User:EH101/Sandbox3
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[edit] It.wiki translation
The Aeritalia G-91Y was an Italian fighter-bomber, which followed previous Fiat G.91R variant, developed in the sixties and on service with Italian Air Force up to 1994.
The G-91Y was more powerful than preceding R, but it was not a very successful project. Replacement of the original Bristol Orpheus turbojet with two General Electric J85-GE 13A, resulted in a 63% thrust increase, against a 37% weight more. Speed performances were only slightly raised, but acceleration and thrust had been very improved, with a trade off of a higher purchase price and an higher fuel consumption with afterburner. As a result, climb time to 10,000 feet was better than its F-104 Starfighter counterpart in Italian Air Force order of battle one. Fuselage was bigger due to the now needed more room for two engines (positioned in tail side by side) having therefore the possibility to load about double fuel quantity (3,200 kg) than the original variant. 65 airplanes plus two prototypes were manufactured for the Italian Air Force only, with first entered in service with two Italian Air Force squadrons in 1972. G-91Y served up to 1994, when they were replaced by AMX International AMX. It was an effective project, despite its great problem of having a single air intake feeding both engines. This design brought to a situation in which having one engine stalling lead to a stall to the other. The wing, while maintaining about same surface of the R version, had two big innovations: first was the introduction of slats on wings leading edge with a measured lift improvement of 30% in some conditions. Second was the adoption of a unique integrated large case for the whole span. Standard weapons were two DEFA 552 guns with 125 rounds max each. Striker was electric. G-91Y was not compatible with missiles weaponery. A new derivated variant denominated YS with two AIM-9 Sidewinder air-to-air missiles was under development for a Swiss Air Force dedicated proposed variant, stopped at prototype phase. [1]
[edit] Article draft (from User:BillCJ/Sandbox/Aeritalia G.91Y) with modifications
| G.91Y | |
|---|---|
| Type | Fighter-bomber |
| Manufacturer | Fiat Aviazione Aeritalia |
| Maiden flight | 1966 |
| Introduced | 1970 |
| Retired | 1999 |
| Status | Some in museums |
| Primary user | Italian Air Force |
| Produced | 65 + 2 prototypes |
| Developed from | Fiat G.91 |
The Aeritalia G.91Y, nicknamed Yankee[2], was an Italian fighter-bomber aircraft.
[edit] Design and development
An additional 67 aircraft built by Aeritalia were significantly uprated from earlier versions. These aircraft, designated G.91Y replaced the original Bristol-Siddeley Orpheus engine with two General Electric J85 units.[3]The G.91Y first flew on 12 December 1966[4] and displayed a vast improvement in speed, range, payload, and maneuverability. It increased maximum speed to 600 kt (1,110 km/h, 690 mph, Mach 0.91). The machine guns were replaced by a pair of DEFA 552 30mm cannons with 125 rounds per gun. All the aircraft built served with the Italian Air Force.
[edit] Variants
[edit] G.91YS
G.91Y was not compatible with missiles weaponery. A new derivated variant denominated YS with two AIM-9 Sidewinder air-to-air missiles was under development for a Swiss Air Force dedicated proposed variant, stopped at prototype stage. [1]
[edit] G.91YT
Two seats variant designed both for advanced training and operative tasks.[1] Proposal stage only.
[edit] Operators
[edit] Specifications (G.91Y)
Data from Italian Air Force website,[5] flugzeuginfo.net,[6] alatricolore.it,[2] aeroengineer.net[1]
General characteristics
- Crew: 1
- Length: 11.67 m (38.3 ft)
- Wingspan: 9.01 m (29.6 ft)
- Height: 4.43 m (14.5 fr)
- Wing area: 18.13 m² ()
- Empty weight: 3,680 kg (8,113 lbs)
- Max takeoff weight: 7,800 kg (17,196 lbs)
- Powerplant: 2× General Electric J85-GE 13A turbojet, 1,230 kg - 1,850 with afterburner () each
- Take off run: 914 m
- Landing run: 600 m
Performance
- Maximum speed: 1,111 km/h (600 kts)
- Range: 1,750 km ()
- Service ceiling 12,500 m ()
Armament
- Guns: 2× DEFA 552 30mm cannons
- 1,800 kg of bombs, rockets, fuel tanks or gunpods on four underwing hardpoints
[edit] See also
Related development
Comparable aircraft
Related lists
[edit] References
- Notes
- Bibliography
- Crosby, Francis. "Fiat/Aeritalia G91." Fighter Aircraft. London: Lorenz Books, 2002. ISBN 0-7548-0990-0.
- Green, William. The World's Fighting Planes. London: Macdonald, 1964.
- Niccoli, Riccado. "Fiat G.91, NATO's Lightweight Fighter." International Air Power Review. Volume 7, Winter 2002.
- Taylor, John W. R. "Fiat G.91". Combat Aircraft of the World from 1909 to the Present. New York: G.P. Putnam's Sons, 1969. ISBN 0-425-03633-2.
[edit] External links
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Category:Jet aircraft Category:Italian attack aircraft 1960-1969 Category:Multiple engine aircraft
