U-Tapao Royal Thai Navy Airfield
airport near Bangkok, Thailand
U-Tapao Royal Thai Navy Airfield is a military airfield of the Royal Thai Navy (RTN) approximately 140 kilometres (87 mi) southeast of Bangkok in the Ban Chang District of Rayong Province near Sattahip on the Gulf of Thailand. It serves as the home of the RTN First Air Wing.
Etymology
U-Tapao (Thai: อู่ตะเภา) is a compound of อู่ cradle or drydock and ตะเภา trade winds, and derives from the site having once been a shipyard for construction of ruea-tapao (เรือตะเภา), a type of argosy resembling a Qing Dynasty junk.
History
In 1965 the RTN was permitted by the Council of Ministers to build a 1,200-meter (3,940 ft) long airfield near U-Tapao village, Ban Chang District, in Rayong Province. The United States, seeking a Southeast Asian base for its large jet aircraft, reached an agreement with the Thai government to build and operate the base in conjunction with the RTN. The US began construction of the runway and all facilities on 15 October 1965 and completed it on 2 June 1966. The base was administratively handed over to the RTN on 10 August 1966.
The 11,000-foot (3,400 m) runway became operational on 6 July 1966 and U-Tapao received its first complement of United States Air Force (USAF) Strategic Air Command (SAC) KC-135 tankers in August 1966. The USAF had been flying B-52 Stratofortress bombers Operation Arc Light bombing missions over South Vietnam from Kadena Air Base on Okinawa, but Okinawa was judged to be too far from South Vietnam to meet mission requirements. An optimal solution was to base the B-52s in South Vietnam or Thailand, however base security in South Vietnam was problematic. U-Tapao had an existing runway suitable for the bombers and the cost for upgrades to the base was minimal.
This brief starts where responsible research should: with the source description of “U-Tapao Royal Thai Navy Airfield” as airport near Bangkok, Thailand. Everything that follows is an evidence route, not borrowed authority.
Why this record matters
The subject matters to the places & architecture register because the source frames it as airport near Bangkok, Thailand. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Maps, plans, fabric surveys and administrative records can establish how the site’s name, extent and function changed over time. The source revision retrieved here is dated Aug 31, 2026. The linked authority identifier is Q7862930. Authority coordinates are 12.680, 101.005. 2 of 2 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1965 and 1966.
A single description cannot reconcile every naming convention, rebuilding phase or administrative transfer associated with a place. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
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Three-step research path
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Questions for further research
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This entry incorporates text from “U-Tapao Royal Thai Navy Airfield” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.