia	Tornado ADV · ▄Tornado IDS · ▄Tornado IDS (1995)
	Foreign:
Vampire	Vampire FB 52A
F-84	▄F-84F · ▄F-84G-21-RE
F-86	CL-13 Mk.4 · ▄F-86K
F-104	▄F-104G · F-104S · ▄F-104S TAF (Turkey) · F-104S.ASA
F-16	▄F-16A ADF
AV-8	▄AV-8B Plus
Hungary
Mikoyan-Gurevich	◔MiG-15bis · ◔MiG-17PF · ◔MiG-21MF · ◔MiG-21bis-SAU · ◔MiG-23MF · ◔MiG-29
Ilyushin	◔IL-28
Sukhoi	◔Su-22M3
Saab	◔JAS39EBS HU C