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|Korat Royal Thai Air Force Base|
|Part of Royal Thai Air Force (RTAF)|
23 July 1987
|Type||Air Force Base|
|Condition||Military Air Force Base|
|This article needs additional citations for verification. (December 2012)|
|Korat Royal Thai Air Force Base|
|Part of Royal Thai Air Force (RTAF)|
23 July 1987
|Type||Air Force Base|
|Condition||Military Air Force Base|
|IATA: none – ICAO: none|
|Elevation AMSL||729 ft / 222 m|
Korat Royal Thai Air Force Base is a base of the Royal Thai Air Force located in northeast Thailand, approximately 157 miles (250 km) northeast of Bangkok and about 5 miles (8 km) south of the centre of Nakhon Ratchasima (which also known as Khorat or Korat), the second largest city in Thailand.
During the 1980s and early 1990s, the airfield was jointly operated as a civil airport for Nakhon Ratchasima. This was ended with the opening of Nakhon Ratchasima Airport in the early 1990s.
102 Squadron flies 15 F-16A-15ADF and 1 F-16B-15ADF Fighting Falcon air defense airplanes acquired from the USAF and delivered to the RTAF in 2003 and 2004.These airplanes were acquired under the code name Peace Naresuan IV.
103 Squadron flies 8 F-16A and 4 F-16B acquired under the code name Peace Naresuan 1,5 F-16A(out of 6 delivered) under the code name Peace Naresuan 11,3 F-16A and 4 F-16B acquired from the Republic of Singapore Air Force and delivered in late 2004.All F-16s are the block 15 version.
A detachment of 1 UH-1H Irouquois helicopter from 203 Squadron,Wing 2 is also at Korat.
Korat RTAFB is a major facility for the Cope Tiger exercises, an annual, multinational exercise conducted in two phases in the Asia-Pacific region.
Cope Tiger involves air forces from the United States, Thailand and Singapore, as well as U.S. Marine Corps aircraft deployed from Japan. U.S. Navy aircraft have also been involved on Cope Tiger. The flying training portion of the exercise promotes closer relations and enables air force units in the region to sharpen air combat skills and practice interoperability with U.S. forces. Pilots fly both air-to-air and air-to-ground combat training missions.
Participating American aircraft have included the A-10 Thunderbolt II, F-15C/D Eagles and F-15E Eagles, F/A-18A/C Hornets, F/A-18E/F Super Hornets, F-16C/D Fighting Falcons, E-3B/C Sentry Airborne Warning and Control Systems (AWACS) aircraft, KC-135 Stratotanker aerial refueling aircraft, C-130H Hercules airlift aircraft from 36 Airlift Squadron, and Sikorsky HH-60G Pave Hawk helicopters.
Singapore forces fly F-5E and F-16C/D Fighting Falcons,Lockheed KC-130B Hercules,Grumman E-2C Hawkeye,Boeing CH-47SD Chinook and Eurocopter AS-532UL Couger.
More than 1,100 people participate, including approximately 500 U.S. servicemembers and 600 servicemembers from Thailand and Singapore.
Over the last few years,Cope Tiger has widened to include CSAR(Combat Search and Rescue) assets and in 2007 for the first time RTAFB Udon Thani was also used as a base during this exercise. These included a C-130E Hercules from 36 Airlift Squadron,374 Airlift Wing(based at Yokoya AB,Japan)in 2006,and a G-222 and a C-130H from the RTAF in 2007.
Since the 1980s United States Marine Corps F/A-18C Hornet fighters have used Khorat as a base during Cobra Gold exercises.
Korat Royal Thai Air Force Base was established in the 1950s as a RTAF base. Political considerations with regards to Communist forces engaging in a civil war inside Laos and fears of the civil war spreading into Thailand led the Thai government to allow the United States to covertly use five Thai bases beginning in 1961 for the air defense of Thailand and to fly reconnaissance flights over Laos.
