147-593: The General Dynamics F-111C (nicknamed the " Pig ") is a variant of the F-111 Aardvark medium-range interdictor and tactical strike aircraft, developed by General Dynamics to meet Australian requirements. The design was based on the F-111A model but included longer wings and strengthened undercarriage. The Australian government ordered 24 F-111Cs to equip the Royal Australian Air Force (RAAF) in 1963, but
294-539: A forward looking infrared (FLIR) sensor, optical camera and laser rangefinder / designator . The Pave Tack pod allowed the F-111 to designate targets and drop laser-guided bombs on them. Australian RF-111Cs carried a pallet of sensors and cameras for aerial reconnaissance use. The FB-111 could carry two AGM-69 SRAM air-to-surface nuclear missiles in its weapons bay. General Dynamics trialed an arrangement with two AIM-9 Sidewinder air-to-air missiles carried on rails in
441-660: A tandem -seat aircraft for low-level penetration ground-attack, while the Navy wanted a shorter, high altitude interceptor with side-by-side seating to allow the pilot and radar operator to share the radar display. Also, the USAF wanted the aircraft designed for 7.33 g with Mach 2.5 speed at altitude and Mach 1.2 speed at low level with an approximate length of 70 ft (21.3 m). The Navy had less strenuous requirements of 6 g with Mach 2 speed at altitude and high subsonic speed (approx. Mach 0.9) at low level with
588-536: A FAD fighter, the Navy started with the subsonic , straight-winged aircraft, the Douglas F6D Missileer in the late 1950s. The Missileer was designed to carry six long-range missiles and loiter for five hours, but would be defenseless after firing its missiles. The program was formally canceled in 1961. The Navy had tried variable geometry wings with the XF10F Jaguar , but abandoned it in the early 1950s. It
735-506: A ceiling price of $ 529 million along with provisions for deficiency correction amongst other operational clauses and performance criteria. General Dynamics' design team was led by Robert H. Widmer . Recognizing its lack of experience with carrier-based fighters, General Dynamics teamed with Grumman in November 1963 for the assembly and testing of the F-111B. In addition, Grumman would also build
882-604: A decision to retire them in 2010 rather than 2020 as originally planned. The F-111s were replaced by 24 Boeing F/A-18F Super Hornets pending delivery of F-35 Lightning IIs in development. In June 1960, the United States Air Force (USAF) issued a requirement for an F-105 Thunderchief replacement. The U.S. Navy began a program to develop a new air defense fighter for use on its large aircraft carriers. On 14 February 1961, newly appointed United States Secretary of Defense Robert McNamara formally directed that
1029-576: A detachment of six aircraft from the 474th Tactical Fighter Wing (474th TFW Roadrunners) were sent in March 1968 to Southeast Asia for Combat Lancer testing in real combat conditions in the Vietnam War . During the deployment, 55 night missions were flown against targets in North Vietnam, but two aircraft had been lost. 66–0022 was lost on 28 March, and 66-0017 on 30 March. Replacement aircraft left Nellis, but
1176-594: A heart for transplant. The aircraft landed at Bradley International Airport to deliver the organ to a waiting ambulance. On 14 April 1986, 18 F-111s and approximately 25 Navy aircraft conducted air strikes against Libya under Operation El Dorado Canyon . The 18 F-111s of the 48th Tactical Fighter Wing and 4 EF-111As from the 20th Tactical Fighter Wing flew what turned out to be the longest fighter combat mission in history. The round-trip flight between RAF Lakenheath / RAF Upper Heyford , United Kingdom and Libya of 6,400 miles (10,300 km) spanned 13 hours. One F-111
1323-663: A length of 56 ft (17.1 m). The Navy also wanted the aircraft with a nose large enough for a 48 in (1.2 m) diameter radar dish. McNamara developed a basic set of requirements for TFX based largely on the USAF's requirements and, on 1 September 1961, ordered the USAF to develop it. Nevertheless, a request for proposals (RFP) for the TFX was provided to industry in October 1961. In December, proposals were received from Boeing , General Dynamics , Lockheed , McDonnell , North American and Republic . The evaluation group found all
1470-513: A light bomb load, while the Canberras could not fly in all weather and had a range of 900 miles (1,400 km), insufficient to reach Jakarta . The opposition Labor Party , led by Arthur Calwell , used the report to criticize Menzies. The government denied that the Tu-16 could reach Sydney, but Minister for Air Frederick Osborne acknowledged that the Canberras were "the weakest link in our armory at
1617-622: A major cause of the aircraft's protracted development and weight increases. The F-111A and F-111B shared the same airframe structural components and Pratt & Whitney TF30-P-1 turbofan engines. They featured side-by-side crew seating in an escape capsule as required by the Navy. The F-111B 's nose was 8.5 feet (2.59 m) shorter as the aircraft could fit on existing carrier elevator decks, and had 3.5-foot-longer (1.07 m) wingtips to improve on-station endurance time; it also carried an AN/AWG-9 Pulse-Doppler radar to guide its AIM-54 Phoenix missiles. The USAF's F-111A would be equipped with
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#17328490986181764-775: A mid-1950s combination of anti-communist Western states and such states in Southeast Asia. The United Kingdom, France and the United States, the latter of which joined after the U.S. Senate ratified the treaty by an 82–1 vote, represented the strongest Western powers. Canada also considered joining, but decided against it in order to concentrate on its NATO responsibilities with its limited defense capabilities. Average of contributions to civil and military budgets between 1958 and 1973: Secretaries-General of SEATO: After its creation, SEATO quickly became insignificant militarily, as most of its member nations contributed very little to
1911-658: A new strategic bomber to fulfill the nation's obligations to the Commonwealth Strategic Reserve in Malaysia , ANZUS , and SEATO . Air Staff Requirement 36 that year mandated an all-weather attack aircraft by 1959 capable of delivering a variety of bombs and missiles. A study recommended one of the British V bombers , but Minister of Defence Frederick Shedden decided in 1956 that at £ 1 million each they were too expensive. Air Marshal Valston Hancock , Chief of
2058-568: A nominal strength of 12 F-111s. No. 6 Squadron mainly served as the F-111 operational conversion unit , though it also operated the RF-111 aircraft at times and could serve in the strike role if required. Once in RAAF service, all F-111 maintenance was undertaken at Amberley. From 1973 to 2001 No. 482 Squadron conducted intermediate maintenance of the aircraft, while heavy maintenance was the responsibility of No. 3 Aircraft Depot . No. 482 Squadron also operated
2205-462: A number of ground crew before conditions were improved. A number of ex-USAF aircraft were delivered to Australia as attrition replacements and to enlarge the fleet. Four aircraft modified to the F-111C standard were delivered in 1982. The government bought 15 F-111Gs to supplement its F-111Cs in 1992 and delivered in 1994. Additional stored ex-USAF F-111s were reserved as a spare parts sources. Seven of
2352-499: A speed advantage at low altitudes. The USAF's Tactical Air Command (TAC) was largely concerned with the fighter-bomber and deep strike/ interdiction roles. TAC was in the process of receiving its latest design, the Republic F-105 Thunderchief , which was designed to deliver nuclear weapons fast and far, but required long runways. A simpler variable geometry wing configuration with the pivot points farther out from
2499-467: A terrain-following radar system connected to the autopilot. The aircraft were powered by two Pratt & Whitney TF30 afterburning turbofan engines. The F-111's internal weapons bay could also carry bombs, a removable 20 mm M61 cannon , or auxiliary fuel tanks. The F-111C was equipped to carry the AN/AVQ-26 Pave Tack targeting system on a rotating carriage that kept the pod protected within
2646-507: A trapeze arrangement from the bay, but this was not adopted. Early F-111 models had radars equipped to guide the AIM-7 Sparrow medium-range air-to-air missile, but it was never fitted. Each wing was equipped with four underwing pylons. The inner two pylons on each wing rotated to align with the fuselage, while the outer two were fixed. Each pylon had a capacity of 5,000 pounds (2,300 kilograms). Various bombs and missiles could be carried on
