Everything about General Dynamics F-111 totally explained
The
General Dynamics F-111 is an
American medium-range
strategic bomber,
reconnaissance, and
tactical strike aircraft designed in the 1960s. The
United States Air Force (USAF) variants were officially retired by 1998. The only remaining operator of the F-111 is the
Royal Australian Air Force (RAAF).
The F-111 pioneered several technologies for production
military aircraft, including
variable geometry wings,
afterburning turbofan engines, and
terrain following radar for low-level, high-speed flight. Its design was highly influential, particularly for
Soviet engineers, and some of its advanced features have since become commonplace. In its inception, however, the F-111 suffered a variety of development problems, and several of its intended roles, such as naval
interception, failed to materialize.
In USAF service the F-111 has been effectively replaced by the
F-15E Strike Eagle for medium-range precision strike missions, while the supersonic bomber role has been assumed by the
B-1B Lancer. In 2007, Australia decided to replace its F-111s in 2010 with 24
F/A-18F Super Hornets.
In Desert Storm, F-111Fs completed 3.2 successful strike missions for every unsuccessful one, making it 47% more capable than the next leading strike aircraft. The small 66-plane F-111F force was credited with 1,500 kills of Iraqi tanks and other mechanized vehicles. The F-111F was the only Desert Storm aircraft to deliver the GBU-15 and the 5,000-pound laser-guided, penetrating GBU-28.
The F-111 was in service with the USAF from 1967 through 1998. The
Strategic Air Command had FB-111s in service from 1969 through 1990.
At a ceremony marking the F-111's USAF retirement, on
27 July 1996, it was officially named
Aardvark, its long-standing unofficial nickname. Aardvark literally means "earth pig" in
Dutch/
Afrikaans, consequently, in
Australia, the F-111 is often known by the affectionate nickname "Pig". The USAF retired the EF-111 variant in 1998.
Australia
The Australian government ordered 24
F-111C aircraft in 1963 to replace the
RAAF's
English Electric Canberra in the bombing and tactical strike role. While the first aircraft was officially handed over in 1968, structural integrity problems found in the USAF fleet delayed the service entry of the F-111C until 1973, USAF F-4 Phantom IIs being leased as an interim measure. Four aircraft were modified to
RF-111C reconnaissance configuration, retaining their strike capability.
A number of ex-USAF aircraft have been delivered to Australia, as attrition replacements and to enlarge the fleet. Four aircraft modified to F-111C status were delivered in 1982, while 18 F-111G aircraft were purchased in 1992 and delivered in 1994. Additional stored USAF airframes are reserved as a spares source.
Since their introduction Australia's F-111s have been operated by
No. 1 Squadron RAAF in the strike role with
No. 6 Squadron RAAF operating the aircraft as an
operational conversion unit. A temporary flight designated the
Washington Flying Unit ferried Australia's first 12 aircraft from the United States in 1973 and F-111s have been loaned to the RAAF's
Aircraft Research and Development Unit. The aircraft will be retired in 2010 with No. 1 and No. 6 Squadrons being reequipped with
F/A-18F Block II Super Hornets.
While the F-111 hasn't seen combat in Australian service, it's known that F-111 aircraft were placed on high alert during the initial phase of the Australian-lead intervention (
INTERFET) into
East Timor in 1999. During the first
Gulf War in 1991, the United States Government asked Australia to deploy RF-111 aircraft to the Persian Gulf. This request was denied as the Australian government judged that these aircraft were too important to Australia's security to risk in a distant war.
The Royal Australian Air Force's F-111 fleet has at times been controversial. Controversies surrounding the F-111 include:
The long delay to the delivery of the aircraft was a significant political issue in the late 1960s and early 1970s. This occurred around the same time that massive delays and cost blowouts to the Sydney Opera House were making headlines, prompting some commentators to dub the F-111 the "Flying Opera House."
