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Nakhon Phanom Royal Thai Navy Base

From Wikipedia, the free encyclopedia

Nakhon Phanom Royal Thai Navy Base
Pacific Air Forces.png
Flag of the Royal Thai Navy.svg
Part of Pacific Air Forces (USAF)
Royal Thai Navy (RTN)
Nakhon Phanom Province
Nakhon Phanom Royal Thai Air Force Base in the 1960s looking to the southwest
Coordinates17°23′02″N 104°38′35″E / 17.38389°N 104.64306°E / 17.38389; 104.64306 (Nakhon Phanom RTNB)
TypeNaval Air Base
Site information
OwnerRoyal Thai Navy
OperatorRoyal Thai Navy
Controlled byUnited States Air Force
Royal Thai Navy
ConditionMilitary Naval Air Base
Site history
Built byMobile Construction Battalion Three
In use1963-present
Vietnam Service Medal ribbon.svg

Vietnam War
Garrison information
  56th Special Operations Wing
Airfield information
Elevation AMSL587 ft / 179 m
Coordinates17°23′02″N 104°38′35″E / 17.38389°N 104.64306°E / 17.38389; 104.64306
VTUW is located in Thailand
Location of Nakhon Phanom Royal Thai Air Force Base
Direction Length Surface
ft m
15/33 8,203 2,500 Asphalt
Bob Hope's 1966 Christmas Show at Nakhon Phanom
Bob Hope's 1966 Christmas Show at Nakhon Phanom

The Nakhon Phanom Royal Thai Navy Base (NKP), formerly Nakhon Phanom Royal Thai Air Force Base, is a Royal Thai Navy facility used for riverine patrols along the Mekong River. It is approximately 587 km (365 miles) northeast of Bangkok, 14.5 km (9 miles) west of Nakhon Phanom city in Nakhon Phanom Province in the northeastern region of Thailand, and 411 km (256 miles) from Hanoi in Vietnam. The Mekong River is NKP's border with Laos. The airfield at NKP is jointly used as a civilian airport.

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  • ✪ Nakhon Phanom Air Base, Thailand During The Vietnam War
  • ✪ Vietnam (Phu Cat) and Thailand (NKP) during our war days
  • ✪ 408th MMS load crew 26, Ubon RTAFB, Thailand
  • ✪ NKP Royal Thai AFB - 2002
  • ✪ Nakhon Phanom NKP RTAFB Thailand Camp Tarbox 1972-74




Nakhon Phanom Royal Thai Navy Base was established in the 1950s as a RTAF base.

The civil war inside Laos and fears of it spreading into Thailand led the Thai government to allow the United States to covertly use five Thai bases beginning in 1961 for the air defence 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 defence using sentry dogs, observation towers, and machine gun bunkers. All United States Air Force personnel were not fully armed. There were insufficient arms due to the nature of the mission at NKP. Often instructions were given prior to off-base activities to avoid answering questions posed by the press.

The USAF forces at Nakhon Phanom were under the command of the United States Pacific Air Forces (PACAF).

The APO for NKP was APO San Francisco, 96310

The USAF at Nakhon Phanom

During the Vietnam War NKP was a front-line facility of the Royal Thai Air Force (RTAF) used by the United States in its efforts to defend South Vietnam against insurgency by North Vietnam and the Pathet Lao guerrillas in Laos from 1961 to 1975.

Beginning in the late 1950s, North Vietnam began to move troops into areas of eastern Laos in support of the Pathet Lao, and also as a defensive measure to protect their logistical support of the insurgency in South Vietnam. In September 1959, North Vietnam formed Group 959 in Laos with the aim of building the Pathet Lao into a stronger force in its guerrilla war aimed at overthrowing the Royal Lao Government. Group 959 openly supplied, trained and supported the Pathet Lao militarily.

With Thailand sharing a long common border with Laos along the Mekong River, the Thai government was increasingly concerned about the spread of a communist insurgency into Thailand, which already faced a growing insurgency of its own in that part of the country. The Thai government were concerned about the activities of the Communist Party of Thailand It was therefore receptive to the idea of allowing U.S. military personnel to use Thai territory for operations in support of the Lao Government, and later in support of South Vietnam.

The first American military personnel to arrive at NKP in 1962 were the U.S. Navy's Mobile Construction Battalion Three who undertook the task of constructing runways and raising the first buildings at the new base as part of a United States commitment under SEATO with the 6,000-foot (1,800 m) PSP runway opening on 1 June 1963.[1][2]

On 20 June 1964 2 HH-43B of the 33rd Air Rescue Squadron and their crews were deployed to NKP to provide search and rescue over western Laos for US aircraft engaged in Yankee Team missions, however their short range limited their usefulness.[2]:50-1 Conditions at NKP were initially spartan with no latrines or electric power. At the end of June an electrical generator was installed and living facilities began to be constructed.[2]:51

The 507th Tactical Control Squadron began arriving in August 1964, with the bulk of its personnel arriving in 1964.

