Northrop F-5E/F Tiger II in Service with Iran
  
During the early 1960s, the Shah maintained tight control over Iran--he   banned or suppressed most opposition parties, muzzled the press, and   strengthened his secret police, the dreaded SAVAK (Sazman-e Ettelaat va   Amniyat-e Keshvar). Elections to the Iranian legislature, known as the Majlis   were closely controlled.  Nevertheless, under   prodding from the Kennedy administration in the US, the Shaw began a major   program of reform in 1963, and marked the beginning of nearly a decade of   impressive economic growth and relative political stability at home. During this   period, the Shah also used Iran's enhanced economic and military strength to   secure for the country a more influential role in the Persian Gulf region, and   he improved relations with Iran's immediate neighbors and the Soviet Union and   its allies.  
In the aftermath of the British withdrawal from the Persian Gulf, the Shah   announced his intention that Iran would play the primary role in guaranteeing   Gulf security. This strategy happened to coincide with President Richard M.   Nixon's strategy for the region, which sought to encourage United States allies   to shoulder greater responsibility for regional security. During his 1972 visit   to Iran, Nixon took the unprecedented step of allowing the Shah to purchase just   about any conventional weapon he wanted from the United States arsenal in any   quantities he believed necessary for Iran's defense 
As part of the ambitious plan by the Shah of Iran to make his nation the   dominant military power in the Persian Gulf, the government of Iran ordered   massive amounts of arms from the West, particularly the United States. Among   these were large numbers of F-5E and F Tiger IIs to equip the Imperial Iranian   Air Force (IIAF). 
The first examples were delivered in January of 1974, when 28 F-5Fs were   received in Iran for conversion training. By this time, Iran had disposed of   virtually all of its earlier-model F-5A/Bs, selling them to Greece, Turkey,   Ethiopia, South Vietnam, and Jordan. 
A total of 166 F-5Es and Fs were supplied to Iran between 1974 and 1976,   enough to equip eight squadrons. The Imperial Iranian Air Force F-5E/Fs were   equipped to a high standard, with an onboard Litton inertial navigation system   and weapons/ ballistic computer. 
By early 1977, the Iranian economy had begun to run into trouble. The attempt   to use Iran's oil revenues to finance industrial expansion and construction   proved to be overly ambitious, and the massive military buildup greatly strained   Iran's resources and caused severe economic and social dislocation. Official   corruption became rampant, rapid inflation took place, and the gap between the   rich and poor got wider and wider.  In addition, by 1978 there were 60,000   foreigners in Iran--45,000 of them Americans--engaged in business or in military   training and advisory missions. Combined with the superficial Westernization   evident in dress, life styles, music, films, and television programs, this   foreign presence tended to intensify the perception that the Shah's   modernization program was threatening the society's Islamic and Iranian cultural   values and identity. Increasing political repression and the establishment of a   one-party state in 1975 further alienated the educated classes. 
The Shah was well aware of the rising resentment and dissatisfaction in his   country and the increasing international concern about the suppression of basic   freedoms in Iran. In addition, President Jimmy Carter, who took office in   January 1977, was making an issue out of human rights violations in countries   with which the United States was associated. The Shah, who had been pressured   into a program of land reform and political liberalization by the Kennedy   administration, was sensitive to possible new pressures from Washington. The   government attempted to ameliorate some of the problems with the growing gap   between the rich and the poor by introducing some progressive economic measures   such as free secondary education, increased financial support for university   students, an ambitious national health insurance plan, and a profit-sharing plan   with workers in several key industries.  In response to international pressure,   the Shah did release some political prisoners and did introduce some protections   for civilians brought before military courts.  
Most of the new progressive economic measures were badly implemented and did   little to alleviate the growing gap between rich and poor.  An attempt to cool   off the overheated economy introduced some austerity measures which proved to be   widely unpopular. A more open opposition now began to appear, and people how   heretofore had been silent began to speak out and demand the restoration of   basic liberties. Certain political parties were allowed to resume activity. 