Under Thailand's "gentleman's agreement" with the United States, Royal Thai Air Force Bases used by the USAF were considered Royal Thai Air Force bases and were commanded by Thai officers. Thai air police controlled access to the bases, along with USAF Security Police, who assisted them in base defense using sentry dogs, observation towers, and machine gun bunkers.
The USAF forces at Korat were under the command of the United States Pacific Air Forces (PACAF). Korat was the location for TACAN station Channel 125 and was referenced by that identifier in voice communications during air missions. The mission of the USAF forces at Korat was to conduct operations in support of U.S. commitments in Southeast Asia North Vietnam, South Vietnam, Cambodia and Laos. During the Vietnam War, pilots from Korat RTAFB primarily flew interdiction, direct air support, armed reconnaissance and fighter escort missions.
The APO for Korat was APO San Francisco, 96288
The USAF mission at Korat RTAFB began in April 1962, when one officer and 14 airmen were temporarily assigned to the base as the joint U.S. Military Advisory Group (JUSMAG). U. S. Army personnel were already stationed at Camp Friendship, a post adjacent south of the air base. In July 1964, approximately 500 airmen and officers were assigned to Korat to start the beginning of tactical fighter operations. The construction of essential base facilities was initiated and completed by October 1964, although due to its primitive nature, the Air Force living area was known for several years as "Camp Nasty" in counterpoint to the Army facility.
In response to the Gulf Of Tonkin Incident on 31 July 1964, the 6441st Tactical Fighter Wing at Yokota AB, Japan deployed 18 F-105D "Thunderchiefs" of the 36th Tactical Fighter Squadron to Korat on 14 August and commenced operations the following day. The 36th TFS remained at Korat until 29 October then returned to Japan. Rotational deployments to Korat began after that with the 80th TFS deploying F-105s from the 41st Air Division at Yokota AB, Japan though the end of December.
In December 1964, the 44th Tactical Fighter Squadron deployed to Korat from Kadena AB, Okinawa. The 44th would rotate pilots and personnel to Korat on a TDY (Temporary Duty) basis from 18 December 1964 – 25 February 1965, 21 April–22 June 1965, and 10–29 October 1965.
The 44th TFS returned to Kadena AB, Okinawa and assignment to the 18th TFW, but on 31 December 1966, it became only a paper organization without aircraft. The high loss rate of the F-105s in the two combat wings at Korat and Takhli RTAFB mandated the squadron to send its aircraft to Thailand as replacement aircraft. The 44th remained a "paper organization" until 23 April 1967, when it returned to Korat absorbing the personnel, equipment and resources of the 421st TFS.
In April 1965, the 6234th Air Base Squadron was organized at Korat as a permanent unit to support the TDY fighter units and their operations. This squadron was in existence until the end of April when it was discontinued and the 6234th Combat Support Group, the 6234th Support Squadron, and the 6234th Material Squadron were designated and organized as a result of a 3 May Pacific Air Forces (PACAF) special order.
The 6234th Tactical Fighter Wing (Provisional) was activated in April 1965 with Colonel William D. Ritchie, Jr. as Commander. The Wing had the responsibility for all Air Force units in Thailand until permanent wings were established at other bases.
Known deployed squadrons to Korat attached to the 6234th TFW were:
Beginning in the fall of 1965 the rotation of temporary squadrons ceased with the permanent assignments of several CONUS squadrons.
The 6234th TFW and its subordinate units operating F-105Ds and F-4Cs flew 10,797 sorties totaling 26,165 hours. The wing's efforts merited the Presidential Unit Citation in March 1966.
After a series of TDY deployments of F-105s to Korat, on 8 April 1966 the 388th Tactical Fighter Wing was reassigned to Korat from McConnell AFB, Kansas to replace the provisional 6234th TFW. The 388th Tactical Fighter Wing, along with the 355th based at s based at Takhli RTAFB in August were to carry the brunt of the tactical air war to North Vietnam. Upon activation the 388th absorbed the personnel and resources of the 6234th.
