FIELD: aeronautical engineering. SUBSTANCE: inner and outer additional stacks and center wall formed by stacks of open contour (with grooves and ports cut in them) are made of laminated polymer composite material. Center wall is mounted in longeron forming front and rear chambers. In the course of moulding, use is made of elastic bags and metal plates for forming these chambers; metal plates are used for through moulding. EFFECT: enhanced accuracy of contour and high dynamic strength of blades. 4 dwg
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