2793-574: A troubled development and Navy requirements changed to a maneuverable aircraft for dogfighting. The swing-wing configuration, TF-30 engines, AIM-54 Phoenix air-to-air missiles and AWG-9 radar developed for the F-111B were used on its replacement, the Grumman F-14 Tomcat. The Tomcat was large enough to carry the AWG-9 and Phoenix missiles while exceeding both the F-111's and the F-4's maneuverability. The F-111C
2940-422: Is a retired supersonic, medium-range, multirole combat aircraft. Production models of the F-111 had roles that included attack (e.g. interdiction ), strategic bombing (including nuclear weapons capabilities), reconnaissance and electronic warfare . Aardvark comes from a South African animal that has a long nose and hugs the terrain. It is an Afrikaans word that translates literally as "earth pig"—hence
3087-525: Is considered to be the primary force behind the creation of SEATO, which expanded the concept of anti-communist collective defense to Southeast Asia. Then-Vice President Richard Nixon advocated an Asian equivalent of the North Atlantic Treaty Organization ( NATO ) upon returning from his Asia trip of late 1953, and NATO was the model for the new organization, with the military forces of each member intended to be coordinated to provide for
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#17328490986183234-502: Is generally considered a failure, as internal conflict and dispute hindered general use of the SEATO military; however, SEATO-funded cultural and educational programs left longstanding effects in Southeast Asia. SEATO was dissolved on 30 June 1977, after many of its members lost interest and withdrew. The Southeast Asia Collective Defense Treaty was signed on 8 September 1954 in Manila , as part of
3381-522: Is the export version for Australia, combining the F-111A with longer F-111B wings and strengthened FB-111A landing gear. Australia ordered 24 F-111s and, following delays, the Royal Australian Air Force accepted the aircraft in 1973. Four were converted to the RF-111C reconnaissance variant in 1979–80. Australia also purchased four ex-USAF F-111As and converted them into F-111Cs. In the 1990s,
3528-484: The 1963 general election . Calwell's Labor party had on 22 October reiterated its pre-campaign promise that it would replace the Canberras as soon as it formed a government. The government's announcement, and the consequent improvement of its chances against Labor, likely also benefited the United States; the purchase helped rebut American critics of the TFX, and the Kennedy administration preferred Menzies' defense policies to
3675-725: The Boeing F/A-18E/F Super Hornet as an interim measure until the Lockheed Martin F-35 Lightning II became available. The May 1960 U-2 incident , in which an American CIA U-2 reconnaissance plane was shot down over the USSR, stunned the United States government. Besides greatly damaging US–Soviet relations, the incident showed that the Soviet Union had developed a surface-to-air missile that could reach aircraft above 60,000 feet (18,000 meters). Consequently,
3822-644: The British Parliament , at one point interrupting a parliamentary debate between Foreign Secretary Anthony Eden and Leader of the Opposition Clement Attlee to excoriate them both for considering the idea. Prince Norodom Sihanouk of Cambodia reported that Foster Dulles went to great efforts to convince him to join SEATO; however, he refused because "I considered SEATO an aggressive military alliance directed against neighbors whose ideology I did not share but with whom Cambodia had no quarrel". In
3969-558: The Case–Church Amendment . The 347th TFW was stationed at Korat Royal Thai Air Force Base from 12 July 1974 until 30 June 1975. In May 1975, 347th TFW F-111s provided air support during the Mayaguez incident . One of the most unusual missions occurred on 14 February 1986, when two FB-111s of the 509th Bombardment Wing were dispatched from then Pease Air Force Base , New Hampshire to Tinker Air Force Base , Oklahoma to pick up
4116-989: The General Electric AN/APQ-113 attack radar mated to a separate Texas Instruments AN/APQ-110 terrain-following radar lower in the nose and a Litton AJQ-20 inertial navigation and nav/attack system. The terrain-following radar (TFR) was integrated into the automatic flight control system, allowing for "hands-off" flight at high speeds and low levels (down to 200 ft or 61 m). A total of 159 F-111As were produced, including 30 pre-production aircraft that were rebuilt to production standards. 42 F-111As were converted to EF-111A Ravens for an electronic warfare tactical electronic jamming role. In 1982, four surviving F-111As were provided to Australia as attrition replacements and modified to F-111C standard, including its longer-span wings and reinforced landing gear. Three pre-production F-111A were used by NASA for various tests. The 13th F-111A received new wing designs for
4263-494: The NATO alliance, SEATO had no joint commands with standing forces. In addition, SEATO's response protocol in the event of communism presenting a "common danger" to the member states was vague and ineffective, though membership in the SEATO alliance did provide a rationale for a large-scale U.S. military intervention in the region during the Vietnam War (1955–1975). Despite its name, SEATO mostly included countries located outside of
4410-761: The Operation Linebacker II aerial offensive against the North Vietnamese, who called the aircraft "Whispering Death". They also supported regional aerial operations against other communist forces such as Operation Phou Phiang III during the Laotian Civil War in Laos . Crews described their flying in Vietnam as "speed is life", "one pass, haul ass", and "you do more than one pass in a target area you die". The F-111's ability with terrain-following radar ("the best in
4557-733: The Royal Australian Air Force deployed CAC Sabres of its No. 79 Squadron to Ubon Royal Thai Air Force Base , Thailand. The Sabres began to play a role in the Vietnam War in 1965, when their air defence responsibilities expanded to include protection of USAF aircraft using Ubon as a base for strikes against North Vietnam. In addition to joint military training, SEATO member states worked on improving mutual social and economic issues. Such activities were overseen by SEATO's Committee of Information, Culture, Education, and Labor Activities, and proved to be some of SEATO's greatest successes. In 1959, SEATO's first Secretary General, Pote Sarasin, created
General Dynamics F-111C - Misplaced Pages Continue
4704-954: The SEATO Graduate School of Engineering (currently the Asian Institute of Technology ) in Thailand to train engineers. SEATO also sponsored the creation of the Teacher Development Center in Bangkok, as well as the Thai Military Technical Training School, which offered technical programs for supervisors and workmen. SEATO's Skilled Labor Project (SLP) created artisan training facilities, especially in Thailand, where ninety-one training workshops were established. SEATO also provided research funding and grants in agriculture and medical fields. In 1959, SEATO set up
4851-1149: The United States . The Philippines and Thailand were the only Southeast Asian countries that actually participated in the organization. They shared close ties with the United States, particularly the Philippines , and they faced incipient communist insurgencies against their own governments. Thailand became a member upon the discovery of the newly founded "Thai Autonomous Region" in Yunnan (the Xishuangbanna Dai Autonomous Prefecture in South West China ) – apparently feeling threatened by potential Maoist subversion on its land. Other regional countries like Burma and Indonesia were far more mindful of domestic internal stability rather than any communist threat, and thus rejected joining it. Malaya (independence in 1957; including Singapore between 1963 and 1965) also chose not to participate formally, though it
4998-593: The United States Air Force Strategic Air Command (SAC) and the RAF Bomber Command 's plans to send subsonic, high-altitude Boeing B-47 Stratojet and V bomber formations into the USSR were realized to be much less viable. By 1960, SAC had begun moving to low-level penetration , which greatly reduced radar detection distances. At the time, SAMs were ineffective against low-flying aircraft while interceptor aircraft had less of