By 1967, Korat RTAFB was home to as many as 34 operating units and about 6,500 USAF airmen. Korat also housed components of the Royal Thai Air Force, and a complement of Royal New Zealand Air Force (RNZAF) Bristol Freighters. The annual cost for base operations and maintenance was about $12,000,000. The monthly average expenditure for munitions was on the order of $4,360,000.
F-105D tactical fighter-bomber squadrons assigned to the 388th TFW were:
The Thunderchief made an excellent tactical bomber. The internal bomb bay had originally been designed with nuclear weapons in mind, but for operations in Southeast Asia, the internal bay of the F-105D rarely carried any ordnance, usually being fitted with a 365-gallon auxiliary fuel tank. With the exception of the ammunition for the M61A1 cannon, all the ordnance was carried externally. With multiple ejector racks the F-105D could carry an impressive load of external fuel, ECM gear, and up to eight 750-pound bombs on long-range missions. On short-range missions, it could carry sixteen 750-pound bombs. Alternative combat loads were two 3000-pound bombs or three drop tanks. On a typical mission over North Vietnam, the F-105D would carry six 750-pound bombs or five 1000-pound bombs, along with two 450 US-gallon drop tanks. The D could also carry the Martin AGM-12 Bullpup air-to-surface missile, but this weapon was to prove almost useless in Vietnam against hardened targets. The F-105D could carry 2.75-inch rocket pods, napalm canisters, as well as four AIM-9 Sidewinder infrared homing air-to-air missiles. The M61A1 Gatling-type 20-mm cannon proved invaluable in the dual role of air-to-air combat and ground strafing.
When approaching Hanoi from Thailand, the F-105Ds had to cross "Thud Ridge", the name given by Thunderchief pilots to a series of hills located between the Red and Black Rivers. Once over "Thud Ridge", the F-105s would approach their targets low and fast, an environment in which the F-105D excelled. Maneuverability and stability during low-level, high-speed flight were excellent due to the aircraft's high wing loading.
The 388th TFW lost 48 aircraft in combat during 1967. Seven others were lost due to non-combat reasons. 43 Pilots and Electronic Warfare Officers (EWO) were listed as killed (KIA) or missing in action (MIA). 15 were rescued. The high attrition rate of F-105Ds in Southeast Asian operations soon became a problem. The conversion of USAFE units to the F-4D Phantom enabled some of the European-based F-105Ds to be transferred to Southeast Asia, but this was not sufficient to offset the heavy attrition rate.
On 31 October 1972, the 469th TFS was inactivated in place as part of the drawdown of forces in Southeast Asia and its aircraft and a few select crews used to augment the 34th TFS.
The Wild Weasel concept was originally proposed in 1965 as a method of countering the increasing North Vietnamese SAM threat, using volunteer crews. The mission of the Wild Weasels was to eliminate Communist Surface to Air Missile sites in North Vietnam. F-105F/G "Wild Weasel" SAM Anti-Radar squadrons assigned to the 388th TFW were:
In early 1966, standard F-105D's with no special Electronic countermeasures (ECM) equipment accompanied F-100 Wild Weasel I aircraft equipped with basic ECM equipment. In general, the F-100 would identify the SAM site and the F-105D's would fly the actual strike. The mission gradually evolved with the addition of new weapons and ECM equipment until the F-4 Phantom II replaced the F-100 and the F-105D was replaced by the more capable and specialized two-place F-105F and -G models.
The tactics employed on the Iron Hand missions were primarily designed to suppress the SA-2 and gun-laying RADAR defenses of North Vietnam during the ingress, attack and egress of the main strike force. In the suppression role, AGM-45 Shrike missiles were employed to destroy, or at least harass, the SA-2 and/or fire control RADAR which guided the SA-2 missiles.
On 23 April 1967 the 44th TFSs' primary mission became one of flying escort to the wing's regular strike force to suppress Anti Aircraft Artillery (AAA) and surface-to-air missile (SAM) as a Wild Weasel squadron.
