Fairchild A-10
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Re: Fairchild A-10
Fairchild Republic A-10 par un contributeur de Wikipedia (en)
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The Fairchild Republic A-10 Thunderbolt II is an American single-seat, twin-engine, straight-wing [Vous devez être inscrit et connecté pour voir ce lien] developed by [Vous devez être inscrit et connecté pour voir ce lien] in the early 1970s.
The A-10 was designed for a [Vous devez être inscrit et connecté pour voir ce lien] requirement to provide [Vous devez être inscrit et connecté pour voir ce lien] (CAS) for ground forces by attacking [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien], and other ground targets with a limited [Vous devez être inscrit et connecté pour voir ce lien] capability.
It is the first U.S. Air Force aircraft designed solely for close air support.
The A-10 was designed around the [Vous devez être inscrit et connecté pour voir ce lien], a heavy [Vous devez être inscrit et connecté pour voir ce lien] which forms the aircraft's primary armament (and is, to date, the heaviest rotary cannon ever mounted on an aircraft).
The aircraft's hull incorporates over 1,200 pounds (540 kg) of [Vous devez être inscrit et connecté pour voir ce lien] and was designed with survivability as a priority, with protective measures in place which enable the aircraft to continue flying even after taking significant damage.
The A-10's official name comes from the [Vous devez être inscrit et connecté pour voir ce lien] of [Vous devez être inscrit et connecté pour voir ce lien], a fighter that was particularly effective at close air support.
The A-10 is more commonly known by its nickname "Warthog" or simply "Hog".
As a secondary mission, it provides airborne [Vous devez être inscrit et connecté pour voir ce lien], guiding other aircraft against ground targets.
A-10s used primarily in this role are designated OA-10. The A-10 is expected to be replaced in 2028 or later.
[Vous devez être inscrit et connecté pour voir ce lien]
----------------------------------------------------------------------------------------------------------------------------
The Fairchild Republic A-10 Thunderbolt II is an American single-seat, twin-engine, straight-wing [Vous devez être inscrit et connecté pour voir ce lien] developed by [Vous devez être inscrit et connecté pour voir ce lien] in the early 1970s.
The A-10 was designed for a [Vous devez être inscrit et connecté pour voir ce lien] requirement to provide [Vous devez être inscrit et connecté pour voir ce lien] (CAS) for ground forces by attacking [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien], and other ground targets with a limited [Vous devez être inscrit et connecté pour voir ce lien] capability.
It is the first U.S. Air Force aircraft designed solely for close air support.
The A-10 was designed around the [Vous devez être inscrit et connecté pour voir ce lien], a heavy [Vous devez être inscrit et connecté pour voir ce lien] which forms the aircraft's primary armament (and is, to date, the heaviest rotary cannon ever mounted on an aircraft).
The aircraft's hull incorporates over 1,200 pounds (540 kg) of [Vous devez être inscrit et connecté pour voir ce lien] and was designed with survivability as a priority, with protective measures in place which enable the aircraft to continue flying even after taking significant damage.
The A-10's official name comes from the [Vous devez être inscrit et connecté pour voir ce lien] of [Vous devez être inscrit et connecté pour voir ce lien], a fighter that was particularly effective at close air support.
The A-10 is more commonly known by its nickname "Warthog" or simply "Hog".
As a secondary mission, it provides airborne [Vous devez être inscrit et connecté pour voir ce lien], guiding other aircraft against ground targets.
A-10s used primarily in this role are designated OA-10. The A-10 is expected to be replaced in 2028 or later.
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Re: Fairchild A-10
Development
Background
Criticism that the U.S. Air Force did not take [Vous devez être inscrit et connecté pour voir ce lien] seriously prompted a few service members to seek a specialized attack aircraft.
In the [Vous devez être inscrit et connecté pour voir ce lien], large numbers of ground-attack aircraft were shot down by [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien],
and low-level anti-aircraft gunfire, prompting the development of an aircraft better able to survive such weapons.
In addition, the [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] helicopters of the day, which USAF commanders had said should handle
close air support, were ill-suited for use against armor, carrying only anti-personnel machine guns and unguided rockets meant for [Vous devez être inscrit et connecté pour voir ce lien].
Fast jets such as the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] proved for the most part to be ineffective for close air support. The effective but aging [Vous devez être inscrit et connecté pour voir ce lien] was the USAF's primary close air support aircraft.