5145-524: The 1990s; the last F-111Fs were withdrawn in 1996 while the remaining EF-111s also departed in 1998. The F-111 was replaced in USAF service 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 . The RAAF continued to operate the type up until December 2010, when the last F-111C was retired; its role was transitioned to
5292-407: The 28 F-111Cs and one of the 15 F-111Gs were destroyed in accidents during their service with the RAAF. These accidents took the lives of 10 air crew. The accidents occurred from 1977 to 1999. The F-111's fuel dump was located right between its turbofan engines, so engaging afterburners during a fuel dump would cause an ignition five feet behind the aircraft. Although strongly discouraged by the USAF,
5439-689: The A-5 or the F-4, which could not be deployed until 1966 and would cost A$ 120–180 million. Waiting for the TSR-2 or TFX in 1969 or 1970 seemed to pose great risk, but when considering Hancock's findings in September 1963 it wanted to be able to offer a substantial response to the Labor party's criticism of its defense strategy. The British and American governments competed on behalf of their nations' unbuilt bombers, as both believed that export sales would increase domestic support for
5586-580: The AN/APQ-113 attack radar and the AN/APQ-110 terrain-following radar and air-to-ground armament. During September 1963, the F-111A mockup was inspected. On 15 October 1964, the first test F-111A was rolled out of Plant 4 of General Dynamics' facility in Fort Worth, Texas; it was powered by YTF30-P-1 turbofans and used a set of ejector seats as the escape capsule was not yet available. On 21 December 1964,
5733-733: The Air Staff , stated in April 1960 that Australia needed a replacement for the Canberra. Although in mid-1962 the Menzies government again decided to not replace the Canberra, Indonesia 's increasingly aggressive statements regarding Malaysia soon caused Australia to reevaluate the decision. The Sydney Morning Herald reported in October 1962 that the Indonesian Air Force 's Soviet Tupolev Tu-16 bombers could reach Sydney or any other Australian city with
5880-499: The American Truman Doctrine of creating anti-communist bilateral and collective defense treaties. These treaties and agreements were intended to create alliances that would keep communist powers in check ( Communist China , in SEATO's case). This policy was considered to have been largely developed by American diplomat George F. Kennan . President Dwight D. Eisenhower 's Secretary of State John Foster Dulles (1953–1959)
6027-577: The American F-111A design, RAAF liaison officers requested country-specific changes such as a long-distance radio, Aeronautical Research Laboratories in Melbourne participated in an intake redesign and provided metal fatigue expertise, and an Australian test pilot evaluated the Australian version's longer wings and performance in tropical conditions. The differences from the F-111A caused it to be designated
General Dynamics F-111C - Misplaced Pages Continue
6174-705: The Asia-Pacific region" throughout their service and provided Australia with "a genuine, independent strike capability". Stewart Wilson, in his book Lincoln, Canberra and F-111 in Australian Service , described the F-111C as "an unqualified success..., providing Australia with a potent strike capability in an aircraft which, a quarter of century after its first flight remains second to none." Former Indonesian defense minister Benny Murdani told his counterpart Kim Beazley that when others became upset with Australia during cabinet meetings , Murdani told them "Do you realize
6321-588: The Australians have a bomber that can put a bomb through that window on to the table here in front of us?" Australian F-111s were ready to attack Indonesian forces during the establishment of East Timor 's independence and the deployment of the Australian-led International Force for East Timor . In 2006, an RAAF F-111 scuttled the North Korean ship Pong Su on 23 March 2006. Because of
6468-474: The Australians have a bomber that can put a bomb through that window on to the table here in front of us?" During late 1990 and early 1991 the Australian government considered deploying F-111Cs to expand the Australian contribution to the 1991 Gulf War , which mainly comprised a Royal Australian Navy task group. The Department of Defence and Department of Foreign Affairs and Trade's (DFAT) preferred option if
6615-813: The Cholera Research Laboratory in Bangkok, later establishing a second Cholera Research Laboratory in Dacca , East Pakistan . The Dacca (now Dhaka) laboratory soon became the world's leading cholera research facility and was later renamed the International Centre for Diarrhoeal Disease Research, Bangladesh . SEATO was also interested in literature, and a SEATO Literature Award was created and given to writers from member states. Though Secretary of State John Foster Dulles considered SEATO an essential element in U.S. foreign policy in Asia, historians have considered
6762-681: The EF-111 electronic warfare variant in 1998. The Australian government ordered 24 F-111C aircraft to replace the RAAF's English Electric Canberras in the bombing and tactical strike role. While the first aircraft was officially handed over in September 1968, structural issues delayed the entry into service. The first F-111C was accepted at Nellis Air Force Base on 15 March 1973. The RAAF's first six F-111Cs arrived at RAAF Base Amberley on 1 July 1973, and three subsequent flights of six F-111s arrived on 27 July, 28 September and 4 December. F-111Cs were allocated to No. 1 Squadron and No. 6 Squadron , under
6909-413: The EF-111 electronic warfare versions were later developed for the USAF. Production of the F-111 ended in 1976, following the completion of 563 aircraft. The F-111 was an all-weather attack aircraft, capable of low-level penetration of enemy defenses to deliver ordnance on the target. The F-111 featured variable-geometry wings, an internal weapons bay and a cockpit with side-by-side seating. The cockpit
7056-576: The F-111 Aardvark was affectionately known as the "Pig", due to its long snout and terrain-following ability. The F-111Cs gave the RAAF a powerful strike capability but were never used in combat. The aircraft went through modernization programs in the 1980s and 1990s, and the RAAF acquired improved weapons to maintain their ability to penetrate hostile airspace. Despite this, by the 2000s the F-111Cs were becoming outdated and expensive to maintain, leading to
7203-525: The F-111 and began operating the F-111C in 1973. As early as March 1968, the USAF were deploying F-111s into active combat situations; the type saw heavy use during the latter half of the Vietnam War to conduct low-level ground-attack missions, flying in excess of 4,000 combat missions while incurring only six combat losses in the theatre. The F-111s also participated in the Gulf War (Operation Desert Storm) in 1991;
7350-462: The F-111 were troubled by compressor surges and stalls across certain portions of the flight regime. General Dynamics had elected to use an uncommon spike-shaped variable intake for the engine for the performance. Studies performed by NASA, the USAF, and General Dynamics led to the engine inlet being redesigned; modifications were implemented between 1965 and 1966, culminating with the "Triple Plow I" and "Triple Plow II" designs. During February 1965,
7497-405: The F-111, but the government decided that the cost was too great. The F-111C entered Australian service after the technical problems were resolved, and the first F-111C was accepted at Nellis Air Force Base on 15 March 1973. On 31 March, the RAAF Washington Flying Unit was formed at McClellan Air Force Base in California with the mission of ferrying the first 12 F-111Cs to Australia. This unit
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#17328490986187644-487: The F-111. Early A-models used the TF30-P-1 engine. Most A-models used the TF30-P-3 engine 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 2.3 (1,450 mph, 2,300 km/h) at altitude. The variant had a maximum takeoff weight of 92,500 lb (42,000 kg) and an empty weight of 45,200 lb (20,500 kg). The F-111A's Mark I avionics suite included