The 12th Tactical Fighter squadron was equipped with the F-105G and was temporarily reassigned to Takhli in June 1967. The Detachment returned to its main unit at Korat and the 44th TFS was returned to Korat in September 1970 from the 355th TFW to the 388th TFW when the decision was made to consolidate the units of the Wild Weasel mission. With their return, the 6010th Wild Weasel Squadron was formed. The 6010th TFS's aircraft flew with tail code "ZB". The squadron was redesignated the 17th Wild Weasel Squadron on 1 December 1971 and its aircraft recoded "JB".
In February 1972, the 67th TFS returned on Temporary Duty to Korat from Kadena AB, this time being equipped with the EF-4C aircraft. The EF-4C was the initial Wild Weasel version of the Phantom. It was a modified version of the F-4C, designed in parallel with the F-105G Wild Weasel program. The EF-4Cs suffered from certain deficiencies which limited their combat effectiveness. For example, they were unable to carry the Standard ARM. Consequently, the EF-4C was seen only as an interim Wild Weasel aircraft, pending the introduction of a more suitable type. In February 1973, after the end combat operations in Vietnam, the 67th TFS with its EF-4C "Wild Weasles" were withdrawn and returned to Kadena.
In mid-1968 it was decided to make the 388th an F-4 Wing, and also to equip the 388th with the new F-4E and the F-105s would be transferred to Takhli and all of the Thuds in the fighter-bomber mission would be consolidated there. The Wild Weasels would remain at Korat along with the F-4s in their specialized mission.
The main difference with the F-4E model was the addition of an internal M61 cannon. The F-4C and D models previously in use had shown some serious drawbacks in the initial air-to-air battles over Vietnam. The earlier Sparrow, Falcon, and Sidewinder air-to-air missiles did not perform up to expectations. They were expensive, unreliable, and vulnerable to countermeasures. Many an enemy MiG was able to escape unscathed because a Phantom-launched missile malfunctioned and missed its target. The Phantoms could carry a podded cannon mounted on the centerline, but it was relatively inaccurate, caused excessive drag which reduced the performance of the Phantom carrying it, and took up a valuable ordnance/fuel station.
On 17 November 1968, an F-4E Phantom squadron from Eglin AFB, FL, replaced the single-seat F-105D Thunderchiefs of the 469th TFS. The new Phantom squadron, the first E-models in Thailand, retained the designation 469th TFS.
On 10 May 1969, the 34th Tactical Fighter Squadron was transferred organizationally to the 347th TFW at Yokota AB, Japan, but it remained attached to the 388th TFW at Korat. It was re-equipped with F-4Es on 5 July.
On 15 May 1969, the F-105-equipped 44th Tactical Fighter Squadron was transferred and reassigned to the 355th TFW at Takhli Royal Thai Air Force Base. June 1972 4104 ARefS Prov. was assigned to Korat. KC-135 from 305 ARefS, Grissom AFB. Later in 1972 relocated to UT On 12 June 1972, the 35th Tactical Fighter Squadron flying F-4D's was deployed from the 3rd TFW, Kusan AB, South Korea, in a "Constant Guard" redeployment to support operations over North Vietnam during Linebacker. They remained until 10 October 1972 when they returned to Korea.
An expansion of combat operations from Korat initiated with the arrival of EC-121 Warning Stars of the College Eye Task Force (later designated Det 1, 552d Airborne Early Warning and Control Wing) from Ubon RTAFB, and Batcats of the 553d Reconnaissance Wing. The initial College Eye support team personnel arrived at Korat on 20 September 1967. Less than a month later, on 17 October the first seven EC-121D aircraft redeployed from Ubon, followed two days later by the arrival of the Batcat EC-121Rs.
The College Eye EC-121Ds provided airborne radar coverage and surveillance in support of aircraft flying combat operations. Combat reconnaissance missions of the 552d resumed November 25, 1967. These missions normally required the aircraft to be on station for 8 hours. Including transit time to and from station, an average flight was typically about 10 hours, and the force ranged between 5 and 7 aircraft at any one time.