A series of increasingly violent protests broke out in Iran.  Initially,   protests were primarily led by middle-class intellectuals, lawyers, and secular   politicians which demanded the restoration of constitutional rule.  However, the   protests soon began to be led by religious elements and were centered on mosques   and religious events. The protesters sometimes used a form of calculated   violence to achieve their ends, attacking and destroying carefully selected   targets that represented objectionable features of the regime, such as   nightclubs and cinemas that were symbols of moral corruption and the influence   of Western culture as well as banks that were symbols of economic   exploitation.    
In June of 1963, Ayatollah Sayyid Ruhollah Musavi Khomeini, a religious   leader in Qom, had been arrested after making a fiery speech in which he   directly attacked the Shah.  Khomeini was released from house arrest in April   1964, but was was arrested again in November after giving another fiery   anti-government sermon, and was sent into exile in Turkey. In October 1965, he   was permitted to take up residence in the city of An Najaf, Iraq--the site of   numerous Shia shrines--where he was to remain for the next thirteen years.   Khomeini, in exile in Iraq, continued to issue antigovernment statements, to   attack the Shah personally, and to organize supporters. He argued that monarchy   was a form of government abhorrent to Islam, that true Muslims must strive for   the establishment of an Islamic state.   A network of clerics worked for   Khomeini in Iran, returning from periods of imprisonment and exile to continue   their activities. Increasing internal difficulties in the early 1970s gradually   won Khomeini a growing number of followers. 
The protests in Iran now aimed at more fundamental change.  In slogans and   leaflets, the protesters attacked the Shah and demanded his removal, and they   depicted Khomeini as their leader and an Islamic state as their ideal. From his   exile in Iraq, Khomeini continued to issue statements calling for further   demonstrations, rejected any form of compromise with the regime, and called for   the overthrow of the Shah. 
On December 9 and 10, 1978, in the largest antigovernment demonstrations in a   year, several hundred thousand persons participated in marches in Tehran and the   provinces. In December 1978, the Shah finally began exploratory talks with   members of the moderate opposition.  At the end of December, a National Front   leader, Shapour Bakhtiar, agreed to form a government on the condition that the   Shah leave the country. Bakhtiar secured a vote of confidence from the two   houses of the Majlis on January 3, 1979, and presented his cabinet to the Shah   three days later.  The Shah, announcing he was going abroad for a short holiday,   left the country on January 16, 1979. As his aircraft took off, celebrations   broke out across the country.  He was destined never to return. 
Once installed as prime minister, Bakhtiar took several measures designed to   appeal to elements in the opposition movement. He lifted restrictions on the   press, he released the remaining political prisoners and promised the   dissolution of SAVAK, the lifting of martial law, and free elections. He   announced Iran's withdrawal from CENTO, canceled US$7 billion worth of arms   orders from the United States, and announced that Iran would no longer sell oil   to South Africa or Israel. Although Bakhtiar won the qualified support of   moderate clerics, his measures did not win him the support of Khomeini and the   main opposition elements, who were now committed to nothing less than the   overthrow of the monarchy and the establishment of a new political order. 
In the meantime, Khomeini was making plans to return to Iran. Bakhtiar sought   unsuccessfully to persuade Khomeini to postpone his return to Iran until   conditions in the country were normalized.  Nevertheless, Khomeini arrived in   Tehran from Paris on February 1, 1979, received a rapturous welcome from   millions of Iranians, and announced he would "smash in the mouth of the Bakhtiar   government."  He labeled the government illegal and called for the strikes and   demonstrations to continue. On February 5, Khomeini named Mehdi Bazargan as   prime minister of a provisional government.  In many large urban centers local komitehs (revolutionary committees) had assumed responsibility for   municipal functions, including neighborhood security and the distribution of   such basic necessities as fuel oil. Government ministries and such services as   the customs and the posts remained largely paralyzed. Bakhtiar's cabinet   ministers proved unable to assert their authority or, in many instances, even to   enter their offices. The loyalty of the armed forces was being seriously eroded   by months of confrontation with the people on the streets. There were instances   of troops who refused to fire on the crowds, and desertions were rising. In late   January, air force technicians at the Khatami Air Base in Esfahan became   involved in a confrontation with their officers. In his statements, Khomeini had   attempted to win the army rank and file over to the side of the opposition.   Following Khomeini's arrival in Tehran, clandestine contacts took place between   Khomeini's representatives and a number of military commanders.  