In November 1964 Detachment 1 (provisional) equipped with improved HH-43Fs replaced the 2 HH-43Bs at NKP.[2]:60

The 5th Tactical Control Group exercised command jurisdiction over the 507th until May 1965 when the 6235th Air Base Squadron was formed. Overall control of the USAF units was then turned over to the 35th Tactical Group at Don Muang Royal Thai Air Force Base. On 8 April 1966 the 6235th Air Base Squadron was discontinued and the 634th Combat Support Group along with its subordinate squadrons was activated.[3]

On 6 July 1965 2 CH-3Cs assigned to Detachment 1 of the 38th Air Rescue Squadron arrived at NKP improving the rescue capacity there.[2]:69

With U.S. irregular warfare operations already being conducted from the base, on 2 February 1966, the Thai government approved the establishment of a USAF Air Commando unit in Thailand, using the existing USAF facilities at NKP to give the appearance that the United States was not introducing another unit into Thailand. USAF forces at NKP were under the overall command of the United States Pacific Air Forces (PACAF).

NKP initially housed USAF search and rescue forces and maintained a communications capability in support of U.S. Air Force objectives in Southeast Asia. NKP was the location of TACAN station "Channel 89" and was referenced by that identifier in voice communications during air missions. The 634th Combat Support Group was inactivated and the 56th Air Commando Wing was formed on 8 April 1967.[4] The 606th Air Commando Squadron formed the operational backbone of the new wing, and the 56th Combat Support Group took over the major support functions. The 56th Air Commando Wing designation was changed to 56th Special Operations Wing on 1 August 1968.[4]:90

Along with USAF Air Commando and Special Operations forces, MACV-SOG units operated out of NKP, along with Air America, Echo 31 and other clandestine organizations which used NKP as an operating base for their activities in Laos, Cambodia and North Vietnam.

Only older propeller driven aircraft and specialized aircraft operated from the installation. Some of the aircraft operating out of NKP bore civilian markings or were unmarked. In addition, the 56h SOW also worked closely with the U.S. embassies in Laos and Thailand to provide training for special air warfare units.

Squadrons of the 56th SOW

A 609th SOS A-26K starting engines in 1969
A 609th SOS A-26K starting engines in 1969

Special Operations Squadrons

U.S. Air Force air rescue team: Four NKP based A-1 Skyraiders and a Lockheed HC-130P Hercules recovery aircraft refueling a Sikorsky HH-3E Jolly Green Giant helicopter
U.S. Air Force air rescue team: Four NKP based A-1 Skyraiders and a Lockheed HC-130P Hercules recovery aircraft refueling a Sikorsky HH-3E Jolly Green Giant helicopter

Forward Air Control Squadron

Other USAF Squadrons

United States Navy

Lockheed OP-2E Neptune of observation squadron VO-67 on a mission over Laos in 1967/68
Lockheed OP-2E Neptune of observation squadron VO-67 on a mission over Laos in 1967/68

Tenant Units

  • 38th Aerospace Rescue and Recovery Squadron (redesignated 38th Aerospace Rescue and Recovery Squadron on 8 January 1966) 6 July 1965 call sign Jolly Green operating CH-3C/E, HH-3E and HH-53E helicopters.[2]:69
  • 40th Aerospace Rescue and Recovery Squadron 18 March 1968 - 1 October 1975 operating HH-3s, HH-43s, HH-53B/C and HC-130Ps.[2]:114
  • 1987th Communications Squadron (AFCS)
  • 621st Tactical Control Squadron, Detachment 5, Invert
  • Task Force Alpha (Operation Igloo While signal processing center)[6]
  • 10th Weather Squadron Military Airlift Command (MAC)
  • 56th Combat Support Group
  • 456th Munitions Maintenance Squadron
  • 6994th Security Squadron
  • 6908th Security Squadron
  • 6th Aerial Port Squadron (MAC) (Detachment) DET4 6 APS
  • 621st Tactical Control Squadron (Detachment)
  • RED HORSE Squadron

Decorations bestowed on the 56th SOW were:

Major operations involving NKP

Douglas A-1E and A-1H Skyraiders of the 1st SOS and the 602nd SOS at NKP
Douglas A-1E and A-1H Skyraiders of the 1st SOS and the 602nd SOS at NKP
A-26 Invader of the 609th SOS, 1969
A-26 Invader of the 609th SOS, 1969

Operation Barrel Roll

Operation Barrel Roll was a covert USAF 2nd Air Division (later Seventh Air Force) and U.S. Navy Task Force 77, interdiction and close air support campaign conducted in Laos between 14 December 1964 and 29 March 1973 concurrent with the Vietnam War. The initial purpose of the operation was to serve as a signal to North Vietnam to cease its support for the Viet Cong insurgency in South Vietnam. The operation became increasingly involved in providing close air support to the Royal Lao Armed Forces, CIA-backed Hmong forces, and Thai Army elements in a covert ground war in northern and northeastern Laos. The US pulled out of Laos in early 1973 as part of the Paris Peace Accords and the Case–Church Amendment of June 1973 prevented any further US military activity in Laos, Cambodia and Vietnam without Congressional approval.