The mission of the 20 Batcats was to interdict and reduce the flow of supplies from North Vietnam down the Ho Chi Minh trail to the NVA soldiers and Viet Cong insurgents in South Vietnam. Their primary objective was to create an anti-vehicle barrier. If the vehicles could be stopped, then a major quantity of enemy supplies would be halted.
While enemy vehicle traffic was the primary target, it was also intended to detect individuals walking down the Ho Chi Minh Trail. To assist with detection of individuals, small bomblets were dropped along the trail. When someone stepped on a bomblet it would detonate, and this small explosion was picked up by the sensors.
In November 1970, the 553d RW was inactivated. The 554th RS transferred to Nakhon Phanom RTAFB to operate QU-22 "Baby Bats", while the 553rd RS remained at Korat with 11 Batcats until December 1971, when it returned to Otis AFB, Massachusetts.
Det. 1 remained at Korat until June 1970, when it left Thailand. It returned in November 1971, now known as "Disco", after MiGs threatened B-52 and other aircraft operating in southern Laos. It remained at Korat, supporting Operation Linebacker, Linebacker II and other USAF operations, until June 1, 1974, when it returned to McClellan AFB, California.
NATO-based B-66Bs from USAF units based in France were transferred to Thailand and were used during the Vietnam War as electronic warfare aircraft, joining strike aircraft during their missions over North Vietnam to jam enemy radar installations. They were not "Wild Weasel" aircraft, since they did not have provisions to attack the radar installations directly.
In November 1970, the 42nd Tactical Electronic Warfare Squadron (TEWS), which flew EB-66s, transferred to Korat from Takhli. The EB-66C/E flew radar and communications jamming missions to disrupt enemy defenses and early warning capabilities.
The crew consisted of seven—pilot, navigator, gunner, plus four additional crewmembers who sat inside a pressurized compartment that replaced the camera/bomb bay. The basic three cremembers in the front used upward-firing ejector seats, whereas the four additional ECM operators used downward-firing ejector seats. An extensive suite of specialized equipment was fitted to locate and identify enemy radar emissions. Additional ECM equipment was carried in wingtip pods. Chaff dispensing pods could be carried underneath the wing outboard of the engine nacelles. Later examples had the tail turret removed and replaced by additional ECM equipment installed in an extended tailcone.
On April 2, 1971, an EB-66C (Bat 21) was shot down over South Vietnam near the DMZ during the Easter Offensive. LtCol. Iceal "Gene" Hambleton was the only crew member able to eject, which set into motion an 11 1/2 day search and rescue operation. His survival behind enemy lines and eventual rescue by Navy SEAL Thomas R. Norris and ARVN commando Nguyen Van Kiet was dramatized in the movie Bat*21.
On 1 December 1971 the 7th Airborne Command and Control Squadron (ACCS) was assigned to the 388th TFW from Udon RTAFB and began flying missions in its EC-130E "Hercules" aircraft, (Tail Code: JC) which were equipped with command and control capsules.
The 7th ACCS played an extremely important role in the conduct of air operations. During the action in Southeast Asia, the squadron had a minimum of two aircraft airborne 24 hours a day directing and coordinating the effective employment of tactical air resources throughout SEA. Its aircraft functioned as a direct extension of ground-based command and control authorities, the primary mission was providing flexibility in the overall control of tactical air resources. In addition, to maintain positive control of air operations, the 7th ACCS provided communications to higher headquarters. The battle staff was divided into four functional areas: command, operations, intelligence, and communications. Normally, it includes 12 members working in nine different specialties. Radio call signs for these missions were "Moonbeam", "Alleycat", "Hillsboro", and "Cricket"
On 29 September 1972, the 354th Tactical Fighter Wing, based at Myrtle Beach AFB SC, deployed 72 A-7D Corsair II of the 355th, 353rd and 354th Tactical Fighter Squadrons and the 356th Tactical Fighter Squadron to Korat for a 179-day Temporary Duty (TDY). By mid-October, 1,574 airmen from Myrtle Beach had arrived as part of "Constant Guard IV".