On February 8, uniformed airmen appeared at Khomeini's home and publicly   pledged their allegiance to him. On February 9, air force technicians at the   Doshan Tappeh Air Base outside Tehran mutinied. Units of the Imperial Guard   failed to put down the insurrection. The next day, the arsenal was opened, and   weapons were distributed to crowds outside the air base. The government   announced a curfew beginning in the afternoon, but the curfew was universally   ignored. Over the next twenty-four hours, revolutionaries seized police   barracks, prisons, and buildings. On February 11, twenty-two senior military   commanders met and announced that the armed forces would observe neutrality in   the confrontation between the government and the people. The army's withdrawal   from the streets was tantamount to a withdrawal of support for the Bakhtiar   government and acted as a trigger for a general uprising. By late afternoon on   February 12, Bakhtiar was in hiding, and key points throughout the capital were   in rebel hands. The Pahlavi monarchy had collapsed. 
Medhi Bazargan became the first prime minister of the revolutionary regime in   February of 1979.  However, central authority had completely broken down, and   hundreds of semi-independent revolutionary committees were functioning in major   cities and towns.  Factory workers, civil servants, students, and white-collar   employees had seized control of many of their organizations, and there was   considerable disorder in the ranks of the military.  Many parties, ranging all   the way from the far left to the far right, from secular to Islamic   fundamentalist, were all in contention for control of the country.  Through all   of this chaos, Khomeini made policy pronouncements, named personal   representatives to key government organizations, established new institutions,   and announced decisions without consulting his prime minister. The new prime   minister now found he had to share power with the Revolutionary Council, which   Khomeini had established in January 1979 and which initially was composed of   clerics close to Khomeini. 
In May 1979 Khomeini authorized the establishment of the Pasdaran (Pasdaran-e   Enghelab-e Islami, Islamic Revolutionary Guard Corps or Revolutionary Guards).    The Revolutionary Guards was a military force loyal to Khomeini and the clerical   leaders and was a counterbalance to the regular army. 
Khomeini had charged the provisional government with the task of drawing up a   draft constitution. A step in this direction was taken on March 30 and 31, 1979,   when a national referendum was held to determine the kind of political system to   be established. Khomeini rejected demands that voters be given a wide choice.   The only choice that he wanted to appear on the ballot was an Islamic republic,   and voting was not by secret ballot. The government reported an overwhelming   majority of over 98 percent in favor of an Islamic republic, and Khomeini   proclaimed the establishment of the Islamic Republic of Iran on April 1, 1979. 
Khomeini unveiled a draft constitution on June 18. Aside from substituting a   strong president for the monarchy, the constitution did not differ markedly from   the 1906 constitution and did not give the clerics an important role in the new   state structure. Although the provisional government initially had advocated a   popularly elected assembly to complete the Constitution, Khomeini indicated that   this task should be undertaken by an "Assembly of Experts", which would be   dominated by Shia clergy.  
The Assembly of Experts convened in August 1979 to write the constitution in   final form for approval by popular referendum. The clerical majority was   generally dissatisfied with the essentially secular draft constitution and was   determined to revise it to make it more Islamic. Produced after three months of   deliberation,  the new constitution was   formally approved by referendum in December of 1979.  
Under the Islamic Republic of Iran constitution,   supreme authority is vested in the faqih, described as a "just and pious jurist"   who is recognized by the majority of the people as being best qualified, with   Khomeini recognized as the first faqih. The faqih performed an overall   supervision of all aspects of the government--he appointed the members to all   the important government posts--the Council of Guardians, the chief judges, the   chief of the armed forces, the commander of the Revolutionary guards, and the   commanders of the navy, air, force, and army. There was a provision for a   President as head of state, but the faqih had the power to approve candidates   for presidential elections and had the power to dismiss a President who had been   impeached by the Majlis.  The head of government was the Prime Minister, who was   selected by the President with the approval of the Majlis.   The members of the   Prime Minister's cabinet (known as the Council of Ministers) were responsible   for establishing government policies and executing laws.  The members of the   Council were selected by the Prime Minister, with the approval of the President   and the Majlis.  Legislative power is granted to the Islamic Consultative   Assembly, the parliament, or Majlis. The Majlis not only has the   responsibility of approving the prime minister and cabinet members but also has   the right to question any individual minister or anyone from the government as a   whole about policies. The Constitution also provides for the Council of   Guardians, which is charged with examining all legislation passed by the Majlis   to ensure that it conforms to Islamic law. 