A-X program
In 1966 the U.S. Air Force formed the Attack Experimental (A-X) program office.
On 6 March 1967, the Air Force released a [Vous devez être inscrit et connecté pour voir ce lien] to 21 [Vous devez être inscrit et connecté pour voir ce lien] for the A-X.
The objective was to create a design study for a low-cost attack aircraft. The officer in charge of the project was Colonel Avery Kay.
In 1969, the Secretary of the Air Force asked [Vous devez être inscrit et connecté pour voir ce lien] to write the detailed specifications for the proposed A-X project.
However, his initial involvement was kept secret because of Sprey's earlier controversial involvement in the [Vous devez être inscrit et connecté pour voir ce lien] project.
Sprey's discussions with A-1 Skyraider pilots operating in Vietnam and analysis of the effectiveness of current aircraft used in the role indicated the ideal aircraft should have long loiter time, low-speed maneuverability, massive cannon firepower, and extreme survivability; an aircraft that had the best elements of the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] and Skyraider. The specifications also demanded that each aircraft cost less than $3 million.
Sprey required that the biography of [Vous devez être inscrit et connecté pour voir ce lien] attack pilot [Vous devez être inscrit et connecté pour voir ce lien] be read by people on A-X program.
In May 1970, the USAF issued a modified and much more detailed [Vous devez être inscrit et connecté pour voir ce lien] (RFP) for the aircraft.
The threat of Soviet armored forces and all-weather attack operations had became more serious.
Now included in the requirements was that the aircraft would be designed specifically for the [Vous devez être inscrit et connecté pour voir ce lien] cannon.
The RFP also specified an aircraft with a maximum speed of 460 mph (400 kn; 740 km/h), takeoff distance of 4,000 feet (1,200 m), external load of 16,000 pounds (7,300 kg), 285-mile (460 km) mission radius, and a unit cost of US$1.4 million.
The A-X would be the first Air Force aircraft designed exclusively for close air support.
During this time, a separate RFP was released for A-X's 30 mm cannon with requirements for a high rate of fire (4,000 round/minute) and a high muzzle velocity.
Six companies submitted aircraft proposals to the USAF, with [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] selected to build prototypes: the [Vous devez être inscrit et connecté pour voir ce lien] and YA-10A, respectively. General Electric and Philco-Ford were selected to build and test [Vous devez être inscrit et connecté pour voir ce lien] cannon prototypes.
The YA-10A was built in [Vous devez être inscrit et connecté pour voir ce lien] and first flew on 10 May 1972.
After trials and a fly-off against the YA-9A, the Air Force announced its selection of Fairchild-Republic's YA-10A on 18 January 1973 for production.
General Electric was selected to build the GAU-8 cannon in June 1973.
The YA-10 had an additional fly-off in 1974 against the Ling-Temco-Vought [Vous devez être inscrit et connecté pour voir ce lien], the principal Air Force attack aircraft at the time, in order to prove the need to purchase a new attack aircraft.
The first production A-10 flew in October 1975, and deliveries to the Air Force commenced in March 1976.
In total, 715 airplanes were produced, the last delivered in 1984.
One experimental two-seat A-10 Night Adverse Weather (N/AW) version was built by converting an A-10A.
The N/AW was developed by Fairchild from the first Demonstration
Testing and Evaluation (DT&E) A-10 for consideration by the USAF.
It included a second seat for a weapons system officer responsible for [Vous devez être inscrit et connecté pour voir ce lien] (ECM), navigation and target acquisition.
The variant was canceled, and the only two-seat A-10 built now resides at [Vous devez être inscrit et connecté pour voir ce lien]'s Flight Test Center Museum.
The N/AW version did not interest the USAF or export customers.
The two-seat trainer version was ordered by the Air Force in 1981, but funding was canceled by [Vous devez être inscrit et connecté pour voir ce lien] and the jet was not produced.
Background
Criticism that the U.S. Air Force did not take [Vous devez être inscrit et connecté pour voir ce lien] seriously prompted a few service members to seek a specialized attack aircraft.
In the [Vous devez être inscrit et connecté pour voir ce lien], large numbers of ground-attack aircraft were shot down by [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien],
and low-level anti-aircraft gunfire, prompting the development of an aircraft better able to survive such weapons.
In addition, the [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] helicopters of the day, which USAF commanders had said should handle
close air support, were ill-suited for use against armor, carrying only anti-personnel machine guns and unguided rockets meant for [Vous devez être inscrit et connecté pour voir ce lien].