In addition to strike missions during Operations Linebacker and Linebacker II, A-7D's of the 354th assumed the Combat Search and Rescue "Sandy" role from the A-1 Skyraider in November 1972 when the remaining Skyraiders were transferred to the Vietnamese Air Force. In addition, the 354th deployed some personnel to Bien Hoa Air Base, South Vietnam. The 354th generated about 50 sorties each day.
In March 1973 A-7D aircraft were drawn from the deployed 354th TFW squadrons and assigned to the 388th TFW as the 3d Tactical Fighter Squadron (Tail Code: JH). Some TDY personnel from the 354th TFW were assigned to the 388th and placed on permanent party status.
The 354th TFW Forward Echelon at Korat also became a composite wing. Along with the Myrtle Beach personnel, elements of the 355th Tactical Fighter Wing from Davis-Monthan AFB AZ (Tail Code: DM) were deployed to support the A-7D aircraft, being replaced by A-7Ds from the 23d Tactical Fighter Wing' from England AFB LA (Tail Coded: EL). These airmen rotated on 179-day assignments (the limit for TDY assignments) to Korat from these CONUS bases until early 1974.
The Paris Peace Accords were signed on January 27, 1973 by the governments of North Vietnam, South Vietnam, and the United States with the intent to establish 'peace' in Vietnam. The accords effectively ended United States military operations in North and South Vietnam. Laos and Cambodia, however, were not signatories to the Paris agreement and remained in states of war with their internal rebel forces.
The United States was helping the Royal Laotian government achieve whatever advantage possible before working out a settlement with the Laotian Communists and their allies.
The USAF flew 386 combat sorties over Laos during January and 1,449 in February 1973. On 17 April, the USAF flew its last mission over Laos, working a handful of targets requested by the Laotian government.
In Cambodia there was no peace in 1973. The USAF carried out a massive bombing campaign to try to stop the Vietmihns on the Ho-Chi-Minh trail.
Congressional pressure in Washington grew against these bombings, and on 30 June 1973, the United States Congress passed Public law PL 93-50 and 93-52, which cut off all funds for combat in Cambodia and all of Indochina effective 15 August 1973. Air strikes by the USAF peaked just before the deadline, as the Cambodian Army engaged a force of about 10,000 Khmer Rouge rebels that encircled Phnom Penh.
At 1100 hours (local), 15 August 1973, the congressionally mandated cutoff went into effect, bringing combat activities over the skies of Cambodia to an end. A-7 and F-4's from Korat flew strike missions sometimes less than 10 miles (16 km) from Phnom Penh that morning before the cutoff. The final day marked the conclusion of an intense 160-day campaign, during which the USAF expended 240,000 tons of bombs.
At Korat, two A-7D pilots from the 354th TFW returned from flying the last USAF combat mission over Cambodia. Members of the news media had arrived at the base earlier to mark this auspicious occasion. However, the A-7 pilots did not display the excitement that the journalists were expecting.
The Cambodian people did not understand why the United States would, on this arbitrary date, leave, especially after their request for assistance. This led to a faster takeover of the situation by the Khmer Rouge.
With the end of active combat in Indochina on 15 August 1973, the USAF began drawing down its Thailand-based units and closing its bases.
The 388th TFW entered into intensive training program to maintain combat readiness and continued to fly electronic surveillance and intelligence missions. The F-4 and A-7 aircraft practiced bombing and intercept missions in western Thailand. A large exercise was held on the first Monday of every month, involving all USAF units in Thailand. "Commando Scrimmage" covered skills such as dogfighting, aerial refueling, airborne command posts and forward air controllers. These exercises were taken very seriously. The A-7D aircraft were pitted against the F-4 aircraft in dissimilar air combat exercises. These missions were flown as a deterrent to the Communists in Vietnam as a signal that if the Paris Peach accords were broken, the United States would use its airpower to enforce its provisions.
