3Xtrim Aircraft Factory

3Xtrim Aircraft Factory was a Polish light-aircraft manufacturer based in Bielsko-Biała in southern Poland. The company was established in 1996 by Adam Kurbiel, a former engineer associated with the Polish sailplane manufacturer SZD. It began under the name Wytwórnia i Naprawa Konstrukcji Lekkich - A. Kurbiel, which can be translated broadly as a workshop for the manufacture and repair of light structures. The business drew on the expertise of aerospace workers who had lost employment at the sailplane manufacturer, linking 3Xtrim to the engineering and production traditions of Poland's glider industry. The company changed its name to Zakłady Lotnicze 3Xtrim Sp. z o.o. in November 1999. In English-language references, it is generally identified as 3Xtrim Aircraft Factory or simply 3Xtrim. The name was intended as a wordplay: it referred both to the aircraft being subjected to repeated or “triple” testing through design, prototype, and production stages, and to the idea that the aircraft were designed for extreme conditions. The name is pronounced approximately “Three-Extreme” in English. 3Xtrim concentrated on the design and production of ultralight aircraft. Its principal known aircraft were the 3X55 and 3X47, both of which first flew as prototypes in 1996. The available reference material identifies these aircraft as the core of the company's product activity, but does not reliably establish detailed production totals, engine configurations, certification histories, customer lists, export markets, or a complete list of variants. The company therefore appears to have been a specialist manufacturer rather than a large diversified aerospace group. The business operated from Bielsko-Biała, a city with a significant industrial and aviation heritage. Its workforce included former aerospace personnel, and the company’s technical identity was shaped by the local and national Polish light-aircraft sector. Publicly available information does not establish a parent company, later owner, stock-market listing, or substantial corporate group affiliation. The company appears to have ceased operations by 2014. The precise circumstances of its disappearance from the market are not established by the available reference material, and no reliable source here confirms whether its designs, tooling, or intellectual property were transferred to another manufacturer. Its website is retained as a historical reference, but the current operational status of that site and any continuing support for aircraft are unconfirmed. Accordingly, 3Xtrim is best described as a defunct Polish ultralight-aircraft manufacturer whose documented legacy rests primarily on the 3X55 and 3X47 designs.

3Xtrim Aircraft Factory emerged from Poland's postwar and post-socialist light-aviation engineering tradition. Its founder, Adam Kurbiel, had worked as an engineer at SZD, the Polish sailplane manufacturer. After employment became available for many aerospace workers connected with that industry, Kurbiel established a new enterprise in Bielsko-Biała in 1996. The original business name was Wytwórnia i Naprawa Konstrukcji Lekkich - A. Kurbiel, indicating an initial emphasis on the manufacture and repair of lightweight structures. The company developed its own ultralight-aircraft program. The 3X55 and 3X47 were the principal designs associated with the manufacturer, and both had reached prototype flight in 1996. This placed the company within the specialist end of general aviation, serving the market for relatively small, lightweight aircraft rather than commercial airliners, military aircraft, or large business aircraft. The available record does not provide dependable details about the aircraft's engines, materials, seating arrangements, performance, certification, production quantities, or customer base. In November 1999, the company adopted the name Zakłady Lotnicze 3Xtrim Sp. z o.o. The 3Xtrim identity was constructed as a bilingual or cross-language branding device. It alluded to a process of repeated testing at the design, prototype, and production stages, while also suggesting that the aircraft were intended for extreme conditions. In English, the name was presented as sounding like “Three-Extreme.” The company’s location in Bielsko-Biała was significant because the city and surrounding region had an established connection with aircraft and sailplane production. By employing people formerly associated with the sailplane sector, 3Xtrim retained some of the region's specialized aerospace knowledge while pursuing an independent ultralight-aircraft business. Publicly available sources do not document major acquisitions, a controlling parent, a public listing, or a broad international manufacturing network. 3Xtrim was still represented by an official website and a North American distributor website in references accessed in 2006, suggesting that the company and its aircraft had at least some presence beyond Poland during that period. Those references do not, however, establish the scale or duration of overseas sales. The company appears to have gone out of business by 2014. The surviving record does not explain whether the closure resulted from insolvency, voluntary liquidation, a sale of assets, or another corporate event. Nor does it reliably confirm the later fate of the 3X55 and 3X47 designs. The company's documented history consequently ends with its apparent withdrawal from business, leaving 3Xtrim primarily as a historical Polish ultralight-aircraft manufacturer.

1. 2014Apparent end of business operations

   Available reference material indicates that the company appears to have gone out of business by 2014. The precise closure process is not documented here.

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2. 1999Corporate name changed to Zakłady Lotnicze 3Xtrim

   The company adopted the name Zakłady Lotnicze 3Xtrim Sp. z o.o. in November 1999.

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3. 1996Company established and prototypes begin flying

   Adam Kurbiel established the business in Bielsko-Biała under the name Wytwórnia i Naprawa Konstrukcji Lekkich - A. Kurbiel. The 3X55 and 3X47 ultralight aircraft also first flew in prototype form during 1996.

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A specialist Polish manufacturer of ultralight aircraft built around locally developed designs and the expertise of former sailplane-industry engineers.

• 3X55Ultralight aircraft1996

  The 3X55 was one of 3Xtrim's two principal ultralight-aircraft designs. It first flew in prototype form in 1996 and formed part of the company's core product program. The available sources do not reliably specify its engine, configuration, performance, certification, production volume, or final production status.

• 3X47Ultralight aircraft1996

  The 3X47 was a principal ultralight-aircraft design developed by 3Xtrim and first flown as a prototype in 1996. It represented the company's effort to develop and manufacture lightweight aircraft for the general-aviation market. Detailed technical specifications, customer information, and confirmed production history are not available in the supplied references.

1. 3Xtrim Aircraft Factory
2. Former 3Xtrim official website