PWS-1
prototype fighter and reconnaissance aircraft
The PWS-1 was a Polish two-seat fighter and reconnaissance aircraft constructed by Podlaska Wytwórnia Samolotów (PWS) in 1927. It remained a prototype for its entire lifespan.
Design and development
The PWS-1 was the first aircraft design produced by the Podlaska Wytwórnia Samolotów (Podlasie Aircraft Factory), and the second aircraft designed and built in Poland, after the CWL WZ-X. It was conceived as a single-engine high-wing two-seat fighter whose main purpose was to escort bombers. The design was produced in 1926 by Zbysław Ciołkosz and Aleksander Grzędzielski under the direction of Stanisław Cywiński.
After static testing, the prototype first flew on 25 April 1927 in Biała Podlaska. Although it had STOL capability, its maximum speed and maneuverability were low due to its thick wings.
In 1928, the aircraft was reworked, receiving a new lighter-weight, straight wing with a thinner profile and duralumin construction instead of a wooden, slightly swept one. It also received a large rectangular vertical stabilizer with a rounded top. After these modifications were made, the plane was again tested in early 1929 under the designation PWS-1bis. Its performance improved, but because of its relatively low speed compared to other fighters, its primary role was changed to reconnaissance.
“PWS-1” enters the record as prototype fighter and reconnaissance aircraft. Crown Archives preserves that source wording while asking what PWS-1, prototype and fighter can confirm, complicate or overturn.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Feb 14, 2026. The linked authority identifier is Q4844850. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1927, 1926, 1928 and 1929.
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This entry incorporates text from “PWS-1” 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.