Rotor blade provided with a swivelling flap and a fastening tongue

摘要

The blade (1) has a tiltable trailing-edge flap (5) for pivoting around a virtual hinge axis (Y`) extending along a span of the blade and the flap (5). The flap (5) has two fastener ball joints (30), each provided with an inner cage (32), an outer cage (33) and a pin (31) integrated to the flap (5). The blade has a fastener tongue (20) with swiveling points (21) provided at its trailing edge (BF), where the outer cage is integrated to the points.