This is modification of great Aeritalia G.91Y Yankee by Enrico 'erikgen' Gennari.
'The G.91YS is a variant of the -Y developed specially
for the Swiss Air Force requirement for a Hunter replacement.
Essentially an extra wing pylon has been fitted for
carrying Sidewinder missiles.' FLIGHT International, 29 April 1971.
Unfortunately Swiss Air Force preferred the Northrop F-5 and G.91YS stayed on prototype only.
Pair of IRM (Sidewinders) increase actionability of this superb aircraft and evolve to multirole purpose.
There are two skins inside pack: Italian Prototipo - historical; & Swiss based on stock skin with Hunter decals - fictional (what if).
Instalation is same like Yankee (original readme included) + fakepilot method + extra pylon (G91ys_pylon).
Credits goes to:
- Enrico 'erikgen' Gennari for 3d, skins, pit , blood and tears & awesome aircraft.
- kreelin for FM
- Spillone104 for the jet sound, photos and SFP1 conversion
- Swiss skin decals by Muesli from his Alp-Hunters.
- FakePilot method by FastCargo
-> Special Thanks to COCAS for made new pylon specially for this mod! <-
Rest: skins, ini works and other changes by me.
Freeware licence.
Michal Minta
  1. G91ys War Thunder
A G91Y at Bremgarten in September 1992
RoleGround attack
National originItaly
ManufacturerFiat Aviazione
First flight27 December 1966
Primary userItalian Air Force
Number built2 prototypes + 65[1]
Developed fromFiat G.91

The Fiat G91 was designed to meet a NATO requirement for a light strike fighter which could be used by all NATO members. The contest was won by Fiat with their G91 design, partly based on a scaled down F-86. The aircraft first flew in the late 1950’s but was used only by the Italian, German and Portuguese air forces, primarily. The G.91 R/1 (nicknamed 'Gina') is a rank V Italian jet fighter with a battle rating of 8.3 (AB) and 8.7 (RB/SB). It was introduced in Update 1.69 'Regia Aeronautica' along with the initial Italian aviation tree. A mid 50's transonic fighter (. The G.91Y was an increased-performance version of the Fiat G.91 funded by the Italian government. Based on the G.91T two-seat trainer variant, the single Bristol Orpheus turbojet engine of this aircraft was replaced by two afterburning General Electric J85 turbojets which increased thrust by 60% over the single-engined variant. The Fiat G.91 was an Italian jet fighter aircraft. It was the winner of the NATO competition in 1953 for a light fighter as standard equipment for Allied air forces. It entered in operational service with the Italian Air Force in 1961, with the West German Luftwaffe, in 1962 (Source Wikipedia). A G91YS (using it as 9.7 example as thats where it still should be) cant possibly fight off a Mig21MF with a pilot of simillar skill level. Cant flee, cant go to cover and cant shoot it down without an immense portion of luck.

A Fiat G.91Y at Ramstein Air Base in 1986

The Fiat (later Aeritalia) G.91Y is an Italian ground-attack and reconnaissance aircraft which first flew in 1966. Although resembling its predecessor, the Fiat G.91, the aircraft was in fact a complete redesign, a major difference with it being equipped with twin engines rather than the original single engine.

Design and development[edit]

The G.91Y was an increased-performance version of the Fiat G.91 funded by the Italian government. Based on the G.91T two-seat trainer variant, the single Bristol Orpheusturbojet engine of this aircraft was replaced by two afterburningGeneral Electric J85 turbojets which increased thrust by 60% over the single-engined variant.[2] Structural modifications to reduce airframe weight increased performance further and an additional fuel tank occupying the space of the G.91T's rear seat provided extra range. Combat manoeuvrability was improved with the addition of automatic leading edge slats.[2]


The avionics equipment of the G.91Y was considerably upgraded with many of the American, British and Canadian systems being licence-manufactured in Italy.[2]

Flight testing of three pre-production aircraft was successful, with one aircraft reaching a maximum speed of Mach 0.98. Airframe buffeting was noted and subsequently rectified in production aircraft by raising the position of the tailplane slightly.


An initial order of 55 aircraft for the Italian Air Force was completed by Fiat in March 1971, by which time the company had changed its name to Aeritalia (from 1969, when Fiat aviazione merged with Aerfer). The order was increased to 75 aircraft with 67 eventually being delivered. In fact, the development of the new G.91Y was quite long, with the first order being for about 20 pre-series examples that followed the two prototypes. The first pre-series 'Yankee' (the nickname of the new aircraft) flew in July 1968.

