Sliač Air Base
airport
Sliač Air Base (IATA: SLD, ICAO: LZSL), historically, Letisko Sliač ("Sliač Airport") or Letisko Tri Duby (literally, "The Three Oaks Airport") is a military airport in central Slovakia situated between the towns of Zvolen and Banská Bystrica and near the spa town of Sliač. The airport has one runway which is 2,400 m long (18/36). The airport is used only by the military since October 2021, when the airport has been closed to all civilian traffic.
History
The "Tri Duby Airport" played an important role during the Slovak National Uprising in 1944 when it became the most important airport of the Anti-Fascist movement in Slovakia. Between September 6 and October 25, 1944, the airport was used as the main base of the Slovak Insurgent Air Force but because of the advancing German units, it had to be evacuated. While the territory controlled by the Slovak rebels was being encircled by the German forces, "Tri Duby" and the nearby Zolná airport were the main gateways to the rest of the world. In addition to the significant Soviet aid to Slovakia, the United States were sending in supplies and OSS operatives through "Tri Duby", and these flights were also used to evacuate American flyers liberated from the German POW camps.
The airport changed its name from "Tri Duby" to Sliač in 1945.
Following the Prague Spring in 1968, the airfield became a base for the Soviet Union's air forces, which belonged to relations and Sliač as a fighter-bomber and surveillance base here until 1990.
During Cold War it hosted many aircraft of the Czechoslovak Air Force and Soviet Air Forces such as MiG-15 and its derivatives.
“Sliač Air Base” enters the record as airport. Crown Archives preserves that source wording while asking what Sliač, Base and airport can confirm, complicate or overturn.
Why this record matters
“Sliač Air Base” is worth following because a concise public description often conceals a longer documentary argument. Here, Sliač, Base and airport provides the most credible route into that argument.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Jul 19, 2026. The linked authority identifier is Q1432898. Authority coordinates are 48.638, 19.134. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2021, 1944, 1945 and 1968.
Architectural summaries often privilege surviving fabric and can understate demolished phases, contested use or displaced communities. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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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 “Sliač Air Base” 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.