Operation Ivory Coast

Son Tay Raiders - 1970
Son Tay Raiders - 1970

NKP was one of the staging bases for the failed Sơn Tây prison camp POW rescue mission in November 1970. Its objective was the rescue of approximately 90 American Prisoners of War from the camp. The attempted rescue itself was a failure as the prisoners had been moved some months before.[2]:112

The Mayaguez incident

On 13 May 1975, US Seventh Air Force commander Lieutenant General John J. Burns and his staff developed a contingency plan to retake the SS Mayaguez using an assault force composed of men of the Nakhon Phanom 56th Security Police Squadron. Seventy-five volunteers from the 56th would be dropped onto the containers on the decks of the Mayaguez on the morning of 14 May. In preparation for this assault five HH-53s and seven CH-53s were ordered to proceed to U-Tapao Royal Thai Navy Airfield for staging.[7] At approximately 21:30, one of the 21st SOS CH-53s (AF Ser. No. 68-10933, call sign Knife 13) crashed, killing 18 security police and the five man flight crew.[8]

Palace Lightning - USAF Withdrawal

With the collapse in Laos, the fall of both Cambodia and South Vietnam in April 1975 and in the aftermath of the unauthorized use of Thai bases during the Mayaguez incident, the political climate between Washington and Bangkok began to sour, and the Thai Government demanded that the U.S. remove the bulk of its forces out of Thailand by the end of the year. Under operation Palace Lightning, the USAF began to withdraw its aircraft and personnel from Thailand. On 30 June 1975 the 56th Special Operations Wing was inactivated and the 656th Special Operations Wing was activated as a placeholder unit at NKP until the USAF could complete its withdrawal. The Search and Rescue units were among the last to leave Thailand. On 1 October 1975 the last USAF units left NKP with the 40th Aerospace Rescue and Recovery Squadron moving to Korat Royal Thai Air Force Base and the 3rd Air Rescue and Recovery Group moving to U-Tapao.[2]:154

Accidents and incidents

  • On 21 November 1972, USAF Douglas EC-47Q, AF Ser. No. 43-49771 of the 361st Tactical Electronic Warfare Squadron crashed killing two of the 10 people on board.[9] It had flown a tactical mission under the call sign Baron 56, and had taken off at about 10:44 local time (03:44 UTC). At 17:00, the aircraft was returning from the mission when it bounced on landing and started to depart the left side of the runway. The pilot over-corrected, causing the aircraft to depart to the right of the runway. Although a go-around was initiated, the aircraft hit trees damaging the port propeller. The co-pilot considered that the starboard engine was failing and that engine's propeller was feathered. The aircraft then crashed into another bank of trees 2 nautical miles (3.7 km) beyond the end of the runway. The wrecked aircraft was destroyed in the post-crash fire.[10]

See also


 This article incorporates public domain material from the Air Force Historical Research Agency website

  1. ^ Tregaskis, Richard (1975). Southeast Asia:Building the Bases, The History of Construction in Southeast Asia (PDF). U.S. Navy Seabee Museum. p. 57. ISBN 9781461097235.
  2. ^ a b c d e f g h i Tilford, Earl (1980). Search and Rescue in Southeast Asia 1961–1975 (PDF). Office of Air Force History. p. 113. ISBN 9781410222640.
  3. ^ ://
  4. ^ a b c d e f g h i j k l m n o Ravenstein, Charles A. (1984). Air Force Combat Wings, Lineage & Honors Histories 1947-1977 (PDF). Office of Air Force History. pp. 90–1. ISBN 0912799129.
  5. ^ Mobley, Richard (2015). Knowing the enemy: Naval Intelligence in Southeast Asia (PDF). Naval History and Heritage Command. p. 32-3. ISBN 9780945274780.
  6. ^
  7. ^ Wetterhahn, Ralph (2002). The Last Battle: The Mayaguez Incident and the end of the Vietnam War. Plume. pp. 76–7. ISBN 0-452-28333-7.
  8. ^ Dunham, George R (1990). U.S. Marines in Vietnam: The Bitter End, 1973-1975 (Marine Corps Vietnam Operational Historical Series). Marine Corps Association. p. 240. ISBN 9780160264559.
  9. ^ "43-49771 Accident description". Aviation Safety Network. Retrieved 7 September 2010.
  10. ^ "EC-47 43-49771 Crashed on Takeoff November 21, 1972". EC-47. Retrieved 9 September 2010.


  • Glasser, Jeffrey D. (1998). The Secret Vietnam War: The United States Air Force in Thailand, 1961-1975. McFarland & Company. ISBN 0-7864-0084-6.
  • Martin, Patrick (1994). Tail Code: The Complete History of USAF Tactical Aircraft Tail Code Markings. Schiffer Military Aviation History. ISBN 0-88740-513-4.
  • Robbins, Christopher (1985) Air America. Avon, ISBN 0-380-89909-4
  • Robbins, Christopher (1987) The Ravens: Pilots of the Secret War in Laos. Crown, ISBN 0-517-56612-5
  • Warner, Roger (1998) Shooting at the Moon: The Story of America's Clandestine War in Laos. Steerforth, ISBN 1-883642-36-1
  • Airport information for VTUW at World Aero Data. Data current as of October 2006.

External links

This page was last edited on 9 January 2019, at 02:05
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