7791-414: The F-111A achieved a speed of Mach 1.3 while flying with an interim intake design. On 18 May 1965, the F-111B made its first flight; it was also equipped with ejector seats initially. Separately, cracks in the F-111's wing attach points were first discovered in 1968 during ground fatigue testing; during the following year, the crash of an F-111 was attributed to a cracked wingbox. On 22 December 1969,
7938-556: The F-111A had accumulated 250,000 flight hours, it had the best safety record among contemporary aircraft, which presaged the F-111C's own excellent record. Four aircraft were modified to RF-111C reconnaissance configuration during 1979–80, retaining their strike capability. The RF-111C carried a reconnaissance pack with four cameras and an infrared linescanner unit. Four ex-USAF F-111As were refitted to F-111C standard and delivered to Australia as attrition replacements in 1982. There F-111Cs were equipped to carry Pave Tack FLIR/laser pods in
8085-429: The F-111A made its first flight from Carswell Air Force Base , Texas. Lasting for 22 minutes, less than planned due to a flap malfunction, this initial flight was considered to be satisfactory overall; category I testing commenced immediately thereafter. Early flights of the F-111, which included supersonic flights, demonstrated favorably simplistic maintenance requirements, amongst other qualities. Various changes to
8232-481: The F-111C fleet. As a result, a decision was made in May 2002 to replace the wings with spares taken from ex-USAF F-111Fs stored at the Aerospace Maintenance and Regeneration Center (AMARC). The short span wings underwent a refurbishment in Australia, which included extending the span, in effect making the wings the same as the F-111C and F-111G models. Following the Avionics Upgrade Program, Australian F-111s received weapons system and various other upgrades. The F-111
8379-469: The F-111C in 1966. The first F-111C was officially delivered in 1968, finally giving Australia an aircraft that could fly to Jakarta, drop bombs, and return without refueling. (The RAAF only acquired air-to-air refueling for the F/A-18, possibly to avoid causing difficulties with other Asian countries by increasing the F-111C's already great range.) Training began in 1967, with RAAF personnel seeing terrain-following radar and other sophisticated equipment for
8526-524: The F-111C underwent a comprehensive digital avionics upgrade program (AUP) which introduced new nav/attack systems (PAVE TACK Laser/infrared targeting system) and digital flight control computers. Later, the C model was upgraded with a unique version of the TF-30 engine known as the P-108. This local version mated the P-109 engine to a P-107 afterburner, delivering 20,840 lb of thrust and significantly increased reliability. The RAAF retired its last F-111Cs in December 2010 after 37 years of service. The F-111D
8673-423: The F-111Fs completed 3.2 successful strike missions for every unsuccessful one, better than any other U.S. strike aircraft used in the operation. RAAF F-111s never saw offensive action, but were deployed periodically as a deterrent, such as for the Australian-led International Force East Timor . Being relatively expensive to maintain amid post- Cold War budget cuts, the USAF elected to retire its F-111 fleet during
8820-491: The F-111s were maintained at a high level of readiness to conduct reconnaissance flights or air strikes if the situation deteriorated. For the latter role two F-111s armed with concrete-filled bombs fitted with precision guidance kits were kept available at all times. INTERFET did not encounter significant resistance, however, and F-111 operations were limited to reconnaissance missions conducted by RF-111Cs from 5 November. Each of these sorties were made after gaining approval from
8967-403: The Indonesian government and normally focused on bridges and communications installations. The last RF-111C flight over East Timor took place on 9 December. War games had the F-111s achieving complete success if a strike was necessary against Indonesian military headquarters near the capital. The Royal Australian Air Force's F-111 fleet was at times controversial. The long delay to the delivery of
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#17328490986189114-421: The Manila Pact a failure, and the pact is rarely mentioned in history books. In The Geneva Conference of 1954 on Indochina , Sir James Cable , a British diplomat and naval strategist, cabled the Foreign Office and described SEATO as "a fig leaf for the nakedness of American policy", citing the Manila Pact as a "zoo of paper tigers ". As early as the 1950s Aneurin Bevan unsuccessfully tried to block SEATO in
9261-428: The Navy found both submissions unacceptable for its operations. Two more rounds of updates to the proposals were conducted, with Boeing being picked by the selection board. In November 1962, McNamara selected General Dynamics' proposal due to its greater commonality between USAF and Navy versions. The Boeing aircraft shared less than half of the major structural components. On 21 December 1962, General Dynamics signed
9408-503: The RAAF F-111Cs frequently did these "Dump & Burn" maneuvers (also known as the "Zippo" and the "Torch") starting at Maple Flag in the 1980s. In 2000, two women graduated from the No. 6 Squadron conversion course becoming the first female F-111 Navigators. In mid-2006, an RAAF F-111 was chosen to scuttle the North Korean ship Pong Su which had been involved in one of Australia's largest drug hauls in recorded history. The ship had been sitting in Snails Bay, off Birchgrove , while
9555-413: The RAAF feared being the only customer. The government determined that it did not need to go ahead with an immediate replacement for the Canberra and preferred Hancock's original choice of the TFX as a long-term solution, leading to the Menzies government's announcement on 24 October that it was ordering 24 F-111s for US$ 125 million, enough for two squadrons. The announcement came during the campaigning for
9702-434: The RAAF's Canberras in the bombing and tactical strike role. While the first aircraft was officially handed over on 4 September 1968, structural issues delayed the entry into service of the F-111C. Twenty-four USAF F-4 Phantom IIs were leased as an interim measure. The Phantoms were delivered in September and October 1970 to No. 82 Wing at RAAF Base Amberley , Queensland. During its next three years in RAAF service , one F-4
9849-431: The RAAF's F-111 fleet began with the retirement of the F-111G models operated by No. 6 Squadron in late 2007. The United States had retired the F-111 (it "was nine percent of Tactical Air Command 's fleet but ate up a whopping 25 percent of the maintenance budget", USAF pilot Richard Crandall said) so Australia was the only operator. By 2009 the remaining 18 aircraft reportedly required the most maintenance of any warplane in
9996-415: The RAAF's F-111 flight simulator. From 2001 onwards, Boeing Australia performed all F-111 maintenance under a contract with the Australian government. After entering service the F-111 proved highly successful. Although it never saw combat, the F-111C was the fastest, longest range combat aircraft in Southeast Asia. Aviation historian Alan Stephens has written that they were "the preeminent weapons system in
10143-423: The TFX contract. A congressional investigation into the procurement processed was conducted, but did not change the selection. On 1 May 1964, the definitized contract was issued for the program, including flight testing, spares, ground equipment, training devices, static and fatigue test data, and the production of an initial 23 F-111 aircraft; it was structured as a fixed price incentive fee (FPIF) contract with
10290-405: The Transonic Aircraft Technology and Advanced Fighter Technology Integration programs in the 1970s and 1980s. It retired to the United States Air Force Museum at Wright-Patterson Air Force Base in 1989. Unconverted F-111As were mothballed at Aerospace Maintenance and Regeneration Center at Davis-Monthan Air Force Base in June 1991. The F-111B was to be a fleet air defense (FAD) fighter for
10437-554: The U.S. Rockwell B-1 Lancer bomber (1974); and the European Panavia Tornado (1974). The Sukhoi Su-24 was very similar to the F-111. The U.S. Navy's role intended for the F-111B was instead filled by another variable-geometry design, the Grumman F-14 Tomcat . The first of six initial production F-111s was delivered on 17 July 1967 to fighter squadrons at Nellis Air Force Base . These aircraft were used for crew training. 428th Tactical Fighter Squadron achieved initial operational capability on 28 April 1968. After early testing,