A drawdown of forces in Thailand was announced in mid-1974 that of the 43,000 Americans and 500 aircraft stationed in Thailand, about 3,500 men and 100 aircraft would be withdrawn. With the closure of Takhli Royal Thai Air Force Base the 347th Tactical Fighter Wing and its two General Dynamics F-111 Tactical Fighter Squadron (428th and 429th) were moved to Korat on 12 July 1974. Later that month, the 16th Special Operations Squadron was moved to Korat from Ubon Royal Thai Air Force Base. This was an AC-130 "Spectre" gunship squadron.
The wars in Cambodia and Laos, however continued. With the political changes in the United States during 1974, and the resignation of President Nixon, The airpower of the United States at its Thailand bases did not respond to the collapse of the Lon Nol government to the Khmer Rouge Communists in Cambodia during March 1975 nor to the takeover of Laos by the Communist Pathet Lao. Ultimately, the North Vietnamese invasion of South Vietnam during March and April 1975 and the collapse of the Republic of Vietnam also was not opposed militarily by the United States.
The only missions flown were aircraft of the 388th TFW providing air cover and escort during Operation Eagle Pull, the evacuation of Americans from Phnom Penh, Cambodia, and Operation Frequent Wind the evacuation of Americans and selected Vietnamese from Saigon, South Vietnam.
On 14–15 May 1975, aircraft assigned to Korat (3rd TFS A-7D, 34th TFS F-4E, 428th TFS F-111A and 16th SOS AC-130) provided air cover in what is considered the last battle of the Vietnam war, the recovery of the SS Mayaguez after it was hijacked by Cambodian communists.
The United States ended its involvement in Southeast Asia by treaty and disengagement rather than by military victory. After the fall of Saigon, relations between Washington and Bangkok turned sour. In May 1975, the Royal Thai Government asked the United States to remove all of its combat forces (27,000 troops, 300 aircraft) by 1976.
On 30 June 1975, the 347th TFW F-111A's and their two squadrons (428th and 429th TFS) were inactivated. The F-111's were sent to the 422d Fighter Weapon Squadron at Nellis Air Force Base, Nevada. The 347th became an F-4E Wing at Moody AFB, Georgia.
At the end of 1975, there were only three combat squadrons at Korat, consisting of 24 F-4D's of the 34th TFS, 24 A-7D's of the 3rd TFS, and 6 AC-130 "Spectre" aircraft of the 16th Special Operations Squadron.
After the departure of the 388th TFW, the USAF retained a small flight of security police at Korat to insure base security and to deter theft of equipment until the final return of the base to the Thai government.
The USAF officially turned Korat over to the Royal Thai Government on 26 February 1976.
After the US withdrawal in 1976, the Royal Thai Air Force consolidated the equipment left by the departing USAF units in accordance with government-to-government agreements, and the RTAF assumed use of the base at Korat. The American withdrawal had quickly revealed to the Thai government the inadequacy of its air force in the event of a conventional war in Southeast Asia. Accordingly, in the 1980s the government allotted large amounts of money for the purchase of modern aircraft and spare parts.
Thirty-eight F-5E and F-5F Tiger II fighter-bombers purchased from the Northrop Corporation formed the nucleus of the Thai air force's defense and tactical firepower. The F-5Es were accompanied by training teams of American civilian and military technicians, who worked with members of the Royal Thai Air Force.
In addition to the F-5E and F-5F fighter-bombers, OV-10C aircraft, transports, and helicopters were added to the air force equipment inventory. In 1985 the United States Congress authorized the sale of the F-16 Fighting Falcon fighter to Thailand.
By the late 1980s, Korat, Takhli, and Don Muang RTAFB outside Bangkok, which the Royal Thai Air Force shared with civil aviation, were the primary operational holdings of the RTAF. Maintenance of the facilities at other bases abandoned by the United States (Ubon, Udorn) proved too costly and exceeded Thai needs and were turned over to the Department of Civil Aviation for civil use. NKP and U-Tapao were placed under the control of the Royal Thai Navy. Nonetheless, all runways on the closed or transferred airfields were still available for military training and emergency use.
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