Their use by the Hawke federal government to take surveillance photos of the Franklin Dam project in Tasmania. The use of an RAAF aircraft to "spy" on its own territory led to the minister responsible, Senator Gareth Evans earning the nickname "Biggles" (after the famous pilot-hero of a number of books by Captain W.E. Johns).
Poor work conditions for F-111 ground crew involved in sealing/de-sealing F-111 fuel tanks resulted in permanent brain damage to a number of ground crew before conditions were improved.
In Australian military and aviation circles, the F-111 Aardvark is affectionately known as the "Pig", due to its Terrain Following ability, unique at the time of its introduction, that gives it the ability to "hunt amongst the weeds." Another, less generous explanation of the source of the nickname refers to the colloquialism "Pigs Might Fly." A third origin can be posited from the word aardvark, which translates into English as "Earth Pig."
In 2007 Australia decided to retire its F-111s in 2010 and signed a contract to acquire 24 F/A-18Fs as an interim replacement. In March 2008 after a review, the new Labor government confirmed its purchase of the Super Hornets. The drawdown of the RAAF F-111 fleet has begun with the retirement of the F-111G models operated by No. 6 Squadron RAAF in late 2007, leading to the retirement of the last of the F-111Cs. The F-111 fleet will be retired in 2010 and replaced by 24 F/A-18F Block II Super Hornet.
United Kingdom
The British government cancelled the BAC TSR-2 in 1965, citing the lower costs of the TFX and ordered 50 F-111K aircraft in 1967. The F-111K was based on the F-111A, modified for British equipment and weapons. This included weapons bay changes, compatibility with the Martel anti-shipping missile, the addition of a retractable refuelling probe and the use of FB-111A landing gear for a higher gross take off weight. Prototypes of both the strike and TF-111K trainer aircraft were started and were in the final stages of build when the order was cancelled just over a year later. Updated estimates of performance indicated that range and speed at altitude would be worse than expected and fall short of the specification. Cost increase together with devaluation of the pound meant that the cost would be around £3 million each and this was the reason cited for cancellation. As a substitute, Blackburn Buccaneers and F-4 Phantom IIs were purchased instead for the RAF. These would eventually be replaced by the Panavia Tornado which also employs swing-wings like the F-111.
Variants
F-111A
The F-111A was the initial production version of the F-111. It had TF30-P-3 engines with 12,000 lbf (53 kN) dry and 18,500 lbf (82 kN) afterburning thrust and "Triple Plow I" variable intakes, providing a maximum speed of Mach 2.2 (1,450 mph / 2,300 km/h) at altitude.
The -A's Mark I avionics suite included the General Electric AN/APQ-113 attack radar mated to a separate Texas Instruments AN/APQ-110 terrain-following radar under the nose and a Litton AJQ-20 inertial navigation and nav/attack system.
Total production of the F-111A was 158, including 17 preproduction aircraft that were later brought up to production standards. In 1982, four surviving F-111As were converted to F-111C standard and provided to Australia as attrition replacements. They were fitted with the longer-span wings and reinforced landing gear of the -C, and subsequently were almost indistinguishable from new-build F-111Cs. Some of the -As delivered to the RAAF were Vietnam veterans, purportedly still bearing the scars of anti-aircraft fire.
A total of 42 F-111As were converted as the EF-111A Raven for an electronic warfare tactical electronic jamming role. They can be distinguished from other -As by the equipment bulge atop their tails, a featuring leading to the nickname "Fat Tail."
Three pre-production aircraft were provided to NASA for various testing duties. One was fitted with a variable-camber wing as part of the Advanced Fighter Technology Integration program in the 1980s; it was retired to the United States Air Force Museum at Wright Patterson AFB in 1989.
Most of the unconverted surviving F-111As were retired in 1991 and mothballed at AMARC, Davis Monthan AFB.
F-111B
[[Image:F-111B CVA-43 approach July1968.jpg|thumb|An F-111B approaching the
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