10584-432: The U.S. Navy, fulfilling a requirement for a carrier-based fighter aircraft armed with heavy, long-range missiles to defend aircraft carriers and their battle groups from Soviet bombers and fighter-bombers equipped with anti-ship missiles. General Dynamics, lacking experience with carrier-based aircraft, partnered with Grumman for this version. Seven F-111Bs were completed for testing but it never entered fleet service. It had
10731-534: The US Navy was to carry two AIM-54 Phoenix long-range air-to-air missiles in the bay. The cannon had a large 2,084-round ammunition tank, and its muzzle was covered by a fairing; however, it was rarely fitted on F-111s. The F-111C and F-111F were equipped to carry the AN/AVQ-26 Pave Tack targeting system on a rotating carriage that kept the pod protected within the weapons bay when not in use. Pave Tack featured
10878-588: The USAF at the start of the program was placed at US$ 124.5 million, but by April 1967 had risen to $ 237.75 million. While the initial price of US$ 5.21 million per aircraft was capped at US$ 5.95 million, R&D, labor, and other costs were not. The rising price, three unexplained losses of USAF F-111As in Vietnam during their first month of deployment, and the British and U.S. Navy's orders' cancellations caused further controversy in Australia during 1968. By 1973, however, when
11025-500: The USAF opted to ground the fleet due to this issue, save for those involved in flight testing. The resolution involved the redesigning of the attach structure and necessitated testing to ensure adequate design and workmanship. On 31 July 1970, the grounding was lifted. Category I flight testing of the F-111A, which had started in 1964, continued through to 31 March 1972. Category II tests started in January 1966, while Category III testing
11172-631: The USAF. The FB-111A strategic bomber and the EF-111 electronic warfare versions were also later developed for the USAF. Production ended in 1976, with a total of 563 F-111s of all variants built, well below the prediction of 1,500. The Menzies government first publicly discussed the need for replacing the English Electric Canberra in 1954, only a year after the RAAF began receiving the bomber. The non-supersonic Canberra lacked radar and electronic countermeasures , all disadvantages based on Korean War experience. The RAAF believed that it needed
11319-400: The aft fuselage and the landing gear of the F-111A. The General Dynamics and Grumman team faced ambitious requirements for range, weapons load, and aircraft weight. Thus, the F-111 was designed to incorporate numerous features that were new to production military aircraft, such as variable-geometry wings and afterburning turbofan engines. This use of unfamiliar features has been attributed as
11466-451: The aircraft best suited for the role. The Mirage IV had insufficient range and the A£108 million price was too expensive. The F-4 and the A-5 were immediately available, but the less expensive F-4 would need air-to-air refueling to reach Indonesia from Australia. The TSR-2 was behind schedule and over budget, was the most expensive at A£122 million for 24 aircraft, and British government support for
11613-457: The aircraft returned to Australia in August 1979 where it conducted further tropical weather trials at Darwin. The other three aircraft were modified by the RAAF's No. 3 Aircraft Depot at RAAF Base Amberley in 1980, using kits purchased from General Dynamics. The RF-111C variant proved to be highly successful, and was considered to be among the best tactical reconnaissance aircraft in the world. Three of
11760-673: 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". In 1983 the Hawke government tasked an RF-111 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
11907-643: The aircraft were not delivered until 1973 because of long-running technical problems. During 1979 and 1980 four of these aircraft were converted to the RF-111C reconnaissance variant. Four ex– United States Air Force (USAF) F-111As were purchased by Australia and converted to F-111C standard in 1982 to replace F-111Cs destroyed during accidents. Australia also operated 15 F-111Gs between 1993 and 2007, mainly for conversion training. The RAAF retired its remaining F-111Cs in December 2010. In Australian military and aviation circles,
12054-496: The aircraft's "Pig" nickname during its Australian service. Developed in the 1960s by General Dynamics under Robert McNamara 's TFX Program , the F-111 pioneered variable-sweep wings , afterburning turbofan engines, and automated terrain-following radar for low-level , high-speed flight. Its design influenced later variable-sweep wing aircraft, and some of its advanced features have become commonplace. The F-111 suffered problems during initial development, largely related to
12201-408: The aircraft's centerline was reported by NASA in 1958, which made swing-wings viable. This led USAF leaders to encourage its use. In June 1960, the USAF issued specification SOR 183 for a long-range interdiction/strike aircraft able to penetrate Soviet air defenses at very low altitudes and high speeds. Specifically, it was to be capable of at least 800 miles of low-level flight, 400 of which
12348-594: The aircraft. The Menzies government viewed the British promise to deploy a squadron of V bombers in Australia for interim defense until the TSR-2 was ready as unacceptable for both technical and political reasons. Beyond its cost, the Royal Air Force had not ordered the TSR-2; the Chief of the Defence Staff Lord Louis Mountbatten , who opposed it, advised the Australians against buying the aircraft and
12495-416: The airframes. The remaining ex-RAAF F-111s will be placed on display. The F-111C was the export version for Australia, combining the F-111A design with the longer F-111B wings and the strengthened FB-111A undercarriage. Four F-111C aircraft were modified to RF-111C reconnaissance configuration. These aircraft met the RAAF's requirement for aircraft to reinstate its photographic reconnaissance capacity. While
12642-505: The alliance. While SEATO military forces held joint military training, they were never deployed because of internal disagreements. SEATO was unable to intervene in conflicts in Laos because France and the United Kingdom rejected the use of military action. As a result, the U.S. provided unilateral support for Laos after 1962. Though sought by the U.S., involvement of SEATO in the Vietnam War
12789-526: The best option was to base the design on the USAF requirement, and use a modified version for the Navy. In June 1961, Secretary McNamara ordered the go ahead of Tactical Fighter Experimental (TFX), despite USAF and Navy efforts to keep their programs separate. According to aviation author Peter E. Davis, military officials were disconcerted by McNamara's focus on compromised requirements for financial reasons. The two services could agree only on swing-wing, two-seat, twin-engine design features. The USAF wanted
12936-630: The closest Australia's F-111s ever came to combat. F-111s from both No. 1 and No. 6 Squadrons were deployed to RAAF Base Tindal , Northern Territory, on 28 August to support the international forces, and remained there until 17 December 1999. This was a maximum effort for No. 82 Wing, and up to 10 F-111Cs were available at Tindal; No. 1 Squadron's commitment peaked at six aircraft and about 100 personnel. No. 75 Squadron also maintained 12 F/A-18s at its home base of Tindal to support INTERFET if needed. From 20 September, when INTERFET began to arrive in East Timor,
13083-562: The collective defense of the member states. The organization, headquartered in Bangkok , was created in 1955 at the first meeting of the Council of Ministers set up by the treaty. This was contrary to Dulles's preference to call the organization "ManPac" (Manila Pact) to avoid public identification of the pact with NATO. Organizationally, SEATO was headed by the Secretary General, whose office
13230-471: The control of No. 82 Wing . In Australia, the F-111 was affectionately known as the "Pig". The purchase proved to be highly successful for the RAAF. Although it never saw combat, the F-111C was the fastest, longest range combat aircraft in Southeast Asia, providing Australia with independent strike capability. Benny Murdani told Kim Beazley that when others became upset with Australia during Indonesian cabinet meetings , Murdani told them "Do you realise