Abolhasan Bani Sadr, an associate of Khomeini from   the Paris days, was elected as the first President. 
As Iran was turning itself into an Islamic republic, the Shah, who was   seriously ill, was admitted to the United States for medical treatment. Iranians   feared that the Shah would use this visit to the United States to secure United   States support for an attempt to overthrow the Islamic Republic. On November 1,   1979, hundreds of thousands of people marched in Tehran to demand the Shah's   extradition. On November 4, young men who later designated themselves "students   of the Imam's line," occupied the United States embassy compound and took United   States diplomats hostage. Bazargan resigned two days later.  No prime minister   was named to replace him. 
In April the United States attempted to rescue the hostages by secretly   landing aircraft and troops near Tabas, along the Dasht-e Kavir desert in   eastern Iran. Two helicopters on the mission failed, however, and when the   mission commander decided to abort the mission, a helicopter and a C-130   transport aircraft collided, killing eight United States servicemen. 
The failed rescue attempt had some severe negative consequences for the   Iranian military. Radical factions in the IRP and left-wing groups charged that   Iranian officers opposed to the Revolution had secretly assisted the United   States aircraft to escape radar detection. They renewed their demand for a purge   of the military command.  Bani Sadr was able to prevent such a purge, but he was   forced to reshuffle the top military command. In June 1980, the chief judge of   the Army Military Revolutionary Tribunal announced the discovery of an   antigovernment plot centered on the military base in Piranshahr in Kordestan.   Twenty-seven junior and warrant officers were arrested. In July the authorities   announced they had uncovered a plot centered on the Shahrokhi Air Base in   Hamadan. Six hundred officers and men were implicated. Ten of the alleged   plotters were killed when members of the Pasdaran broke into their headquarters.   Approximately 300 officers, including two generals, were arrested, and warrants   were issued for 300 others. The government charged the accused with plotting to   overthrow the state and seize power in the name of exiled leader Bakhtiar.   Khomeini ignored Bani Sadr's plea for clemency and said those involved must be   executed. As many as 140 officers were shot on orders of the military tribunal.    Wider purges of the armed forces soon followed. 
The Islamic fundamentalist regime that took over the country assumed a   rigidly anti-Western stance, and an arms embargo was imposed by most Western   governments against Iran. This embargo caused a severe spare parts and   maintenance problem for Iran's fleet of F-5s and other US-supplied aircraft,   with many aircraft becoming unserviceable and still others being cannibalized to   keep the remainder flying. Even the best-equipped units found it impossible to   operate without Western contractor support and often had personnel that were   inadequately trained and poorly motivated. The political upheavals and purges   caused by the fundamentalist revolution made the situation much worse, with many   pilots and maintenance personnel following the Shaw into exile. As a result, by   1980 the newly-established Islamic Republic of Iran Air Force (IRIAF) was only a   shadow of what the Imperial Iranian Air Force had been. 
One of the earliest focuses of Iran's interest in exporting revolution was   the Persian Gulf area. The revolutionary leaders viewed the Arab countries of   the Gulf, along with Iraq, as having tyrannical regimes subservient to one or   the other of the superpowers. Throughout the first half of 1980, Radio Iran's   increasingly strident verbal attacks on the ruling Baath (Arab Socialist   Resurrection) Party of Iraq irritated that government, which feared the impact   of Iranian rhetoric upon its own Shias, who constituted a majority of the   population. There is also evidence the Iraqis hoped to bring about the overthrow   of the Khomeini regime and to establish a more moderate government in Iran. 
The friction between Iran and Iraq led to border incidents, beginning in   April 1980.  On September 22, President Saddam Hussein of Iraq suddenly launched   an invasion of Iran. The assault began with an Iraqi air attack on six Iranian   air bases and four Iranian army bases. It was followed by an Iraqi land attack   at four points along a 700-kilometer front. Baghdad believed that the   post-revolutionary turmoil in Iran would permit a relatively quick victory and   would lead to a new regime in Tehran more willing to accommodate the interests   of Iran's Arab neighbors. This hope proved to be a false one for Iraq. 
