PZL Bielsko SZD-55


The PZL Bielsko SZD-55 Nexus is a Standard Class sailplane produced by PZL Bielsko since 1988. It was built in direct competition with the Schempp-Hirth Discus. The SZD-55 is still in production with approximately 110 built.

Design and development

The SZD-55 is built of fiberglass and has an elliptical wing. It has top surface Schempp-Hirth type airbrakes. It is a glider with pleasant handling that is easy to assemble, due to automatic controls hookup. With an empty weight of about 215 kg, it is the lightest of the current standard class gliders and is known for its excellent climbing and thermalling characteristics. The SZD-55 has a fairly cambered wing-section and performs well at lower speeds, but with plenty of water ballast it can also keep up well at higher speeds.
Main designer of the SZD-55 was Tadeusz Łabuć. Since the mid-eighties, the best glider in the standard class was undoubtedly the German standard Discus, whose excellent performance was attributed to its unusual triple trapeze wing shape. So it was logical to adopt a similar idea for use of this outline of the new construction: the elliptical contour of the wing leading edge. Documentation of the glider was developed in 1987 same as prototypes for factory numbers X-144 and X-145 and flew 15.08.1988 and 03.01.1989 by January Roman.
Despite enormous difficulties in obtaining advanced materials and the need for glass-epoxy laminates, the manufacturer managed to create a glider with an unladen weight of just over 200 kg. Klaus Holighaus, one of the finest manufacturers of gliders stated that if using a fiberglass technology PZL Bielsko factory reached less weight than gliders constructed using carbon fiber and Kevlar that means that they developed a new technology. This technology was later improved upon during the design and building of the SZD-56 Diana.

Specifications