13377-602: The country just before the 1963 election as an interim Canberra replacement, likely another sign of the American preference for Menzies— because the B-47 did not offer significant improvements over the Canberra and, like the V bombers, would require longer runways. The immensely complex and ambitious F-111 design and construction process forced the Australian government to quickly adopt sophisticated American procurement and project management methods. Although Australia originally planned to buy
13524-403: The early 1970s, the question of dissolving the organization arose. Pakistan withdrew in 1973, after East Pakistan seceded and became Bangladesh on 16 December 1971. South Vietnam was defeated in war and annexed by North Vietnam and France withdrew financial support in 1975, and the SEATO council agreed to the phasing-out of the organization. After a final exercise on 20 February 1976,
13671-520: The engines. The F-111's maximum practical weapons load was limited, since the fixed pylons could not be used with the wings fully swept. Tactical F-111s were fitted with shoulder rails on the four inner swiveling pylons to mount AIM-9 Sidewinder air-to-air missiles for self-defense. Australian F-111Cs were equipped to launch the Harpoon anti-ship missile, and the Popeye stand-off missile. FB-111As could carry
13818-680: The engines. A fighter variant intended for the United States Navy , the F-111B , was canceled before production; it was intended for aircraft carrier-based roles, including long-range interception . Several specialized models, such as the FB-111A strategic bomber and the EF-111A electronic warfare aircraft, were also developed. The F-111 entered service in 1967 with the United States Air Force (USAF). The Royal Australian Air Force (RAAF) also ordered
13965-422: The fighter world", according to F-111 pilot Richard Crandall) to fly as low as 200 feet (61 m) above ground level at 480 knots (890 km/h) or faster in most weather conditions made it very effective; missions did not require tankers or ECM support, and they could operate in weather that grounded most other aircraft. One F-111 could carry the bomb load of four McDonnell Douglas F-4 Phantom IIs. The worth of
14112-456: The final flight by aircraft from No. 6 Squadron over southern Queensland. Between 21 and 24 November 2011, 23 of the RAAF's F-111C and F-111Gs which had not been selected for preservation were buried at the Swanbank landfill site outside of Ipswich, Queensland . The RAAF had considered scrapping these aircraft, but concluded that it would be cheaper to bury them as they also contained asbestos in
14259-478: The first time. However, development delays and structural problems delayed acceptance of aircraft by the RAAF until 1973. These issues were mainly to do with the wing attach points , and the redesign of the F-111 engine intakes. Completion of contractual requirements to the satisfaction of Australia also took time, damaging the morale of the hundreds of trained RAAF personnel who had little to do. The program costs, during 1963–1967, grew at an alarming rate; estimates by
14406-756: The four RF-111Cs remained in RAAF service until 2010. The other aircraft was retired in 2006 after suffering damage from landing on its belly after one of its main wheels separated during takeoff; although the aircraft was repairable it was judged not worthwhile doing so due to the impending retirement of the entire F-111 fleet. The RAAF does not have an aircraft with the RF-111C's intelligence, surveillance and reconnaissance capabilities since they were retired. Data from Wilson and Pittaway General characteristics Performance Armament Related development Aircraft of comparable role, configuration, and era Related lists General Dynamics F-111 Aardvark The General Dynamics F-111 Aardvark
14553-409: The government considered its fate, and it was decided in March 2006 it would be scuttled by air attack. The Pong Su was sunk on 23 March 2006 by two GBU-10 Paveway II laser-guided bombs. Due to the airframe components of the F-111 containing asbestos, the remaining aircraft were buried. Six were spared for museum display. In 2007, Australia decided to retire all of its RAAF F-111s. The drawdown of
14700-411: The government decided to expand Australia's commitment was to deploy at least two RF-111s, though these aircraft would need to have their electronic warfare equipment upgraded to operate in this war zone. Due to the small size of the RF-111 force, the loss of any of these aircraft in combat would have inflicted a heavy blow on Australia's reconnaissance capability. The second preference in the advice put to
14847-554: The government was to deploy a squadron of four to eight F-111Cs, though Defence did not support this. In the event, the government decided to not expand the Australian force. As a result, the F-111Cs' contribution to the war was limited to conducting intensive exercises with the Naval ships as they sailed through Australian waters en route to the Persian Gulf. The Australian-led INTERFET intervention into East Timor in September 1999 marked
14994-452: The high maintenance time required for every flight hour, the F-111's retirement began with the F-111G models operated by No. 6 Squadron in late 2007. Twenty-four Boeing F/A-18E/F Super Hornets were procured as an interim replacement as the Lockheed Martin F-35 Lightning II program was delayed. The last F-111s were retired on 3 December 2010. The F-111A was the initial production version of
15141-533: The lingering threat coming from communist North Vietnam and the possibility of the domino theory with Indochina turning into a communist frontier, SEATO got these countries under its protection – an act that would be considered to be one of the main justifications for the U.S. involvement in the Vietnam War . Cambodia, however rejected the protection in 1956. The majority of SEATO members were not located in Southeast Asia . To Australia and New Zealand, SEATO
15288-418: The loss of a third F-111A (66-0024) on 22 April halted F-111A combat operations. The squadron returned to the United States in November. The cause of the first two losses is unknown as the wreckages were never recovered. It turned out that the third loss was traced to a failure of a hydraulic control-valve rod for the horizontal stabilizer which caused the aircraft to pitch up uncontrollably. Further inspection of
15435-411: The maintenance budget" —the F-111 was in service with the USAF from 1967 through 1998. The FB-111s were operated by Strategic Air Command from 1969 before conversion to F-111G and transferred to Air Combat Command (ACC) until their retirement in 1993. At a ceremony marking the F-111's USAF retirement, on 27 July 1996, it was officially named Aardvark, its long-standing unofficial name. The USAF retired
15582-408: The mid-1980s. They underwent an extensive Avionics Upgrade Program through 1998. Under this program, the F-111C was upgraded to digital avionics. This included twin mission computers, modern digital databus, digital weapon management system, new AN/APQ-171 terrain-following radar, new AN/APQ-169 attack radar, and twin ring-laser gyro INS . In late 2001, wing fatigue problems were discovered in one of
15729-494: The minister responsible, Senator Gareth Evans , earning the nickname " Biggles " (after the famous hero pilot of a number of books by Captain W. E. Johns ). Another aspect of the F-111 which drew criticism was the poor work conditions for F-111 ground crew involved in sealing/de-sealing F-111 fuel tanks resulted in a class action lawsuit and the Australian government paying out more than A$ 20 million in damages. The health issues with chemical exposure included permanent brain damage to
15876-472: The new Triple Plow II intakes, which were located four inches (100 mm) further away from the airframe to prevent engine ingestion of the sluggish boundary layer air that was known to cause stalls in the TF30 turbofans. It had more powerful TF30-P-9 engines with 12,000 lbf (53 kN) dry and 18,500 lbf (82 kN) afterburning thrust. SEATO The Southeast Asia Treaty Organization ( SEATO )
16023-450: The new aircraft was beginning to show; F-111s flew more than 4,000 combat missions in Vietnam with only six combat losses. From 30 July 1973, F-111As of the 347th Tactical Fighter Wing (347th TFW) were stationed at Takhli Air Base. The 347th TFW conducted bombing missions in Cambodia in support of Khmer Republic forces until 15 August 1973 when US combat support ceased in accordance with
