Continuing the best traditions in the construction of Polish gliders, the idea for the creation of a high performance glider arose that will be capable of competing in the new 13.5 meter class. The glider will be developed within the “Light and high-performance sailplane with an innovative wind design” project being implemented by Peszke S.C. from Krosno, and the Institute of Aviation.

The key to success will be an innovative wing design that has so far not been used in other sailplanes and technology of producing composite structures that provide the best strength to weight ratio. This will be achieved through the use of hybrid structure formed between the stressed skin, multi-spar wing construction and torsion multi-cell box, which will enable a maximum load of the bearing surface of 35 kg/m2, with a mere 130 kg net weight of the glider. These parameters can be obtained through the use of new generation carbon fibres with a high Young’s modulus and a high temperature and pressure laminate curing technology, which will increase the ultimate strength by about 25 % compared to contemporary gliders.

An excellent aerodynamic performance can be achieved by minimising the induced and interference drag obtained by extensively extending the wing (25-30) and the implementation of turbulisers to control the boundary layer. The aerofile profile will be designed to provide a polar curve as flat as possible while limiting the bearing surface resulting from the sport category. The glider will become even more attractive and competitive due to the possibility of coating it with paint thanks to the increased thermal resistance of the structure.

The Operational Programme Innovative Economy
Priority 1. “Research and development of modern technologies”
Measure 1.3. “Support for R&D projects for entrepreneurs carried out by scientific entities,”
Sub-measure 1.3.1. “Development projects”

Timeframe for execution of project: 01/07/2013 – 30/09/2015.

Costs of the project: PLN 1.362.527

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