AMI (Italian Air Force) placed orders for two batches; 35 fighters followed by another 20, later cut to 10. The last one was delivered around mid 1976, making a total of two prototypes, 20 pre-series and 45 series aircraft. No export success followed. These aircraft served with 101° Gruppo/8° Stormo (Cervia-S.Giorgio) from 1970, and later, from 1974, they served with the 13° Gruppo/32° Stormo (Brindisi).[3] Those 'Gruppi' (Italian equivalent of British 'squadrons', usually equipped with 18 aircraft) lasted until the early '90s, as the only ones equipped with the 'Yankee', using them as attack/reconnaissance machines, both over ground and sea, until the AMX replaced them.


  • G.91Y - Prototype and production aircraft.
  • G.91YT - Projected two-seat trainer variant.[4]
  • G.91YS - Prototype with enhanced avionics and extra hardpoints to carry AIM-9 Sidewinder missiles for evaluation by Switzerland. First flown on 16 October 1970.[4][5]


  • Italian Air Force operated 65 Fiat G.91Ys until 1994

Aircraft on display[edit]

A Fiat G.91Y is preserved and on public display at the Italian Air Force Museum, Vigna di Valle.[6]

Specifications (G.91Y)[edit]

Orthographically projected diagram of the Fiat G-91Y

Data fromThe Observer's Book of Aircraft.[4]

General characteristics

  • Crew: 1
  • Length: 11.67 m (38 ft 3 in)
  • Wingspan: 9.01 m (29 ft 7 in)
  • Height: 4.43 m (14 ft 6 in)
  • Wing area: 18.13 m2 (195.1 sq ft)
  • Airfoil:root:NACA 65A112; tip:NACA 65A111[7]
  • Empty weight: 3,900 kg (8,598 lb)
  • Gross weight: 7,800 kg (17,196 lb)
  • Max takeoff weight: 8,700 kg (19,180 lb) max overload
  • Powerplant: 2 × General Electric J85-GE-13Aafterburning turbojet engines, 12.12 kN (2,725 lbf) thrust each dry, 18.15 kN (4,080 lbf) with afterburner


  • Maximum speed: 1,110 km/h (690 mph, 600 kn) at sea level
  • Maximum speed: Mach 0.95 at 10,000 m (32,810 ft)
  • Cruise speed: 630 km/h (390 mph, 340 kn)
  • Ferry range: 3,400 km (2,100 mi, 1,800 nmi) with drop tanks
  • Service ceiling: 12,500 m (41,000 ft)
  • Rate of climb: 86.36 m/s (17,000 ft/min)
  • Wing loading: 480 kg/m2 (98 lb/sq ft)
  • Thrust/weight: 0.43


  • Guns: 2 × 30 mm (1.18 in)DEFA cannons
  • Hardpoints: 4 under-wing pylon stations with a capacity of 1,814 kg (4,000 lb),

See also[edit]

Related development

Aircraft of comparable role, configuration, and era

Related lists



  1. ^Official website aeronautica Militare
  2. ^ abc[Staff author] 20 June 1968. 'Fiat G.91Y' Flight International, p. 931. www.flightglobal.com. Retrieved: 30 December 2011.
  3. ^Warplanes encyclopedia, Aerospace Publishing, 1984, Italian version print by De Agostini, 1985, p.16
  4. ^ abcGreen 1972, p. 8.
  5. ^[Staff author] 29 April 1971. 'Italy's aircraft industry' Flight International, p. 578. www.flightglobal.com. Retrieved: 30 December 2011.
  6. ^Italian Air Force Museum - Fiat G.91Y factsheetArchived 2011-12-24 at the Wayback Machine www.aeronautica.difesa.it. Retrieved: 31 December 2011
  7. ^Lednicer, David. 'The Incomplete Guide to Airfoil Usage'. m-selig.ae.illinois.edu. Retrieved 16 April 2019.


  • Green, William. The Observer's Book of Aircraft. London. Frederick Warne & Co. Ltd., 1972. ISBN0-7232-1507-3

External links[edit]

Wikimedia Commons has media related to Fiat G.91Y.

G91ys War Thunder

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