16170-482: The next five years, and proposed to send a team led by Hancock overseas to evaluate Canberra replacements. Early candidates were the French Dassault Mirage IV , the TSR-2, and the U.S. North American A-5 Vigilante , McDonnell Douglas F-4 Phantom II and the TFX. From June to August, Hancock's team visited France, Britain and the United States to evaluate the competitors, and determined that the TFX would be
16317-404: The nose of the aardvark . The origin of the name has been attributed to F-111A Instructor Pilot Al Mateczun in 1969, as the aircraft had not received an official USAF name. During September 1972, the F-111 returned to Southeast Asia, stationed at Takhli Air Base , Thailand. F-111As from Nellis AFB participated in the final month of Operation Linebacker and later flew 154 low-level missions in
16464-480: The opposition's. The contract was signed the following year through the U.S. Department of Defense. The British government's cancellation of the TSR-2 in April 1965 showed that Australia's decision to not order it was correct. The U.S. offered two squadrons of Boeing B-47 Stratojets for free lease pending the delivery of the F-111; Australia declined the offer in June 1964—despite the aircraft having been demonstrated around
16611-415: The original order for F-111s specified that 18 would be strike variants and six reconnaissance variants, the RAAF later agreed to accept all 24 as strike aircraft and later retrofit six with reconnaissance pallets. In 1971 the USAF dropped plans to fit some of its F-111s as reconnaissance aircraft, but sold the design of the reconnaissance pallet to Australia for $ 3 million. At this time the RAAF decided to fit
16758-423: The pallet to four rather than six aircraft. The reconnaissance pallet contains four cameras and an infrared linescanner unit and is fitted in the F-111's weapons bay. The RF-111Cs retained their strike capability. The first F-111C, A8-126 selected for conversion to the RF-111C variant was modified at General Dynamics plant at Fort Worth, Texas between October 1978 and 18 April 1979. After four months of test flights,
16905-405: The penetrating bunker-buster GBU-28 . Eighteen F-111Es were also deployed during the operation. The US Air Force credited F-111s with destroying more than 1,500 Iraqi tanks and armored vehicles. Their use in the anti-armor role was dubbed " tank plinking ". Expensive to operate—Crandall said that the aircraft "was nine percent of Tactical Air Command's fleet but ate up a whopping 25 percent of
17052-622: The present moment". He stated, however, that the available foreign bombers were unsuitable for the RAAF. The American Boeing B-52 Stratofortress and Convair B-58 Hustler , for example, were too large for existing Australian runways. More suitable aircraft such as the British BAC TSR-2 and the American TFX (later the F-111) would soon be available, Osborne said. In May 1963 Menzies announced an A£ 200 million increase in defense spending over
17199-438: The program was uncertain. While the TFX was also controversial in the United States, its promised performance specifications and per-aircraft cost were superior to that of the TSR-2. As he did not expect TFX to be available before 1970, however, Hancock recommended buying 36 A-5 aircraft for A£88 million to counteract the perceived imminent threat from Indonesia. The Menzies government was reluctant to choose as interim replacement
17346-454: The program were enacted throughout 1965; this was chiefly in response to a steep climb in unit costs from $ 4.5 million to $ 6 million. The cause of the cost rises has been attributed, at least partially, to a directive issued to General Dynamics to incorporate improved avionics as well as to work on strategic bomber and aerial reconnaissance variants of the aircraft, the latter of which was eventually cancelled. During April 1965, General Dynamics
17493-476: The proposals lacking, but Boeing and General Dynamics were selected to submit enhanced designs. Boeing's proposal was recommended by the selection board in January 1962, with the exception of the engine, which was not considered acceptable. Switching to a crew escape capsule, instead of ejection seats and alterations to radar and missile storage were also needed. Both companies provided updated proposals in April 1962. USAF reviewers favored Boeing's offering, while
17640-400: The pylons. Auxiliary fuel drop tanks with 600 US gallons (2,300 litres) capacity each could be fitted. The design of the F-111's fuselage prevented the carriage of external weapons under the fuselage, but two stations were available on the underside for electronic countermeasures (ECM) pods and/or datalink pods; one station was on the weapons bay, and the other on the rear fuselage between
17787-493: The region but with an interest either in the region or the organization itself. They were Australia (which administered Papua New Guinea , until 1975), France (which had recently relinquished French Indochina , by 1955), New Zealand , Pakistan (which, until 1971, included East Pakistan , now Bangladesh ), the Philippines , Thailand , the United Kingdom (which administered Hong Kong , North Borneo and Sarawak ) and
17934-423: The remaining fleet of F-111As revealed 42 aircraft with the same potential failures. It is speculated that this failure could also have contributed to the two earlier losses had the failure caused a pitch down while at low altitude. It was not until 1971 that 474 TFW was fully operational. The word "aardvark" is Afrikaans for "earthpig" and reflects the look of the long nose of the aircraft that might remind one of
18081-487: The same airframe structural components and TF30-P-1 turbofan engines. They featured side-by-side crew seating in an escape capsule , as required by the Navy. Because of conflict between the Air Force and Navy over whose requirements had precedence, McNamara intervened in 1961, declaring that the Air Force desires would override suggestions by the Navy. The F-111A variant first flew on 21 December 1964 from Carswell AFB, Texas. It
18228-645: The same conventional ordnance as the tactical variants, but their wing pylons were more commonly used for either fuel tanks or strategic nuclear gravity bombs. They could carry up to four AGM-69 SRAM nuclear missiles on the pylons. The F-111 was the first production variable-geometry wing aircraft. Several other types have followed with similar swing-wing configuration, including the Soviet Sukhoi Su-17 "Fitter" (1965), Mikoyan-Gurevich MiG-23 "Flogger" (1967), Tupolev Tu-22M "Backfire" (1969), Sukhoi Su-24 "Fencer" (1970) and Tupolev Tu-160 "Blackjack" (1981);
18375-515: The services study the development of a single aircraft that would satisfy both requirements. The Tactical Fighter Experimental (TFX) requirements were based largely on the Air Force's needs. A request for proposals (RFP) for the TFX was provided to industry in October ;1961. After four rounds of proposals, General Dynamics (GD) was selected over Boeing ; GD signed the TFX contract in December 1962. The USAF F-111A and Navy F-111B variants used
18522-547: The weapons bay when not in use. Pave Tack is a FLIR and laser rangefinder / designator that allowed the F-111 to designate targets and drop laser-guided bombs on them. RF-111Cs carried a pallet of sensors and cameras for reconnaissance use. F-111Cs were also equipped to launch the AGM-84 Harpoon anti-ship missile and the AGM-142 Popeye stand-off missile. The Australian government ordered 24 F-111C aircraft to replace
18669-653: The world, an average of 180 hours for every flight hour compared to 30 hours for the F-22 Raptor . In March 2008, after a review, the new Labor government confirmed the previous Howard Government's decision to the purchase of 24 F/A-18F Super Hornets until the delivery of the F-35 Lightning II ; in 2010, the government signed the acquisition contract. The final RAAF F-111 aircrew conversion took place in 2009, with four pilots and two Air Combat Officers (ACOs) qualifying. The RAAF retired its last F-111s on 3 December 2010, after
18816-419: Was NASA's simplification which made the variable geometry wings practical. By 1960, increases in aircraft weights required improved high-lift devices , such as variable geometry wings. Variable geometry offered high speeds, and maneuverability with heavier payloads , long range, and the ability to take off and land in shorter distances. The USAF and Navy were both seeking new aircraft when Robert McNamara