Before the war ended in 1988, somewhere between 500,000 and a million people   were dead, between 1 and 2 million people were injured, and there were two to   three million refugees. Although little-covered in the Western media, the war   was a human tragedy on a massive scale. 
Air power did not play a dominant role in the Iran-Iraq war, because neither   side was able to use its combat aircraft very effectively. Fighter-vs-fighter   combat was rather rare throughout the entire course of the Iran-Iraq war. During   the first phase of the war, Iranian aircraft had the fuel and the endurance to   win most of the few aerial encounters that did occur, either by killing with   their first shot of an AIM-9 missile or else by forcing Iraqi fighters to   withdraw. However, at this stage in the war the infrared homing missiles used by   the fighters of both sides were generally ineffective in anything other than   tail-chase firings at medium to high altitudes. 
Initially, Iranian pilots had the edge in training and experience, but as the   war dragged on, this edge was gradually lost because of the repeated purges   within the ranks of the Iranian military which had removed many experienced   officers and pilots who were suspected of disloyalty to the Islamic   fundamentalist regime or those with close ties or sympathies with the West. The   effects of the arms embargo and the shortage of spare parts caused the number of   F-5s which were available for combat steadily to decrease, and by the beginning   of 1983, only 40 to 65 F-5s could be put into the air at any given time. As   Iranian capabilities declined, Iraqi capabilities gradually improved. After   1982, Iraq managed to improve its training and was able to acquire newer and   better equipment from French manufacturers, especially the Dassault Breguet   Super Etendard and the Mirage F-1. The Mirage F-1 was capable of firing the   Matra R-550 Magic air-to-air missile, which had a 140-degree attack hemisphere,   a head-on attack capability, high-g launch and maneuver capability, and a 0.23   to 10-km range. The Magic could also be launched from the MiG-21, and proved to   be far superior to the standard Soviet-supplied infrared homer, the Atoll.   Mirage F-1s were reported to have shot down several Iranian aircraft with Magic   missiles and as having scored kills even at low altitudes. After 1982, Iraq   generally had the edge in air-to-air combat, and Iran lost most of the few   encounters that took place after 1983 unless pilots used carefully-planned   ambushes against Iraqi planes that were flying predictable routes. The Iranians   could not generate more than 30-60 sorties per day, whereas the number of daily   sorties that Iraq could mount steadily increased year after year, reaching a   peak as high as 600 in 1986-88. 
The Iranians found it extremely difficult to keep their F-5 fleet operational   all throughout the Iran-Iraq war. The lack of spare parts caused by the arms   embargo plus the general lack of adequate numbers of trained maintenance   personnel made things even worse. A defecting Iranian colonel claimed that   Iran's F-5 force was down to only 10 or 15 flyable aircraft by the end of 1986.   Iran was only able to keep its F-5s flying by scrounging spare parts and   replacements from whatever source it could. Iran was able to acquire spare parts   from Greece and other nations which were F-5 users. In addition, spares trickled   in from Israel and from the US as part of the "Irangate" dealings. 
When the war ended in 1988, the IRIAF probably had only a dozen or less F-5s   that were still in good enough condition to fly. Many of the damaged F-5s were   stored in bits and pieces or as incomplete airframes. After the end of the war,   many of these airframes were rebuilt, overhauled, and returned to service. 
Estimates of the number of F-5s in service today in Iran vary greatly. The   most pessimistic estimates are about 40, but more optimistic observers claim   that somewhere between 60 and 65 IRIAF F-5s are currently operational. In   addition, some indigenous upgrades of IRIAF F-5s have been performed. The   APQ-159 radar has been improved and upgraded by on-site personnel, and the range   in search mode has been increased from 32 to 64 kilometers, and in tracking mode   from 16 to 40 kilometers. The IRIAF F-5s are reportedly capable of carrying   semi-active homing missiles, and may be able to carry all-aspect IR homing   missiles such as the Chinese PL-7, the US AIM-9P Sidewinder, and the Russian   R-60 (known AA-8 Aphid). today. 
Last revised October 6, 2001
  
Source : http://home.att.net/~jbaugher1/f5_49.html