Fast jets such as the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] proved for the most part to be ineffective for close air support. The effective but aging [Vous devez être inscrit et connecté pour voir ce lien] was the USAF's primary close air support aircraft.
A-X program
In 1966 the U.S. Air Force formed the Attack Experimental (A-X) program office.
On 6 March 1967, the Air Force released a [Vous devez être inscrit et connecté pour voir ce lien] to 21 [Vous devez être inscrit et connecté pour voir ce lien] for the A-X.
The objective was to create a design study for a low-cost attack aircraft. The officer in charge of the project was Colonel Avery Kay.
In 1969, the Secretary of the Air Force asked [Vous devez être inscrit et connecté pour voir ce lien] to write the detailed specifications for the proposed A-X project.
However, his initial involvement was kept secret because of Sprey's earlier controversial involvement in the [Vous devez être inscrit et connecté pour voir ce lien] project.
Sprey's discussions with A-1 Skyraider pilots operating in Vietnam and analysis of the effectiveness of current aircraft used in the role indicated the ideal aircraft should have long loiter time, low-speed maneuverability, massive cannon firepower, and extreme survivability; an aircraft that had the best elements of the [Vous devez être inscrit et connecté pour voir ce lien], [Vous devez être inscrit et connecté pour voir ce lien] and Skyraider. The specifications also demanded that each aircraft cost less than $3 million.
Sprey required that the biography of [Vous devez être inscrit et connecté pour voir ce lien] attack pilot [Vous devez être inscrit et connecté pour voir ce lien] be read by people on A-X program.
In May 1970, the USAF issued a modified and much more detailed [Vous devez être inscrit et connecté pour voir ce lien] (RFP) for the aircraft.
The threat of Soviet armored forces and all-weather attack operations had became more serious.
Now included in the requirements was that the aircraft would be designed specifically for the [Vous devez être inscrit et connecté pour voir ce lien] cannon.
The RFP also specified an aircraft with a maximum speed of 460 mph (400 kn; 740 km/h), takeoff distance of 4,000 feet (1,200 m), external load of 16,000 pounds (7,300 kg), 285-mile (460 km) mission radius, and a unit cost of US$1.4 million.
The A-X would be the first Air Force aircraft designed exclusively for close air support.
During this time, a separate RFP was released for A-X's 30 mm cannon with requirements for a high rate of fire (4,000 round/minute) and a high muzzle velocity.
Six companies submitted aircraft proposals to the USAF, with [Vous devez être inscrit et connecté pour voir ce lien] and [Vous devez être inscrit et connecté pour voir ce lien] selected to build prototypes: the [Vous devez être inscrit et connecté pour voir ce lien] and YA-10A, respectively. General Electric and Philco-Ford were selected to build and test [Vous devez être inscrit et connecté pour voir ce lien] cannon prototypes.
The YA-10A was built in [Vous devez être inscrit et connecté pour voir ce lien] and first flew on 10 May 1972.
After trials and a fly-off against the YA-9A, the Air Force announced its selection of Fairchild-Republic's YA-10A on 18 January 1973 for production.
General Electric was selected to build the GAU-8 cannon in June 1973.
The YA-10 had an additional fly-off in 1974 against the Ling-Temco-Vought [Vous devez être inscrit et connecté pour voir ce lien], the principal Air Force attack aircraft at the time, in order to prove the need to purchase a new attack aircraft.
The first production A-10 flew in October 1975, and deliveries to the Air Force commenced in March 1976.
In total, 715 airplanes were produced, the last delivered in 1984.
One experimental two-seat A-10 Night Adverse Weather (N/AW) version was built by converting an A-10A.
The N/AW was developed by Fairchild from the first Demonstration
Testing and Evaluation (DT&E) A-10 for consideration by the USAF.
It included a second seat for a weapons system officer responsible for [Vous devez être inscrit et connecté pour voir ce lien] (ECM), navigation and target acquisition.
The variant was canceled, and the only two-seat A-10 built now resides at [Vous devez être inscrit et connecté pour voir ce lien]'s Flight Test Center Museum.
The N/AW version did not interest the USAF or export customers.
The two-seat trainer version was ordered by the Air Force in 1981, but funding was canceled by [Vous devez être inscrit et connecté pour voir ce lien] and the jet was not produced.
Gill2- CLUB
- Messages : 2055
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aeronewsline :: Accueil :: Histoire :: Aéronefs 1972 à 1976
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