18963-508: Was also included in the specification. In the 1950s, the United States Navy sought a long-range, high-endurance interceptor aircraft to protect its carrier battle groups against long-range anti-ship missiles launched from Soviet jet bombers and submarines. The Navy needed a fleet air defense (FAD) fighter with a more powerful radar, and longer range missiles than the F-4 Phantom II to intercept both enemy bombers and missiles. Seeking
19110-593: Was an international organization for collective defense in Southeast Asia created by the Southeast Asia Collective Defense Treaty signed in September 1954 in Manila , Philippines. The formal institution of SEATO was established on 19 February 1955 at a meeting of treaty partners in Bangkok , Thailand. The organization's headquarters was also in Bangkok. A total of eight members joined the organization in its lifetime. Primarily created to block further communist gains in Southeast Asia, SEATO
19257-403: Was an all-moving stabilator . The F-111 used a three-point landing gear arrangement, with a two-wheel nose gear and two single-wheel main landing gear units. The landing gear door for the main gear, which was positioned in the center of the fuselage, also served as a speed brake in flight. Most F-111 variants included a terrain-following radar system connected to the autopilot. The aircraft
19404-429: Was an all-weather attack aircraft capable of low-level penetration of enemy defenses to deliver ordnance on the target. It featured variable geometry wings , an internal weapons bay and a cockpit with side-by-side seating. The cockpit formed part of an escape crew capsule . The F-111 had a three-point undercarriage arrangement with a two-wheel nose gear and two single-wheel main undercarriage. Most F-111 variants included
19551-404: Was an upgraded F-111A equipped with newer Mark II avionics, more powerful engines, improved intake geometry, and an early glass cockpit . It was first ordered in 1967 and delivered from 1970–73 after delays due to avionics issues. The F-111D reached initial operational capability in 1972; the sole operator was the 27th TFW stationed at Cannon AFB , New Mexico. 96 were built. The F-111D used
19698-433: Was appointed secretary of defense in January 1961. The aircraft sought by the two armed services shared the need to carry heavy armament and fuel loads, feature high supersonic speed, twin engines and two seats, and probably use variable geometry wings. On 14 February 1961, McNamara formally directed the services to study the development of a single aircraft that would satisfy both requirements. Early studies indicated that
19845-439: Was authorized to produce 431 F-111s, less than half the number of aircraft which had originally been forecast. On 10 May 1967, a new multi-year FPIP contract replaced the prior procurement process, increasing the total aircraft on order to 493 F-111s of multiple models, including 23 F-111Bs intended for the US Navy, 24 F-111Cs for the Royal Australian Air Force , and 50 F-111Ks intended for the Royal Air Force . Early flights of
19992-481: Was commanded by Group Captain John Newham , who later served as Chief of the Air Staff between 1985 and 1988. The RAAF's first six F-111Cs arrived at Amberley on 1 July 1973, and three subsequent groups of six F-111s arrived on 27 July, 28 September and 4 December. F-111Cs were allocated to No. 1 Squadron and No. 6 Squadron , under the control of No. 82 Wing. No. 1 Squadron was the RAAF's strike squadron, and maintained
20139-497: Was created in 1957 at a meeting in Canberra , with a council of representatives from member states and an international staff. Also present were committees for economics, security, and information. SEATO's first Secretary General was Pote Sarasin , a Thai diplomat and politician who had served as Thailand's ambassador to the U.S. between 1952 and 1957, and as Prime Minister of Thailand from September 1957 to 1 January 1958. Unlike
20286-472: Was denied because of lack of British and French cooperation. Both the United States and Australia cited the alliance as justification for involvement in Vietnam. U.S. membership in SEATO provided the United States with a rationale for a large-scale U.S. military intervention in Southeast Asia. Other countries, such as the UK and key states in Asia, accepted the rationale. In 1962, as part of its commitment to SEATO,
20433-441: Was followed by the F-111B, which first flew on 18 May 1965. As F-111 development continued, stall issues arose in certain parts of the flight regime; these were addressed by modifying the engine inlet in 1965–66, ending with the "Triple Plow I" and "Triple Plow II" designs. The F-111B was cancelled by the Navy in 1968 due to weight and performance deficiencies. The improved F-111E, F-111D, F-111F models were subsequently developed for
20580-528: Was kept updated with key developments due to its close relationship with the United Kingdom. The states newly formed from French Indochina ( North Vietnam , South Vietnam , Cambodia and Laos ) were prevented from taking part in any international military alliance as a result of the Geneva Agreements signed 20 July of the same year concluding the end of the First Indochina War . However, with
20727-465: Was lost over Libya and crashed into the Mediterranean Sea, probably shot down. F-111s participated in the Gulf War (Operation Desert Storm) in 1991. During Desert Storm, F-111Fs completed 3.2 successful strike missions for every unsuccessful one, better than any other U.S. strike aircraft used in the operation. The group of 66 F-111Fs dropped almost 80% of the war's laser-guided bombs, including
20874-423: Was lost. By June 1973, the remaining 23 Phantoms were returned to the U.S. Like the F-111, the F-4 was a two-seat, multi-role, supersonic aircraft. Much more sophisticated than the Canberra, capable of air-to-air and air-to-ground attack roles; it had inertial navigation, a gun and radar. Experience with the F-4 likely contributed to the RAAF's success with the F-111. The RAAF proposed keeping the F-4 and using it with
21021-474: Was part of an escape crew capsule . The wing sweep varied between 16 degrees and 72.5 degrees (full forward to full sweep). The wing included leading edge slats and double slotted flaps over its full length. The airframe was made up mostly of aluminum alloys with steel, titanium and other materials used in places. The fuselage was made of a semi- monocoque structure with stiffened panels and honeycomb structure panels for skin. The horizontal stabilizer
21168-498: Was powered by two Pratt & Whitney TF30 afterburning turbofan engines. The F-111's variable-geometry wings, escape capsule, terrain following radar and afterburning turbofans were new technologies for production aircraft. The F-111 featured an internal weapons bay that could carry bombs, a removable 20 mm M61 cannon or auxiliary fuel tanks. For bombs, the bay could hold two 750 lb (340 kg) M117 conventional bombs, one nuclear bomb or practice bombs. The F-111B for
21315-403: Was repeatedly postponed before being cancelled, having been deemed to be unnecessary. During 1968, the F-111B was canceled by the Navy on account of weight and performance issues together with revised tactical requirements. Australia would procure its own model, the F-111C. Subsequently, the improved F-111E, F-111D, and F-111F models were developed for the USAF. The strategic bomber FB-111A and
21462-522: Was seen as a more satisfying organization than ANZUS – a collective defense organization with the U.S. The United Kingdom and France joined partly due to having long maintained colonies in the region, and partly due to concerns over developments in Indochina . The U.S., upon perceiving Southeast Asia to be a pivotal frontier for Cold War geopolitics, saw the establishment of SEATO as essential to its Cold War containment policy . The membership reflected
21609-400: Was to be at a speed of no less than Mach 1.2. Furthermore, the specification also called for the aircraft to possess short takeoff and landing (STOL) capabilities to permit operations from short, unprepared airstrips that had a length of no more than 3,000 feet. An internal payload of 1,000lb was to be carried in the primary mission role. A variant suitable for aerial reconnaissance flights
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